Group reagent for the precipitation of group II basic radicals for the qualitative analysis table is [MADT Bihar 1982]

\[N{{H}_{4}}Cl\] (solid) + \[N{{H}_{4}}OH\] solution +\[{{H}_{2}}S\]

\[{{\left( N{{H}_{4}} \right)}_{2}}C{{O}_{3}}\] solution

Which of the following compounds is brown coloured [AFMC 2001]

\[F{{e}_{4}}\left[ Fe{{\left( CN \right)}_{6}} \right]\]

\[Fe\left[ Fe{{\left( CN \right)}_{4}} \right]\]

\[Fe\left[ Fe{{\left( CN \right)}_{6}} \right]\]

\[F{{e}_{4}}\left[ Fe{{\left( CN \right)}_{6}} \right]\]

\[{{K}_{2}}Fe\left[ Fe{{\left( CN \right)}_{6}} \right]\]

In the precipitation of the iron group in qualitative analysis, ammonium chloride is added before adding ammonium hydroxide to [AIIMS 1980; NCERT 1976; DPMT 1983; CPMT 1971, 73, 77,78, 80, 81, 83, 86; KCET 1999]

Prevent interference by phosphate ions

Decrease concentration of \[O{{H}^{-}}\] ions

Prevent interference by phosphate ions

Increase concentration of \[C{{l}^{-}}\] ions

Increase concentration of \[NH_{4}^{+}\] ions

A precipitate of the following would be obtained when \[HCl\] is added to a solution of stannous sulphide \[(SnS)\] in yellow ammonium sulphide [CPMT 1977; NCERT 1974]

\[{{(N{{H}_{4}})}_{2}}Sn{{S}_{3}}\]

An aqueous solution contains the ions as \[Hg_{2}^{2+},\] \[H{{g}^{2+}},\] \[P{{b}^{2+}},\] and \[C{{d}^{2+}}\]. The addition of dilute \[HCl\left( 6N \right)\] precipitates [IIT 1995]

\[PbC{{l}_{2}}\] and \[HgC{{l}_{2}}\]

\[H{{g}_{2}}C{{l}_{2}}\] and \[PbC{{l}_{2}}\]

Sodium sulphite on heating with dilute \[HCl\] liberates a gas which [NCERT 1972]

Turns acidified potassium dichromate paper green

White precipitate of AgCl turns to greyish or black when

reacts with \[{{K}_{2}}Cr{{O}_{4}}\]

reacts with \[N{{a}_{3}}As{{O}_{4}}\]

reacts with \[{{K}_{2}}Cr{{O}_{4}}\]

Ammonia forms the complex \[Cu{{(N{{H}_{4}})}_{4}}^{2+}\] with copper ion in alkaline solution, but not in acidic solution. This is because of which of the following?

In alkaline solution, insoluble \[Cu{{(OH)}_{2}}\] is precipitated, which is soluble in excess of any alkali

\[Cu{{(OH)}_{2}}\] is amphoteric.

In an acidic solution, hydration protects\[C{{u}^{2+}}\] ion.

In acidic solution, proton coordinates with \[N{{H}_{3}}\] forming \[N{{H}_{4}}^{+}\] is not available.

Heating an ammoniacal solution of \[MgS{{O}_{4}}\] in the presence of \[N{{H}_{4}}Cl\] and \[N{{a}_{2}}HP{{O}_{4}}\] causes the precipitation of

\[Mg{{(N{{H}_{4}})}_{4}}{{(P{{O}_{4}})}_{2}}\]

Nitrates form a brown ring when treated with \[HCl/FeS{{O}_{4}}\] followed by a few drops of cone. \[{{H}_{2}}S{{O}_{4}}\]. This test depends upon

the oxidation of nitric oxide to nitrogen dioxide

the reduction of nitrate to nitric oxide

the oxidation of nitric oxide to nitrogen dioxide

reduction of ferrous sulphate to iron

oxidizing action of sulphuric acid

Bakelite is a polymer of [DPMT 1996; MP PET 2002]

\[HCHO+\]aldehyde (acetaldehyde)

