Phenolphthalein does not act as an indicator for the titration between [NCERT 1976]

\[KOH\] and \[{{H}_{2}}S{{O}_{4}}\]

\[Ba{{\left( OH \right)}_{2}}\] and \[HCl\]

Oxalic acid and \[KMn{{O}_{4}}\]

Two consecutive irreversible first order reaction can be represented by \[A\xrightarrow[{}]{{{k}_{1}}}B\xrightarrow[{}]{{{k}_{2}}}C\].The rate equation for A is integrated to obtain\[{{[A]}_{t}}={{[A]}_{0}}{{e}^{-{{k}_{1}}t}}\] and \[{{[B]}_{t}}=\frac{{{k}_{1}}[{{A}_{0}}]}{{{k}_{2}}-{{k}_{1}}}[{{e}^{-{{k}_{1}}t}}-{{e}^{-{{k}_{2}}t}}]\].At what time will B be present in the greatest concentration?

\[{{t}_{\max }}=\frac{1}{{{k}_{2}}+{{k}_{1}}}\ln \frac{{{k}_{1}}}{{{k}_{2}}}\]

\[{{t}_{\max }}=\frac{1}{{{k}_{1}}+{{k}_{2}}}\ln \frac{{{k}_{2}}}{{{k}_{1}}}\]

\[{{t}_{\max }}=\frac{1}{{{k}_{2}}+{{k}_{1}}}\ln \frac{{{k}_{1}}}{{{k}_{2}}}\]

A metal surface is exposed to solar radiations [DPMT 2005]

The emitted electrons have energy less than maximum value of energy depending upon intensity of incident radiation

The emitted electrons have energy less than a maximum value of energy depending upon frequency of incident radiations

The emitted electrons have energy less than maximum value of energy depending upon intensity of incident radiation

The emitted electrons have zero energy

The emitted electrons have energy equal to energy of photos of incident light

Sodium carbonate cannot be used in place of ammonium carbonate for the precipitation of the fifth group radicals because [AIIMS 1980]

Sodium ions interfere with the detection of fifth group radicals

Concentration of carbonate ions is very low

Sodium will react with acidic radicals

A large increase in the rate of a reaction for a rise in temperature is due to [EAMCET 1980; MP PET 1995]

The shortening of the mean free path

The decrease in the number of collisions

The increase in the number of activated molecules

The shortening of the mean free path

The lowering of the activation energy

An aerosol is a [UPSEAT 2004]

Dispersion of a solid in a liquid

Dispersion of a solid or liquid in a gas

Dispersion of a solid in a liquid

Dispersion of a liquid in a liquid

Which one of the following characteristics is not correct for physical adsorption [AIEEE 2003]

Adsorption on solids is reversible

Adsorption increases with increase in temperature

Both enthalpy and entropy of adsorption are negative

The low density of ice compared to water is due to [Pb. CET 2004]

Induced dipole-induced dipole interactions

Dipole-induced dipole interaction

When \[C{{O}_{2}}\] is passed into lime water it turns milky. When excess of \[C{{O}_{2}}\] is passed, milkyness disappears because

Vaporisable calcium derivative is formed

Water soluble \[Ca{{(HC{{O}_{3}})}_{2}}\] is formed

Vaporisable calcium derivative is formed

In the following sequence of reaction, identify the compounds (A), (B) (C) and (D): \[\underset{Solution}{\mathop{N{{a}_{2}}C{{O}_{3}}}}\,\xrightarrow{S{{O}_{2}}}(A)\xrightarrow{N{{a}_{2}}C{{O}_{3}}}\] \[(B)\xrightarrow[Heat]{S}(C)\xrightarrow{AgN{{O}_{3}}}(D)\]

\[NaHS{{O}_{3}},N{{a}_{2}}S{{O}_{4}},N{{a}_{2}}S,A{{g}_{2}}O\]

\[N{{a}_{2}}S{{O}_{3}},NaHS{{O}_{3}},N{{a}_{2}}S,A{{g}_{2}}S\]

\[NaHS{{O}_{3}},N{{a}_{2}}S{{O}_{3}},N{{a}_{2}}{{S}_{2}}{{O}_{3}},A{{g}_{2}}S\]

\[NaHS{{O}_{3}},N{{a}_{2}}S{{O}_{4}},N{{a}_{2}}S,A{{g}_{2}}O\]

\[N{{a}_{2}}S{{O}_{3}},N{{a}_{2}}S{{O}_{4}},N{{a}_{2}}{{S}_{2}}{{O}_{3}},Ag\]

