# Reaction quotient for the reaction, ${\mathrm{N}}_{2}\left(\mathrm{g}\right)+3{\mathrm{H}}_{2}\left(\mathrm{g}\right)⇌2{\mathrm{NH}}_{3}\left(\mathrm{g}\right)$ is given by , $\mathrm{Q}$ $=$ $\frac{{\left[{\mathrm{NH}}_{3}\right]}^{2}}{\left[{\mathrm{N}}_{2}\right]{\left[{\mathrm{H}}_{2}\right]}^{3}}$ .The reaction will proceed from right to left if Kc value is: 1. Q<Kc  2. Q=0 3. Q>Kc  4. Q=Kc

Subtopic:  Introduction To Equilibrium |
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The ratio of $${{K_{P}}\over{K_{C}}}$$ for the reaction

$\mathrm{CO}\left(\mathrm{g}\right)+\frac{1}{2}{\mathrm{O}}_{2}\left(\mathrm{g}\right)⇌{\mathrm{CO}}_{2}\left(\mathrm{g}\right)$ $\mathrm{is:}$

 1 (RT)1/2 2 (RT)-1/2 3 RT 4 1

Subtopic:  Kp, Kc & Factors Affecting them |
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The pair that represents a buffer solution among the following pairs is?

1. ${\mathrm{HNO}}_{3}$ and ${\mathrm{NH}}_{4}{\mathrm{NO}}_{3}$

2. $\mathrm{HCl}$ and $\mathrm{KCl}$

3. ${\mathrm{HNO}}_{2}$ and ${\mathrm{NaNO}}_{2}$

4. $\mathrm{NaOH}$ and $\mathrm{NaCl}$

Subtopic:  Buffer |
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The mixture that can act like a buffer is:

1.

2. ${\mathrm{NH}}_{4}{\mathrm{NO}}_{3}+{\mathrm{NH}}_{4}\mathrm{OH}$

3.

4. All of the above

Subtopic:  Buffer |
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An acid buffer solution can be prepared by mixing the solutions of:

1. Sodium chloride and sodium hydroxide

2. Sulphuric acid and sodium sulphate

3. Ammonium chloride and ammonium nitrate

4. Ammonium acetate and acetic acid

Subtopic:  Buffer |
76%
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A buffer solution can be prepared from a mixture of:

I. Sodium acetate and acetic acid in water

II. Sodium acetate and hydrochloric acid in water

III. Ammonia and ammonium chloride in water

IV. Ammonia and sodium hydroxide in water.

1. I, III, IV

2. III, IV

3. I, II, IV

4. I,  III

Subtopic:  Buffer |
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The basic buffer solution among the following is:

1. ${\mathrm{NH}}_{4}\mathrm{Cl}+{\mathrm{NH}}_{4}\mathrm{OH}$

2. $\mathrm{NaCl}+\mathrm{NaOH}$

3. ${\mathrm{NH}}_{4}\mathrm{Cl}+{\mathrm{CH}}_{3}\mathrm{COOH}$

4. ${\mathrm{CH}}_{3}\mathrm{COONa}+{\mathrm{CH}}_{3}\mathrm{COOH}$

Subtopic:  Buffer |
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Conjugate base of hydrazoic acid is:

1. $${HN_3}^-$$${}_{}^{}$

2. $$N_2^-$$   ${\mathrm{}}_{}^{}$

3. $$N_3^-$$
4. $${N^3}^-$$

Subtopic:  Acids & Bases - Definitions & Classification |
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Out of  the reagents ${\mathrm{NH}}_{4}\mathrm{Cl}$ and aqueous ${\mathrm{NH}}_{3}$ will precipitate

1. ${\mathrm{Ca}}^{2+}, {\mathrm{Al}}^{3+}$

2.

3.

4.

Subtopic:  Common Ion Effect |
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The pH of 0.1 M solution of the following compounds increases in the order of -

1. $\mathrm{NaCl}<{\mathrm{NH}}_{4}\mathrm{Cl}<\mathrm{NaCN}<\mathrm{HCl}$

2. $\mathrm{HCl}<{\mathrm{NH}}_{4}\mathrm{Cl}<\mathrm{NaCl}<\mathrm{NaCN}$

3. $\mathrm{NaCN}<{\mathrm{NH}}_{4}\mathrm{Cl}<\mathrm{NaCl}<\mathrm{HCl}$

4. $\mathrm{HCl}<\mathrm{NaCl}<\mathrm{NaCN}<{\mathrm{NH}}_{4}\mathrm{Cl}$

Subtopic:  pH calculation |
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