A mixture of benzaldehyde and formaldehyde on heating with aqueous \[NaOH\] solution gives [IIT-JEE (Screening) 2001]

Sodium benzoate and methyl alcohol

Benzyl alcohol and sodium formate

Sodium benzoate and methyl alcohol

Sodium benzoate and sodium formate

Benzyl alcohol and methyl alcohol

Acetaldehyde reacts with [CBSE PMT 1991]

Both electrophiles and nucleophiles

Aldehydes and ketones can be reduced to corresponding hydrocarbons by [Kerala PMT 2004]

Refluxing with soda amalgam and water

Refluxing with zinc amalgam and concentrated HCl

Schiff's reagent is [MP PMT 1989]

Ammoniacal cobalt chloride solution

Magenta colour solution decolourised with sulphurous acid

Ammoniacal cobalt chloride solution

Ammoniacal manganese sulphate solution

Magenta solution decolourised with chlorine

In the presence of a dilute base \[{{C}_{6}}{{H}_{5}}CHO\] and \[C{{H}_{3}}CHO\] react together to give a product. The product is [MP PET 1994]

\[{{C}_{6}}{{H}_{5}}C{{H}_{3}}\]

\[{{C}_{6}}{{H}_{5}}C{{H}_{2}}C{{H}_{2}}OH\]

\[{{C}_{6}}{{H}_{5}}C{{H}_{2}}OH\]

Compound which gives acetone on ozonolysis [UPSEAT 2003]

\[{{C}_{6}}{{H}_{5}}CH=C{{H}_{2}}\]

\[C{{H}_{3}}-CH=CH-C{{H}_{3}}\]

\[{{(C{{H}_{3}})}_{2}}C=C{{(C{{H}_{3}})}_{2}}\]

\[{{C}_{6}}{{H}_{5}}CH=C{{H}_{2}}\]

Hydrolysis of ozonide of 1-butene gives [Kerala PMT 2003]

Propionaldehyde and Formaldehyde

Which ester given below can most easily be produced by acid catalysed esterification (Fischer's esterification)?

\[C{{H}_{3}}C{{H}_{2}}COO{{C}_{6}}{{H}_{5}}\]

\[C{{H}_{3}}C{{H}_{2}}COOCH(C{{H}_{3}})C{{H}_{2}}C{{H}_{3}}\]

\[C{{H}_{3}}C{{H}_{2}}COOC{{(C{{H}_{3}})}_{2}}C{{H}_{2}}C{{H}_{3}}\]

\[C{{H}_{3}}C{{H}_{2}}COO{{C}_{2}}{{H}_{5}}\]

In cold countries ethylene glycol is added to water in the radiators to [CPMT 1971; NCERT 1971; MP PMT 1993]

Bring down the specific heat of water

11242 + Mcqs in Chemistry in Joint Entrance Exam - Main (JEE Main) Page 224 McqOptions

11151.	Group reagent for the precipitation of group II basic radicals for the qualitative analysis table is [MADT Bihar 1982]
A.	Dil. \[HCl+{{H}_{2}}S\]
B.	\[N{{H}_{4}}Cl\] (solid) + \[N{{H}_{4}}OH\] solution +\[{{H}_{2}}S\]
C.	\[{{\left( N{{H}_{4}} \right)}_{2}}C{{O}_{3}}\] solution
D.	None of these
Answer» B. \[N{{H}_{4}}Cl\] (solid) + \[N{{H}_{4}}OH\] solution +\[{{H}_{2}}S\]

Discussion

11152.	Which of the following compounds is brown coloured [AFMC 2001]
A.	\[Fe\left[ Fe{{\left( CN \right)}_{4}} \right]\]
B.	\[Fe\left[ Fe{{\left( CN \right)}_{6}} \right]\]
C.	\[F{{e}_{4}}\left[ Fe{{\left( CN \right)}_{6}} \right]\]
D.	\[{{K}_{2}}Fe\left[ Fe{{\left( CN \right)}_{6}} \right]\]
Answer» C. \[F{{e}_{4}}\left[ Fe{{\left( CN \right)}_{6}} \right]\]