The velocity of neutrons in nuclear reactor is slowed down by

Ordinary water \[({{H}_{2}}O)\]

The statement ? The mass of a gas dissolved in a given mass of a solvent at any temperature is proportional to the pressure of the gas above the solvent? is [AMU 2002]

Dalton's Law of Partial Pressures

Gold number is [MP PET/PMT 1988]

The mg of gold salt to be added to a lyophilic colloid to coagulate it

The number of mg of lyophilic colloid which should be added to 10 ml of ferric hydroxide sol so as to prevent its coagulation by the addition of 1 ml of 10% sodium chloride solution

The number of mg of lyophilic colloid which should be added to 10 ml of standard gold sol so as to prevent its coagulation by the addition of 1 ml of 10% \[NaCl\]

The mg of gold salt to be added to a lyophilic colloid to coagulate it

The mg of an electrolyte required to coagulate a colloid

A hydrogen electrode placed in a buffer solution of \[C{{H}_{3}}COONa\] and acetic acid in the ratio x : y and y : x has electrode potential value \[{{E}_{1}}\] volts and \[{{E}_{2}}\] volts, respectively at \[\text{25}{}^\circ \text{C}\]. The \[p{{K}_{a}}\] value of acetic acid is (\[{{E}_{1}}\] and \[{{E}_{2}}\] are oxidation potential):

\[\frac{{{E}_{2}}-{{E}_{1}}}{0.118}\]

\[\frac{{{E}_{1}}+{{E}_{2}}}{0.118}\]

\[\frac{{{E}_{2}}-{{E}_{1}}}{0.118}\]

\[-\frac{{{E}_{1}}+{{E}_{2}}}{0.118}\]

\[\frac{{{E}_{1}}-{{E}_{2}}}{0.118}\]

In the chromyl chloride test, the reagent used is [AMU 1983]

\[{{\left( N{{H}_{4}} \right)}_{2}}C{{r}_{2}}{{O}_{7}}\]

\[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\]

\[{{\left( N{{H}_{4}} \right)}_{2}}C{{r}_{2}}{{O}_{7}}\]

Which pair represents chain isomer [RPMT 2000]

\[C{{H}_{3}}CHC{{l}_{2}}\] and \[ClC{{H}_{2}}C{{H}_{2}}Cl\]

n-propyl alcohol and isopropyl alcohol

2-methyl-1 propanol and 2-Methyl-2 propanol

11242 + Mcqs in Chemistry in Joint Entrance Exam - Main (JEE Main) Page 6 McqOptions

251.	Number of electron having the quantum numbers \[n=4,\,\ell =0,\,s=-\frac{1}{2}\] in \[Z{{n}^{+2}}\] ion is/are:
A.	1
B.	0
C.	2
D.	5
Answer» C. 2

252.	Which solid will have the weakest intermolecular forces?
A.	Ice
B.	Phosphorus
C.	Naphthalene
D.	Sodium fluoride
Answer» B. Phosphorus

253.	Which of the following intermolecular forces are present in ?nylon ? 66? [JIPMER 1997]
A.	Vander Waals
B.	Hydrogen bonding
C.	Dipole-dipole interaction
D.	None of these
Answer» C. Dipole-dipole interaction

254.	The colloidal solution of gelatin is known [CPMT 1984]
A.	Solvent loving sol
B.	Reversible sol
C.	Hydrophilic colloids
D.	All of these
Answer» E.

255.	Phenolphthalein does not act as an indicator for the titration between [NCERT 1976]
A.	\[KOH\] and \[{{H}_{2}}S{{O}_{4}}\]
B.	\[Ba{{\left( OH \right)}_{2}}\] and \[HCl\]
C.	\[NaOH\] and acetic acid
D.	Oxalic acid and \[KMn{{O}_{4}}\]
Answer» E.

