Explore topic-wise MCQs in VITEEE.

This section includes 50 Mcqs, each offering curated multiple-choice questions to sharpen your VITEEE knowledge and support exam preparation. Choose a topic below to get started.

1.

RMgBr on reaction with an excess of oxygen followed by hydrolysis gives [Roorkee Qualifying 1998]

A. RH
B. ROOR
C. ROOH
D. ROH
Answer» E.
2.

 Reaction of aqueous sodium hydroxide on (i) ethyl bromide and (ii) chlorobenzene gives

A. (i) Ethene and (ii) o-chlorophenol
B. (i) Ethyl alcohol and (ii) o-chlorophenol
C. (i) Ethyl alcohol and (ii) phenol
D. (i) Ethyl alcohol an d(ii) no reaction
Answer» D. (i) Ethyl alcohol an d(ii) no reaction
3.

Which one is not synthesized by Grignard reagent [MP PET 1991]

A. Primary alcohol
B. Secondary alcohol
C. A ketone
D. An ester
Answer» E.
4.

 Phenol is obtained by heating aqueous solution of [MP PMT 1995]

A. Aniline
B. Benzene diazonium chloride
C. Benzoic acid
D. None of these
Answer» C. Benzoic acid
5.

 Sodium benzene sulphonate reacts with NaOH and then on acidic hydrolysis, it gives [Roorkee 1995; KCET 1998]

A. Phenol
B. Benzoic acid
C. Benzene
D. Disodium benzaldehyde
Answer» B. Benzoic acid
6.

Acetone on treatment with 

CH3−Mg−I

 and on further hydrolysis gives [UPSEAT 2000]

A. Isopropyl alcohol
B. Primary alcohol
C. Acetic acid
D. 2-methyl 2-propanol
Answer» E.
7.

Oil 

+NaOH(aq)−→Δ

Glycerol + Soap Above reaction is called [UPSEAT 2001]

A. Saponification
B. Esterification
C. Hydrogenation
D. None of these
Answer» B. Esterification
8.

 Grignard reagent reacts with compounds containing which of the following groups [MNR 1987]

A. >C=O
B. −C≡N
C. >C=S
D. All of these
Answer» E.
9.

 Absolute alcohol can be obtained from rectified spirit [KCET 1985]

A. By removing the water in it using concentrated sulphuric acid
B. By removing the water using phosphorus pentoxide
C. By distilling with the appropriate amount of benzene
D. By distilling over plenty of quick lime
Answer» D. By distilling over plenty of quick lime
10.

Maltose on hydrolysis gives [BHU 1996; CPMT 2001]

A. Mannose + glucose
B. Galactose + glucose
C. Glucose
D. Mannose + fructose
Answer» D. Mannose + fructose
11.

 Phenolphthalein is obtained by heating phthalic anhydride with conc. 

H2SO4

 and [BHU 1996]

A. Benzyl alcohol
B. Benzene
C. Phenol
D. Benzoic acid
Answer» D. Benzoic acid
12.

The reaction, water gas 

(CO+H2)+H2673K,300

 atmosphere in presence of the catalyst 

Cr2O3/ZnO

 is used for the manufacture of [MP PMT 1989]

A. HCHO
B. HCOOH
C. CH3OH
D. CH3COOH
Answer» D. CH3COOH
13.

An organic compound dissolved in dry benzene evolved hydrogen on treatment with sodium. It is [NCERT 1981; SCRA 1990]

A. A ketone
B. An aldehyde
C. A tertiary amine
D. An alcohol
Answer» E.
14.

 If formaldehyde and potassium hydroxide are heated, then we get [CPMT 1989, 90; KCET 2000]

A. Acetylene
B. Methane
C. Methyl alcohol
D. Ethyl formate
Answer» D. Ethyl formate
15.

Salicylaldehyde can be prepared from [CPMT 1983]

A. Phenol and chloroform
B. Phenol, chloroform and sodium hydroxide
C. Phenol, carbon tetrachloride and NaOH
D. None of these
Answer» C. Phenol, carbon tetrachloride and NaOH
16.

The reaction given below is known as 

C2H5ONa+IC2H5→C2H5OC2H5+NaI

 [CPMT 1990; KCET 1990; MH CET 2003; Pb. CET 2002]

A. Kolbes synthesis
B. Wurtzs synthesis
C. Williamsons synthesis
D. Grignards synthesis
Answer» D. Grignards synthesis
17.