Discussion

11153.	In the precipitation of the iron group in qualitative analysis, ammonium chloride is added before adding ammonium hydroxide to [AIIMS 1980; NCERT 1976; DPMT 1983; CPMT 1971, 73, 77,78, 80, 81, 83, 86; KCET 1999]
A.	Decrease concentration of \[O{{H}^{-}}\] ions
B.	Prevent interference by phosphate ions
C.	Increase concentration of \[C{{l}^{-}}\] ions
D.	Increase concentration of \[NH_{4}^{+}\] ions
Answer» B. Prevent interference by phosphate ions

Discussion

11154.	A precipitate of the following would be obtained when \[HCl\] is added to a solution of stannous sulphide \[(SnS)\] in yellow ammonium sulphide [CPMT 1977; NCERT 1974]
A.	\[SnS\]
B.	\[Sn{{S}_{2}}\]
C.	\[S{{n}_{2}}{{S}_{2}}\]
D.	\[{{(N{{H}_{4}})}_{2}}Sn{{S}_{3}}\]
Answer» C. \[S{{n}_{2}}{{S}_{2}}\]

Discussion

11155.	An aqueous solution contains the ions as \[Hg_{2}^{2+},\] \[H{{g}^{2+}},\] \[P{{b}^{2+}},\] and \[C{{d}^{2+}}\]. The addition of dilute \[HCl\left( 6N \right)\] precipitates [IIT 1995]
A.	\[H{{g}_{2}}C{{l}_{2}}\] only
B.	\[PbC{{l}_{2}}\] only
C.	\[PbC{{l}_{2}}\] and \[HgC{{l}_{2}}\]
D.	\[H{{g}_{2}}C{{l}_{2}}\] and \[PbC{{l}_{2}}\]
Answer» E.

Discussion

11156.	Mark the compound which turns black with \[N{{H}_{4}}OH\] [AFMC 1981; MP PMT 1995]
A.	Lead chloride
B.	Mercurous chloride
C.	Mercuric chloride
D.	Silver chloride
Answer» C. Mercuric chloride

Discussion

11157.	The aqueous solutions of the following salts will be coloured in the case of [IIT 1990]
A.	\[Zn{{(N{{O}_{3}})}_{2}}\]
B.	\[LiN{{O}_{3}}\]
C.	\[CrC{{l}_{3}}\]
D.	Potash alum
Answer» D. Potash alum

Discussion

11158.	On addition of aqueous \[NaOH\] to a salt solution, a white gelatinous precipitate is formed, which dissolves in excess alkali. The salt solution contains [MP PMT 1994]
A.	Chromium ions
B.	Aluminium ions
C.	Barium ions
D.	Iron ions
Answer» C. Barium ions

Discussion

11159.	Which one of the following sulphides is only completely precipitated when the acidic solution is made dilute [MP PET 2000]
A.	\[HgS\]
B.	\[PbS\]
C.	\[CdS\]
D.	\[CuS\]
Answer» D. \[CuS\]

Discussion

11160.	Which of the following give white precipitate when \[HCl\] is added to its aqueous solution
A.	\[H{{g}^{+}}\]
B.	\[M{{g}^{++}}\]
C.	\[Z{{n}^{++}}\]
D.	\[C{{d}^{++}}\]
Answer» B. \[M{{g}^{++}}\]

Discussion

11161.	A metal nitrate reacts with KI to give a black precipitate which on addition of excess of KI convert into orange colour solution. The cation of the metal nitrate is [IIT-JEE (Screening) 2005]
A.	\[H{{g}^{2+}}\]
B.	\[B{{i}^{3+}}\]
C.	\[P{{b}^{2+}}\]
D.	\[C{{u}^{+}}\]
Answer» C. \[P{{b}^{2+}}\]

Discussion

11162.	The alkaline earth metal that imparts apple green colour to the bunsen flame when introduced in it in the form of its chloride is [EAMCET 1979]
A.	Barium
B.	Strontium
C.	Calcium
D.	Magnesium
Answer» B. Strontium