256.	A well stoppered thermos flask contains some ice cubes. This is an example of a [AIIMS 1992]
A.	Closed system
B.	Open system
C.	Isolated system
D.	Non-thermodynamic system
Answer» D. Non-thermodynamic system

257.	Two consecutive irreversible first order reaction can be represented by \[A\xrightarrow[{}]{{{k}_{1}}}B\xrightarrow[{}]{{{k}_{2}}}C\].The rate equation for A is integrated to obtain\[{{[A]}_{t}}={{[A]}_{0}}{{e}^{-{{k}_{1}}t}}\] and \[{{[B]}_{t}}=\frac{{{k}_{1}}[{{A}_{0}}]}{{{k}_{2}}-{{k}_{1}}}[{{e}^{-{{k}_{1}}t}}-{{e}^{-{{k}_{2}}t}}]\].At what time will B be present in the greatest concentration?
A.	\[{{t}_{\max }}=\frac{1}{{{k}_{1}}+{{k}_{2}}}\ln \frac{{{k}_{2}}}{{{k}_{1}}}\]
B.	\[{{t}_{\max }}=\frac{1}{{{k}_{1}}+{{k}_{2}}}\ln \frac{{{k}_{2}}}{{{k}_{1}}}\]
C.	\[{{t}_{\max }}=\frac{1}{{{k}_{2}}+{{k}_{1}}}\ln \frac{{{k}_{1}}}{{{k}_{2}}}\]
D.	None of these
Answer» C. \[{{t}_{\max }}=\frac{1}{{{k}_{2}}+{{k}_{1}}}\ln \frac{{{k}_{1}}}{{{k}_{2}}}\]

258.	Which of the following solutions has highest osmotic pressure [CPMT 1977]
A.	\[1\,M\,NaCl\]
B.	1 M urea
C.	1 M sucrose
D.	1 M glucose
Answer» B. 1 M urea

259.	A solid compound 'X' on heating gives \[C{{O}_{2}}\] gas and a residue. The residue mixed with water forms 'Y'. On passing an excess of \[C{{O}_{2}}\] through 'Y' water, a clear solution 'Z', is obtained. On boil. 'Z', compound 'X' is reformed. The compound 'X' is
A.	\[Ca{{(HC{{O}_{3}})}_{2}}\]
B.	\[CaC{{O}_{3}}\]
C.	\[N{{a}_{2}}C{{O}_{3}}\]
D.	\[{{K}_{2}}C{{O}_{3}}\]
Answer» C. \[N{{a}_{2}}C{{O}_{3}}\]

260.	It is possible to distinguish between optical isomers by [Manipal MEE 1995; AFMC 1995]
A.	Infrared spectroscopy
B.	Mass spectrometry
C.	Melting point determination
D.	Polarimetry
Answer» E.

261.	The isomerism exhibited by alkyl cyanide and alkyl isocyanide is [AFMC 1995, 97]
A.	Functional
B.	Positional
C.	Tautomerism
D.	Metamerism
Answer» B. Positional

262.	Which of the following is the best description for the behaviour of bromine in the reaction given below? \[{{H}_{2}}O+B{{r}_{2}}\to HOBr+HBr\]
A.	Proton acceptor only
B.	Both oxidized and reduced
C.	Oxidized only
D.	Reduced only
Answer» C. Oxidized only

263.	A 0.1 N solution of \[N{{a}_{2}}C{{O}_{3}}\] is titrated with 0.1 N \[HCl\] solution. The best indicator to be used is [NCERT 1971; DPMT 1983; AFMC 1992; CPMT 1983, 97]
A.	Potassium ferricyanide
B.	Phenolphthalein
C.	Methyl red
D.	Litmus paper
Answer» D. Litmus paper

264.	The number of significant figures in \[6.02\times {{10}^{23}}\]is
A.	23
B.	3
C.	4
D.	26
Answer» C. 4

266.	The reaction \[C{{H}_{4}}+C{{l}_{2}}\underset{{}}{\mathop{\xrightarrow{\text{uv light}}}}\,C{{H}_{3}}Cl+HCl\] is an example of [CBSE PMT 1999, 2002]
A.	Addition reactions
B.	Substitution reaction
C.	Elimination reaction
D.	Rearrangement reaction
Answer» C. Elimination reaction

265.	A metal surface is exposed to solar radiations [DPMT 2005]
A.	The emitted electrons have energy less than a maximum value of energy depending upon frequency of incident radiations
B.	The emitted electrons have energy less than maximum value of energy depending upon intensity of incident radiation
C.	The emitted electrons have zero energy
D.	The emitted electrons have energy equal to energy of photos of incident light
Answer» B. The emitted electrons have energy less than maximum value of energy depending upon intensity of incident radiation

267.	An aqueous solution of oxalic acid dehydrate contains its 6.3 g in 250 mL. The volume of \[0.1N\] NaOH required to completely neutralize 10 mL of this solution
A.	4 mL
B.	20 mL
C.	2 mL
D.	40 mL
Answer» E.