Benzene diazonium chloride on boiling with dilute sulphuric acid gives [MP PMT 1983]

A. Toluene
B. Benzoic acid
C. Benzene
D. Phenol
Answer» E.
18.

Benzyl alcohol is obtained from benzaldehyde by [CPMT 1983; MNR 1993]

A. Fittigs reaction
B. Cannizaros reaction
C. Kolbes reaction
D. Wurtzs reaction
Answer» C. Kolbes reaction
19.

Formaldehyde gives an additive product with methyl magnesium iodide which on aqueous hydrolysis gives [MP PMT/PET 1988]

A. Isopropyl alcohol
B. Ethyl alcohol
C. Methyl alcohol
D. Propyl alcohol
Answer» C. Methyl alcohol
20.

LiAlH4

 converts acetic acid into [CPMT 1977; MP PMT 1990, 92]

A. Acetaldehyde
B. Methane
C. Ethyl alcohol
D. Methyl alcohol
Answer» D. Methyl alcohol
21.

On heating aqueous solution of benzene diazonium chloride, which is formed [CPMT 1988; BHU 1980]

A. Benzene
B. Chlorobenzene
C. Phenol
D. Aniline
Answer» D. Aniline
22.

Primary alcohols can be obtained from the reaction of the RMgX with [Pb. PMT 2001]

A. CO2
B. HCHO
C. CH3CHO
D. H2O
Answer» C. CH3CHO
23.

In the commercial manufacture of ethyl alcohol from starchy substances by fermentation method, which enzymes stepwise complete the fermentation reaction [BIT 1992]

A. Diastase, maltase and zymase
B. Maltase, zymase and invertase
C. Diastase, zymase and lactase
D. Diastase, invertase and zymase
Answer» B. Maltase, zymase and invertase
24.

Chlorination of toluene in the presence of light and heat followed by treatment with aqueous NaOH gives [IIT-JEE 1990]

A. o-cresol
B. p-cresol
C. 2, 4-dihydroxy toluene
D. Benzyl alcohol
Answer» E.
25.

Which enzyme converts glucose and fructose both into ethanol [MP PMT 1989, 90, 96; CPMT 1983, 84, 86, 94; KCET 1989; MNR 1978; MP PET 1994, 99]

A. Diastase
B. Invertase
C. Zymase
D. Maltase
Answer» D. Maltase
26.

Coconut oil upon alkaline hydrolysis gives [MP PET 1991; AFMC 2000; KCET 2001; BCECE 2005]

A. Glycol
B. Alcohol
C. Glycerol
D. Ethylene oxide
Answer» D. Ethylene oxide
27.

The fermentation of starch to give alcohol occurs mainly with the help of [CPMT 1971; MH CET 1999; RPMT 2000]

A. O2
B. Air
C. CO2
D. Enzymes
Answer» E.
28.

Which one of the following will produce a primary alcohol by reacting with 

CH3MgI

 [MP PET 1991]

A. Acetone
B. Methyl cyanide
C. Ethylene oxide
D. Ethyl acetate
Answer» D. Ethyl acetate
29.

Propene, 

CH3−CH=CH2

 can be converted to 1-propanol by oxidation. Which set of reagents among the following is ideal to effect the conversion [CBSE PMT 1991]

A. Alkaline KMnO4
B. B2H6 and alkaline H2O2
C. O3/Zn dust
D. OsO4/CH4,Cl2
Answer» C. O3/Zn dust
30.

 Ethyl alcohol is industrially prepared from ethylene by [CPMT 1985]

A. Permanganate oxidation
B. Catalytic reduction
C. Absorbing in H2SO4 followed by hydrolysis
D. Fermentation
Answer» D. Fermentation
31.

Ethanol is prepared industrially by [MP PMT 1989]Ethanol is prepared industrially by [MP PMT 1989]

A. Hydration of ethylene
B. Fermentation of sugars
C. Both the above
D. None of these
Answer» D. None of these
32.

Methyl phenyl ether can be obtained by reacting

A. phenolate ions and methyl iodide
B. methoxide ions and bromobenzene
C. methanol and phenol
D. bromobenzene and methyl bromide
Answer» B. methoxide ions and bromobenzene
33.