Discussion

11163.	Sodium sulphite on heating with dilute \[HCl\] liberates a gas which [NCERT 1972]
A.	Turns lead acetate paper black
B.	Turns acidified potassium dichromate paper green
C.	Burns with a blue flame
D.	Smells like vinegar
Answer» C. Burns with a blue flame

Discussion

11164.	Which BLUE LIQUID is obtained on reacting equimolar amounts of two gases at\[-30{}^\circ C\]? [IIT 2005]
A.	\[{{N}_{2}}O\]
B.	\[{{N}_{2}}{{O}_{3}}\]
C.	\[{{N}_{2}}{{O}_{4}}\]
D.	\[{{N}_{2}}{{O}_{5}}\]
Answer» C. \[{{N}_{2}}{{O}_{4}}\]

Discussion

11165.	White precipitate of AgCl turns to greyish or black when
A.	reacts with \[N{{a}_{3}}As{{O}_{4}}\]
B.	exposed to sunlight
C.	reacts with \[{{K}_{2}}Cr{{O}_{4}}\]
D.	reacts with concentrated HCl
Answer» C. reacts with \[{{K}_{2}}Cr{{O}_{4}}\]

Discussion

11166.	Ammonia forms the complex \[Cu{{(N{{H}_{4}})}_{4}}^{2+}\] with copper ion in alkaline solution, but not in acidic solution. This is because of which of the following?
A.	In alkaline solution, insoluble \[Cu{{(OH)}_{2}}\] is precipitated, which is soluble in excess of any alkali
B.	\[Cu{{(OH)}_{2}}\] is amphoteric.
C.	In an acidic solution, hydration protects\[C{{u}^{2+}}\] ion.
D.	In acidic solution, proton coordinates with \[N{{H}_{3}}\] forming \[N{{H}_{4}}^{+}\] is not available.
Answer» E.

Discussion

11167.	Heating an ammoniacal solution of \[MgS{{O}_{4}}\] in the presence of \[N{{H}_{4}}Cl\] and \[N{{a}_{2}}HP{{O}_{4}}\] causes the precipitation of
A.	\[Mg(HP{{O}_{4}})S\]
B.	\[Mg(N{{H}_{4}})P{{O}_{4}}\]
C.	\[MgC{{l}_{2}}\]
D.	\[Mg{{(N{{H}_{4}})}_{4}}{{(P{{O}_{4}})}_{2}}\]
Answer» C. \[MgC{{l}_{2}}\]

Discussion

11168.	Nitrates form a brown ring when treated with \[HCl/FeS{{O}_{4}}\] followed by a few drops of cone. \[{{H}_{2}}S{{O}_{4}}\]. This test depends upon
A.	the reduction of nitrate to nitric oxide
B.	the oxidation of nitric oxide to nitrogen dioxide
C.	reduction of ferrous sulphate to iron
D.	oxidizing action of sulphuric acid
Answer» B. the oxidation of nitric oxide to nitrogen dioxide

Discussion

11169.	Acetaldehyde and acetone can be distinguished by [AIIMS 1996; DCE 1999; Pb. CET 2000]
A.	Molisch test
B.	Bromoform test
C.	Solubility in water
D.	Tollen's test
Answer» E.

Discussion

11170.	Only an aldehyde having..... can undergo the aldol condensation [KCET 1998]
A.	At least one beta H atom
B.	At least one alpha H atom
C.	An aromatic ring
D.	No alpha H atom
Answer» C. An aromatic ring

Discussion

11171.	When two molecules of acetaldehyde condense in the presence of dilute alkali, it forms [Bihar MEE 1996]
A.	Acetal
B.	Sodium formate
C.	Aldol
D.	Mesitylene
Answer» D. Mesitylene

Discussion

11172.	Bakelite is a polymer of [DPMT 1996; MP PET 2002]
A.	\[HCHO+\]phenol
B.	\[HCHO+\]aldehyde (acetaldehyde)
C.	Phenol\[+{{H}_{2}}S{{O}_{4}}\]
D.	\[HCHO+\]acetone
Answer» B. \[HCHO+\]aldehyde (acetaldehyde)