268.	What will be the oxidation number of I in the \[K{{I}_{3}}\]?
A.	\[-\frac{1}{3}\]
B.	\[-\frac{1}{4}\]
C.	4
D.	3
Answer» B. \[-\frac{1}{4}\]

269.	Oxidation number of cobalt in \[[Co{{(N{{H}_{3}})}_{6}}]C{{l}_{2}}Br\] is -
A.	6
B.	zero
C.	3
D.	2
Answer» D. 2

270.	Sodium carbonate cannot be used in place of ammonium carbonate for the precipitation of the fifth group radicals because [AIIMS 1980]
A.	Sodium ions interfere with the detection of fifth group radicals
B.	Concentration of carbonate ions is very low
C.	Sodium will react with acidic radicals
D.	Magnesium will be precipitated
Answer» E.

271.	The angular momentum of an electron depends on
A.	Principal quantum number
B.	Azimuthal quantum number
C.	Magnetic quantum number
D.	All of these
Answer» C. Magnetic quantum number

272.	In a multi-electron atom, which of the following orbitals described by the three quantum members will have the same energy in the absence of magnetic and electric fields (1) \[n=1,\,l=0,\,m=0\] (2) \[n=2,\,l=0,\,m=0\] (3) \[n=2,\,l=1,\,m=1\] (4) \[n=3,\,l=2,\,m=0\] (5) \[n=3,\,l=2,\,m=0\]
A.	(1) and (2)
B.	(2) and (3)
C.	(3) and (4)
D.	(4) and (5)
Answer» E.

273.	A large increase in the rate of a reaction for a rise in temperature is due to [EAMCET 1980; MP PET 1995]
A.	The decrease in the number of collisions
B.	The increase in the number of activated molecules
C.	The shortening of the mean free path
D.	The lowering of the activation energy
Answer» C. The shortening of the mean free path

274.	An aerosol is a [UPSEAT 2004]
A.	Dispersion of a solid or liquid in a gas
B.	Dispersion of a solid in a liquid
C.	Dispersion of a liquid in a liquid
D.	Solid solution
Answer» B. Dispersion of a solid in a liquid

275.	List-I and List-II contains four entries each. Entries of List-I are to be matched with some entries of List-II. One or more than one entries of List-I may have the matching with the same entries of List-II. List-I List-II [a] Rock salt structure (p) General formula is AB [b] Zinc blende structure (q) General formula is \[A{{B}_{3}}\] [c] Fluorite structure (r) General formula is \[{{A}_{2}}B\] [d] Anti fluorite structure (s) General formula is \[A{{B}_{2}}\]
A.	A-p, B-p, C-s, D-r
B.	A-q, B-q, C-p, D-s
C.	A-r, B-p, C-r, D-s
D.	A-s, B-s, C-p, D-q
Answer» B. A-q, B-q, C-p, D-s

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

Number of electron having the quantum numbers \[n=4,\,\ell =0,\,s=-\frac{1}{2}\] in \[Z{{n}^{+2}}\] ion is/are:

Which solid will have the weakest intermolecular forces?

Which of the following intermolecular forces are present in ?nylon ? 66? [JIPMER 1997]

The colloidal solution of gelatin is known [CPMT 1984]

Phenolphthalein does not act as an indicator for the titration between [NCERT 1976]

A well stoppered thermos flask contains some ice cubes. This is an example of a [AIIMS 1992]

Which of the following solutions has highest osmotic pressure [CPMT 1977]

A solid compound 'X' on heating gives \[C{{O}_{2}}\] gas and a residue. The residue mixed with water forms 'Y'. On passing an excess of \[C{{O}_{2}}\] through 'Y' water, a clear solution 'Z', is obtained. On boil. 'Z', compound 'X' is reformed. The compound 'X' is

It is possible to distinguish between optical isomers by [Manipal MEE 1995; AFMC 1995]

The isomerism exhibited by alkyl cyanide and alkyl isocyanide is [AFMC 1995, 97]

Which of the following is the best description for the behaviour of bromine in the reaction given below? \[{{H}_{2}}O+B{{r}_{2}}\to HOBr+HBr\]