Methanol cannot be dried with anhydrous CaCl2 because

A. CaCl2 dissolves in it
B. it is not good dehydrating agent
C. it forms a solid CaCl2 × 4CH3OH
D. it reacts with CH3OH
Answer» D. it reacts with CH3OH
34.

In Williamson's synthesis

A. an alcohol is heated with conc. H2SO4 at 140°C
B. an alkyl halide is treated with sodium
C. an alkyl halide is treated with sodium alkoxide
D. None of the above
Answer» D. None of the above
35.

In preparation of alkene from alcohol using Al2O3 which is effective factor:

A. Porosity of Al2O3
B. Temperature
C. Concentration
D. Surface area of Al2O3
Answer» C. Concentration
36.

From amongst the following alcohols the one that would react fastest with conc. HCl and anhydrous ZnCl2, is

A. 2-Methylpropan-2-ol
B. 2-Butanol
C. 1-Butanol
D. 2-Methylpropanol
Answer» B. 2-Butanol
37.

Formation of diethyl ether from ethanol is based on a

A. dehydration reaction
B. dehydrogenation reaction
C. hydrogenation reaction
D. heterolytic fission reaction
Answer» B. dehydrogenation reaction
38.

Ethyl chloride is converted into diethyl ether by

A. Perkins reaction
B. Grignard reagent
C. Wurtz reaction
D. Williamsons synthesis
Answer» E.
39.

Denatured alcohol is

A. Rectified spirit + methanol + naphtha
B. Undistilled ethanol
C. Rectified spirit
D. Ethanol + methanol
Answer» B. Undistilled ethanol
40.

Among the following, which one cannot be formed as a product under any conditions?

A. Ethylene
B. Ethyl-hydrogen sulphate
C. Diethyl ether
D. Acetylene
Answer» E.
41.

Chloro ethane reacts with X to form diethyl ether. What is X

A. NaOH
B. H2SO4
C. C2H5ONa
D. Na2S2O3
Answer» D. Na2S2O3
42.

Catalytic dehydrogenation of a primary alcohol gives a

A. ketone
B. aldehyde
C. secondary alcohol
D. ester
Answer» C. secondary alcohol
43.

Anisole can be prepared by the action of methyl iodide on sodium phenate. The reaction is called

A. Fittig’s reaction
B. Williamson’s reaction
C. Wurtz’s reaction
D. Etard’s reaction
Answer» D. Etard’s reaction
44.

An oxygen containing organic compound upon oxidation forms a carboxylic acid as the only organic product with its molecular mass higher by 14 units. The organic compound is ______.

A. a ketone
B. an aldehyde
C. a primary alcohol
D. a secondary alcohol
Answer» D. a secondary alcohol
45.

An organic compound A(C4H9Cl) on reaction with Na/diethyl ether gives a hydrocarbon which on monochlorination gives only one chloro derivative then, A is:

A. iso-butyl chloride
B. secondary butyl chloride
C. t-butyl chloride
D. n-butyl chloride
Answer» D. n-butyl chloride
46.

An organic compound A containing C, H and O has a pleasant odour with boiling point of 78°C. On boiling A with concentrated H2SO4, a colourless gas is produced gas is produced which decolourises bromine water and alkaline KMnO4. The organic liquid A is

A. C2H5COOCH3
B. C2H5OH
C. C2H5Cl
D. C2H6
Answer» C. C2H5Cl
47.

An ether is more volatile than an alcohol having the same molecular formula. This is due to 

A. dipolar character of ethers
B. alcohols having resonance structures
C. inter-molecular hydrogen bonding in ethers
D. inter-molecular hydrogen bonding in alcohols
Answer» E.
48.

Among the following, which is least acidic?

A. phenol
B. o-cresol
C. p-nitrophenol
D. p-chlorophenol
Answer» C. p-nitrophenol
49.

Among the alkenes which one produces tertiary butyl alcohol on acid hydration

A. (CH3)2C = CH2
B. CH3 – CH = CH – CH3
C. CH3 – CH2 – CH = CH2
D. CH3 – CH = CH2
Answer» B. CH3 – CH = CH – CH3
50.

Acid catalysed hydration of alkenes except ethene leads to the formation of

A. mixture of secondary and tertiary alcohols
B. mixture of primary and secondary alcohols
C. secondary or tertiary alcohol
D. primary alcohol
Answer» D. primary alcohol