Discussion

11173.	A mixture of benzaldehyde and formaldehyde on heating with aqueous \[NaOH\] solution gives [IIT-JEE (Screening) 2001]
A.	Benzyl alcohol and sodium formate
B.	Sodium benzoate and methyl alcohol
C.	Sodium benzoate and sodium formate
D.	Benzyl alcohol and methyl alcohol
Answer» B. Sodium benzoate and methyl alcohol

Discussion

11174.	\[C{{H}_{3}}CH=CHCHO\] is oxidised to \[C{{H}_{3}}CH=CHCOOH\] using [NCERT 1978]
A.	Alkaline \[KMn{{O}_{4}}\]
B.	Selenium dioxide
C.	Ammoniacal \[AgN{{O}_{3}}\]
D.	All of these
Answer» D. All of these

Discussion

11175.	Acetaldehyde reacts with [CBSE PMT 1991]
A.	Electrophiles only
B.	Nucleophiles only
C.	Free radicals only
D.	Both electrophiles and nucleophiles
Answer» C. Free radicals only

Discussion

11176.	Aromatic aldehydes undergo disproportionation in presence of sodium or potassium hydroxide to give corresponding alcohol and acid. The reaction is known as [MNR 1987]
A.	Wurtz's reaction
B.	Cannizzaro reaction
C.	Friedel-Craft's reaction
D.	Claisen reaction
Answer» C. Friedel-Craft's reaction

Discussion

11177.	Benzaldehyde \[+NaOH\to \] [CPMT 1997, 2001; CBSE PMT 1999; Pb. PMT 1999]
A.	Benzyl alcohol
B.	Benzoic alcohol
C.	Hydrobenzamide
D.	Cinnamic acid
Answer» B. Benzoic alcohol

Discussion

11178.	Dimethyl ketones are usually characterised through [MNR 1992]
A.	Tollen's reagent
B.	Iodoform test
C.	Schiff's test
D.	Benedict's reagent
Answer» C. Schiff's test

Discussion

11179.	Which of the following will undergo aldol condensation [IIT 1998]
A.	Acetaldehyde
B.	Propanaldehyde
C.	Benzaldehyde
D.	Trideuteroacetaldehyde
Answer» B. Propanaldehyde

Discussion

11180.	Ketones react with Mg-Hg over water gives [AFMC 2005]
A.	Pinacolone
B.	Pinacols
C.	Alcohols
D.	None of these
Answer» C. Alcohols

Discussion

11181.	Formalin is an aqueous solution of [BHU 1979; DPMT 1983]
A.	Formic acid
B.	Formaldehyde
C.	Fluorescein
D.	Furfur aldehyde
Answer» C. Fluorescein

Discussion

11182.	Silver mirror test can be used to distinguish between [MP PET 2004]
A.	Ketone and acid
B.	Phenol and acid
C.	Aldehyde and acid
D.	Alcohol and phenol
Answer» D. Alcohol and phenol

Discussion

11183.	Which of the following react with \[NaHS{{O}_{3}}\] [Pb. CET 2003]
A.	\[C{{H}_{3}}COC{{H}_{3}}\]
B.	\[C{{H}_{3}}CHO\]
C.	\[HCHO\]
D.	All of these
Answer» E.

Discussion

11184.	Aldehydes and ketones can be reduced to corresponding hydrocarbons by [Kerala PMT 2004]
A.	Refluxing with water
B.	Refluxing with strong acids
C.	Refluxing with soda amalgam and water
D.	Refluxing with zinc amalgam and concentrated HCl
Answer» E.