A 0.1 N solution of \[N{{a}_{2}}C{{O}_{3}}\] is titrated with 0.1 N \[HCl\] solution. The best indicator to be used is [NCERT 1971; DPMT 1983; AFMC 1992; CPMT 1983, 97]

The number of significant figures in \[6.02\times {{10}^{23}}\]is

A metal surface is exposed to solar radiations [DPMT 2005]

The reaction \[C{{H}_{4}}+C{{l}_{2}}\underset{{}}{\mathop{\xrightarrow{\text{uv light}}}}\,C{{H}_{3}}Cl+HCl\] is an example of [CBSE PMT 1999, 2002]

An aqueous solution of oxalic acid dehydrate contains its 6.3 g in 250 mL. The volume of \[0.1N\] NaOH required to completely neutralize 10 mL of this solution

What will be the oxidation number of I in the \[K{{I}_{3}}\]?

Oxidation number of cobalt in \[[Co{{(N{{H}_{3}})}_{6}}]C{{l}_{2}}Br\] is -

Sodium carbonate cannot be used in place of ammonium carbonate for the precipitation of the fifth group radicals because [AIIMS 1980]

The angular momentum of an electron depends on

In a multi-electron atom, which of the following orbitals described by the three quantum members will have the same energy in the absence of magnetic and electric fields (1) \[n=1,\,l=0,\,m=0\] (2) \[n=2,\,l=0,\,m=0\] (3) \[n=2,\,l=1,\,m=1\] (4) \[n=3,\,l=2,\,m=0\] (5) \[n=3,\,l=2,\,m=0\]

A large increase in the rate of a reaction for a rise in temperature is due to [EAMCET 1980; MP PET 1995]

An aerosol is a [UPSEAT 2004]

When \[KBr\] is treated with conc. \[{{H}_{2}}S{{O}_{4}}\] a reddish-brown gas is evolved. The evolved gas is [EAMCET 1978]

When \[{{H}_{2}}S\]gas is passed through the HCl containing aqueous solutions of \[CuC{{l}_{2}}\], \[HgC{{l}_{2}}\], \[BiC{{l}_{3}}\] and \[CoC{{l}_{2}}\], which does not precipitate out [MP PMT 2002]

Which one of the following characteristics is not correct for physical adsorption [AIEEE 2003]

Maximum number of hydrogen bonding in \[{{H}_{2}}O\] is [DCE 2004; MP PET 2004; MP PMT 2004; BHU 2004]

The low density of ice compared to water is due to [Pb. CET 2004]

When \[C{{O}_{2}}\] is passed into lime water it turns milky. When excess of \[C{{O}_{2}}\] is passed, milkyness disappears because

The number of significant figures in 60.0001 is [Pb. CET 2000]

If a strip of \[Cu\] metal is placed in a solution of ferrous sulphate [NCERT 1974; CPMT 1977; MP PET 2000]

On passing \[{{H}_{2}}S\] black ppt. of II group is obtained. The mixture may not contain [CPMT 1989]

In the following sequence of reaction, identify the compounds (A), (B) (C) and (D): \[\underset{Solution}{\mathop{N{{a}_{2}}C{{O}_{3}}}}\,\xrightarrow{S{{O}_{2}}}(A)\xrightarrow{N{{a}_{2}}C{{O}_{3}}}\] \[(B)\xrightarrow[Heat]{S}(C)\xrightarrow{AgN{{O}_{3}}}(D)\]

In known elements, the maximum number is of [CPMT 1985]

The velocity of neutrons in nuclear reactor is slowed down by

The statement ? The mass of a gas dissolved in a given mass of a solvent at any temperature is proportional to the pressure of the gas above the solvent? is [AMU 2002]

Gold number is [MP PET/PMT 1988]

Which of the following ions can cause coagulation of proteins [KCET 2000]

The most basic among these hydroxides, is [MP PMT 2003]

Pb(CH3COO)2 gives?.colour with H­2S [DPMT 2000]

How much of NaOH is required to neutralize 1500 cm3 of 0.1 N HCl (At. wt. of Na = 23) [KCET (Med.) 2001]

In the chromyl chloride test, the reagent used is [AMU 1983]

Which compound shows cis-trans isomerism [CPMT 2002]

Methyl acetate and propionic acid are [RPMT 2002]

If the \[Z{{n}^{2+}}/Zn\] electrode is diluted to 100 times then the change in e.m.f. [DPMT 2005]

Least hindered rotation about carbon-carbon bond is observed in [RPMT 2000]