Discussion

11185.	Acetaldehyde reacts with \[C{{l}_{2}}\] (in excess) to give [MP PMT 1997]
A.	Chloral
B.	Chloroform
C.	Acetic acid
D.	Trichloroacetic acid
Answer» B. Chloroform

Discussion

11186.	Which does not react with Fehling solution [MNR 1983, 93]
A.	Acetaldehyde
B.	Benzaldehyde
C.	Glucose
D.	Formic acid
Answer» C. Glucose

Discussion

11187.	Schiff's reagent is [MP PMT 1989]
A.	Magenta colour solution decolourised with sulphurous acid
B.	Ammoniacal cobalt chloride solution
C.	Ammoniacal manganese sulphate solution
D.	Magenta solution decolourised with chlorine
Answer» B. Ammoniacal cobalt chloride solution

Discussion

11188.	In the presence of a dilute base \[{{C}_{6}}{{H}_{5}}CHO\] and \[C{{H}_{3}}CHO\] react together to give a product. The product is [MP PET 1994]
A.	\[{{C}_{6}}{{H}_{5}}C{{H}_{3}}\]
B.	\[{{C}_{6}}{{H}_{5}}C{{H}_{2}}C{{H}_{2}}OH\]
C.	\[{{C}_{6}}{{H}_{5}}C{{H}_{2}}OH\]
D.	\[{{C}_{6}}{{H}_{5}}CH=CHCHO\]
Answer» E.

Discussion

11189.	An aldehyde on oxidation gives [CPMT 1973, 03; DPMT 1983; Manipal MEE 1995]
A.	An alcohol
B.	An acid
C.	A ketone
D.	An ether
Answer» C. A ketone

Discussion

11190.	\[C{{H}_{3}}COCl\underset{Pd/BaS{{O}_{4}}}{\mathop{\xrightarrow{2H}}}\,C{{H}_{3}}CHO+HCl;\] The above reaction is called [JIPMER 1997]
A.	Reimer-Tiemann reaction
B.	Cannizzaro reaction
C.	Rosenmund reaction
D.	Reformatsky reaction
Answer» D. Reformatsky reaction

Discussion

11191.	Compound which gives acetone on ozonolysis [UPSEAT 2003]
A.	\[C{{H}_{3}}-CH=CH-C{{H}_{3}}\]
B.	\[{{(C{{H}_{3}})}_{2}}C=C{{(C{{H}_{3}})}_{2}}\]
C.	\[{{C}_{6}}{{H}_{5}}CH=C{{H}_{2}}\]
D.	\[C{{H}_{3}}CH=C{{H}_{2}}\]
Answer» C. \[{{C}_{6}}{{H}_{5}}CH=C{{H}_{2}}\]

Discussion

11192.	\[R-CH=C{{H}_{2}}+CO+{{H}_{2}}\] \[\underset{\text{High Pressure}}{\mathop{\xrightarrow{\text{High Temp}}}}\,RC{{H}_{2}}C{{H}_{2}}CHO.\] [DPMT 2004] The above reaction is
A.	Mendius reaction
B.	Oxo process
C.	Sandorn's reaction
D.	Stephen's reaction
Answer» C. Sandorn's reaction

Discussion

11193.	Hydrolysis of ozonide of 1-butene gives [Kerala PMT 2003]
A.	Ethylene only
B.	Acetaldehyde and Formaldehyde
C.	Propionaldehyde and Formaldehyde
D.	Acetaldehyde only
Answer» D. Acetaldehyde only

Discussion

11194.	Propyne on hydrolysis in presence of HCl and \[HgS{{O}_{4}}\] gives [DPMT 1980; CPMT 1983]
A.	Acetaldehyde
B.	Acetone
C.	Formaldehyde
D.	None of these
Answer» C. Formaldehyde

Discussion

11195.	Catalyst used in Rosenmund reduction is [Bihar MEE 1997]
A.	Pd / \[BaS{{O}_{4}}\]
B.	Zn-Hg couple
C.	\[LiAl{{H}_{4}}\]
D.	\[Ni/{{H}_{2}}\]
Answer» E.