Which pair represents chain isomer [RPMT 2000]

Pb(CH3COO)2 gives?.colour with H2S [DPMT 2000]

276.	When \[KBr\] is treated with conc. \[{{H}_{2}}S{{O}_{4}}\] a reddish-brown gas is evolved. The evolved gas is [EAMCET 1978]
A.	Bromine
B.	Mixture of bromine and \[HBr\]
C.	\[HBr\]
D.	\[N{{O}_{2}}\]
Answer» B. Mixture of bromine and \[HBr\]

277.	When \[{{H}_{2}}S\]gas is passed through the HCl containing aqueous solutions of \[CuC{{l}_{2}}\], \[HgC{{l}_{2}}\], \[BiC{{l}_{3}}\] and \[CoC{{l}_{2}}\], which does not precipitate out [MP PMT 2002]
A.	\[CuS\]
B.	\[HgS\]
C.	\[B{{i}_{2}}{{S}_{3}}\]
D.	\[CoS\]
Answer» E.

278.	Which one of the following characteristics is not correct for physical adsorption [AIEEE 2003]
A.	Adsorption on solids is reversible
B.	Adsorption increases with increase in temperature
C.	Adsorption is spontaneous
D.	Both enthalpy and entropy of adsorption are negative
Answer» C. Adsorption is spontaneous

279.	Maximum number of hydrogen bonding in \[{{H}_{2}}O\] is [DCE 2004; MP PET 2004; MP PMT 2004; BHU 2004]
A.	1
B.	2
C.	3
D.	4
Answer» E.

280.	The low density of ice compared to water is due to [Pb. CET 2004]
A.	Induced dipole-induced dipole interactions
B.	Dipole-induced dipole interaction
C.	Hydrogen bonding interactions
D.	Dipole-dipole interactions
Answer» D. Dipole-dipole interactions

281.	When \[C{{O}_{2}}\] is passed into lime water it turns milky. When excess of \[C{{O}_{2}}\] is passed, milkyness disappears because
A.	Reaction is reversed
B.	Water soluble \[Ca{{(HC{{O}_{3}})}_{2}}\] is formed
C.	Vaporisable calcium derivative is formed
D.	None of these
Answer» C. Vaporisable calcium derivative is formed

282.	The number of significant figures in 60.0001 is [Pb. CET 2000]
A.	5
B.	6
C.	3
D.	2
Answer» C. 3

283.	If a strip of \[Cu\] metal is placed in a solution of ferrous sulphate [NCERT 1974; CPMT 1977; MP PET 2000]
A.	Copper will precipitate out
B.	Iron will precipitate out
C.	Copper will dissolve
D.	No reaction will take place
Answer» E.

284.	On passing \[{{H}_{2}}S\] black ppt. of II group is obtained. The mixture may not contain [CPMT 1989]
A.	\[P{{b}^{++}}\]
B.	\[C{{d}^{++}}\]
C.	\[H{{g}^{++}}\]
D.	\[C{{u}^{++}}\]
Answer» C. \[H{{g}^{++}}\]

285.	In the following sequence of reaction, identify the compounds (A), (B) (C) and (D): \[\underset{Solution}{\mathop{N{{a}_{2}}C{{O}_{3}}}}\,\xrightarrow{S{{O}_{2}}}(A)\xrightarrow{N{{a}_{2}}C{{O}_{3}}}\] \[(B)\xrightarrow[Heat]{S}(C)\xrightarrow{AgN{{O}_{3}}}(D)\]
A.	\[N{{a}_{2}}S{{O}_{3}},NaHS{{O}_{3}},N{{a}_{2}}S,A{{g}_{2}}S\]
B.	\[NaHS{{O}_{3}},N{{a}_{2}}S{{O}_{3}},N{{a}_{2}}{{S}_{2}}{{O}_{3}},A{{g}_{2}}S\]
C.	\[NaHS{{O}_{3}},N{{a}_{2}}S{{O}_{4}},N{{a}_{2}}S,A{{g}_{2}}O\]
D.	\[N{{a}_{2}}S{{O}_{3}},N{{a}_{2}}S{{O}_{4}},N{{a}_{2}}{{S}_{2}}{{O}_{3}},Ag\]
Answer» C. \[NaHS{{O}_{3}},N{{a}_{2}}S{{O}_{4}},N{{a}_{2}}S,A{{g}_{2}}O\]