Discussion

11196.	Arrange the following in the increasing order of reactivity with \[N{{H}_{3}}\]: (I) \[C{{H}_{2}}O\] (II) \[C{{H}_{3}}CHO\] (III) \[C{{H}_{3}}-CO-C{{H}_{3}}\] (IV)
A.	I<II<III<IV
B.	III<IV<I<II
C.	IV<III<II<I
D.	II<I<IV<III
Answer» D. II<I<IV<III

Discussion

11197.	Which ester given below can most easily be produced by acid catalysed esterification (Fischer's esterification)?
A.	\[C{{H}_{3}}C{{H}_{2}}COO{{C}_{6}}{{H}_{5}}\]
B.	\[C{{H}_{3}}C{{H}_{2}}COOCH(C{{H}_{3}})C{{H}_{2}}C{{H}_{3}}\]
C.	\[C{{H}_{3}}C{{H}_{2}}COOC{{(C{{H}_{3}})}_{2}}C{{H}_{2}}C{{H}_{3}}\]
D.	\[C{{H}_{3}}C{{H}_{2}}COO{{C}_{2}}{{H}_{5}}\]
Answer» E.

Discussion

11198.	In cold countries ethylene glycol is added to water in the radiators to [CPMT 1971; NCERT 1971; MP PMT 1993]
A.	Bring down the specific heat of water
B.	Lower the viscosity
C.	Reduce the viscosity
D.	Make water a better lubricant
Answer» B. Lower the viscosity

Discussion

11199.	Ether can be used [CPMT 1982]
A.	As a general anaesthetic
B.	As a refrigerant
C.	In perfumery
D.	All of these
Answer» E.

Discussion

11200.	Wine (alcoholic beverages) contains [CPMT 1972, 77; BHU 1996; AFMC 2001]
A.	\[C{{H}_{3}}OH\]
B.	Glycerol
C.	\[{{C}_{2}}{{H}_{5}}OH\]
D.	2-propanol
Answer» D. 2-propanol

Discussion

Explore topic-wise MCQs in Joint Entrance Exam - Main (JEE Main).

Group reagent for the precipitation of group II basic radicals for the qualitative analysis table is [MADT Bihar 1982]

Which of the following compounds is brown coloured [AFMC 2001]

In the precipitation of the iron group in qualitative analysis, ammonium chloride is added before adding ammonium hydroxide to [AIIMS 1980; NCERT 1976; DPMT 1983; CPMT 1971, 73, 77,78, 80, 81, 83, 86; KCET 1999]

A precipitate of the following would be obtained when \[HCl\] is added to a solution of stannous sulphide \[(SnS)\] in yellow ammonium sulphide [CPMT 1977; NCERT 1974]

An aqueous solution contains the ions as \[Hg_{2}^{2+},\] \[H{{g}^{2+}},\] \[P{{b}^{2+}},\] and \[C{{d}^{2+}}\]. The addition of dilute \[HCl\left( 6N \right)\] precipitates [IIT 1995]

Mark the compound which turns black with \[N{{H}_{4}}OH\] [AFMC 1981; MP PMT 1995]

The aqueous solutions of the following salts will be coloured in the case of [IIT 1990]

On addition of aqueous \[NaOH\] to a salt solution, a white gelatinous precipitate is formed, which dissolves in excess alkali. The salt solution contains [MP PMT 1994]

Which one of the following sulphides is only completely precipitated when the acidic solution is made dilute [MP PET 2000]

Which of the following give white precipitate when \[HCl\] is added to its aqueous solution

A metal nitrate reacts with KI to give a black precipitate which on addition of excess of KI convert into orange colour solution. The cation of the metal nitrate is [IIT-JEE (Screening) 2005]

The alkaline earth metal that imparts apple green colour to the bunsen flame when introduced in it in the form of its chloride is [EAMCET 1979]

Sodium sulphite on heating with dilute \[HCl\] liberates a gas which [NCERT 1972]

Which BLUE LIQUID is obtained on reacting equimolar amounts of two gases at\[-30{}^\circ C\]? [IIT 2005]

White precipitate of AgCl turns to greyish or black when

Ammonia forms the complex \[Cu{{(N{{H}_{4}})}_{4}}^{2+}\] with copper ion in alkaline solution, but not in acidic solution. This is because of which of the following?

Heating an ammoniacal solution of \[MgS{{O}_{4}}\] in the presence of \[N{{H}_{4}}Cl\] and \[N{{a}_{2}}HP{{O}_{4}}\] causes the precipitation of

Nitrates form a brown ring when treated with \[HCl/FeS{{O}_{4}}\] followed by a few drops of cone. \[{{H}_{2}}S{{O}_{4}}\]. This test depends upon

Acetaldehyde and acetone can be distinguished by [AIIMS 1996; DCE 1999; Pb. CET 2000]

Only an aldehyde having..... can undergo the aldol condensation [KCET 1998]

When two molecules of acetaldehyde condense in the presence of dilute alkali, it forms [Bihar MEE 1996]

Bakelite is a polymer of [DPMT 1996; MP PET 2002]

A mixture of benzaldehyde and formaldehyde on heating with aqueous \[NaOH\] solution gives [IIT-JEE (Screening) 2001]

\[C{{H}_{3}}CH=CHCHO\] is oxidised to \[C{{H}_{3}}CH=CHCOOH\] using [NCERT 1978]

Acetaldehyde reacts with [CBSE PMT 1991]

Aromatic aldehydes undergo disproportionation in presence of sodium or potassium hydroxide to give corresponding alcohol and acid. The reaction is known as [MNR 1987]

Benzaldehyde \[+NaOH\to \] [CPMT 1997, 2001; CBSE PMT 1999; Pb. PMT 1999]

Dimethyl ketones are usually characterised through [MNR 1992]

Which of the following will undergo aldol condensation [IIT 1998]

Ketones react with Mg-Hg over water gives [AFMC 2005]

Formalin is an aqueous solution of [BHU 1979; DPMT 1983]

Silver mirror test can be used to distinguish between [MP PET 2004]

Which of the following react with \[NaHS{{O}_{3}}\] [Pb. CET 2003]

Aldehydes and ketones can be reduced to corresponding hydrocarbons by [Kerala PMT 2004]

Acetaldehyde reacts with \[C{{l}_{2}}\] (in excess) to give [MP PMT 1997]

Which does not react with Fehling solution [MNR 1983, 93]

Schiff's reagent is [MP PMT 1989]

In the presence of a dilute base \[{{C}_{6}}{{H}_{5}}CHO\] and \[C{{H}_{3}}CHO\] react together to give a product. The product is [MP PET 1994]

An aldehyde on oxidation gives [CPMT 1973, 03; DPMT 1983; Manipal MEE 1995]

\[C{{H}_{3}}COCl\underset{Pd/BaS{{O}_{4}}}{\mathop{\xrightarrow{2H}}}\,C{{H}_{3}}CHO+HCl;\] The above reaction is called [JIPMER 1997]

Compound which gives acetone on ozonolysis [UPSEAT 2003]

\[R-CH=C{{H}_{2}}+CO+{{H}_{2}}\] \[\underset{\text{High Pressure}}{\mathop{\xrightarrow{\text{High Temp}}}}\,RC{{H}_{2}}C{{H}_{2}}CHO.\] [DPMT 2004] The above reaction is

Hydrolysis of ozonide of 1-butene gives [Kerala PMT 2003]

Propyne on hydrolysis in presence of HCl and \[HgS{{O}_{4}}\] gives [DPMT 1980; CPMT 1983]

Catalyst used in Rosenmund reduction is [Bihar MEE 1997]

Arrange the following in the increasing order of reactivity with \[N{{H}_{3}}\]: (I) \[C{{H}_{2}}O\] (II) \[C{{H}_{3}}CHO\] (III) \[C{{H}_{3}}-CO-C{{H}_{3}}\] (IV)

Which ester given below can most easily be produced by acid catalysed esterification (Fischer's esterification)?

In cold countries ethylene glycol is added to water in the radiators to [CPMT 1971; NCERT 1971; MP PMT 1993]

Ether can be used [CPMT 1982]

Wine (alcoholic beverages) contains [CPMT 1972, 77; BHU 1996; AFMC 2001]