# When equal volumes of 0.1 M NaOH and 0.01 M HCl are mixed, the pH of the resulting solution will be: 1. 12.65 2. 2.0 3. 7.0 4. 1.04

Subtopic:  pH calculation |
73%
From NCERT
NEET - 2015
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An acidic buffer cannot be formed by which of the following combinations is:

1. ${\mathrm{HClO}}_{4}$ $\mathrm{and}$ ${\mathrm{NaClO}}_{4}$
2. ${\mathrm{CH}}_{3}\mathrm{COOH}$ $\mathrm{and}$ ${\mathrm{CH}}_{3}\mathrm{COONa}$
3. ${\mathrm{H}}_{2}{\mathrm{CO}}_{3}$ $\mathrm{and}$ ${\mathrm{Na}}_{2}{\mathrm{CO}}_{3}$
4. ${\mathrm{H}}_{3}{\mathrm{PO}}_{4}$ $\mathrm{and}$ ${\mathrm{Na}}_{3}{\mathrm{PO}}_{4}$

Subtopic:  Buffer |
67%
From NCERT
NEET - 2015
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If the equilibrium constant for N2(g) + O2 (g) ⇄ 2NO(g) is K, the equilibrium constant for $$\frac{1}{2}$$N2(g) + $$\frac{1}{2}$$O2(g) ⇄ NO(g) will be?

1. ${K}^{\frac{1}{2}}$

2. $\frac{1}{2}K$

3. K

4. ${K}^{2}$

Subtopic:  Kp, Kc & Factors Affecting them |
84%
From NCERT
NEET - 2015
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Aqueous solution of which of the following compounds is the best conductor of electric current?
1. Acetic acid, $$\mathrm{C_{2} H_{4} O_{2}}$$${}_{}$
2. Hydrochloric acid, $$\mathrm{HCl}$$
3. Ammonia, $$\mathrm{N H_{3}}$$${}_{}$
4. Fructose, $$\mathrm{C_{6} H_{12} O_{6}}$$${}_{}$

Subtopic:  Ionisation Constant of Acid, Base & Salt |
85%
From NCERT
NEET - 2015
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The value of the equilibrium constant for a particular reaction is 1.6 × 1012. When the system is in equilibrium, it will include:
1. All reactants
2. Mostly reactants
3. Mostly products
4. Similar amounts of reactants and products

Subtopic:  Kp, Kc & Factors Affecting them |
71%
From NCERT
NEET - 2015
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The Ksp of Ag2CrO4, AgCl, AgBr, and Agl are respectively, 1.1 × 10–12, 1.8 × 10–10, 5.0 × 10–13, 8.3 × 10–17. Which one of the following salts will precipitate last if ${\mathrm{AgNO}}_{3}$ solution is added to the solution containing equal moles of NaCl, NaBr, Nal, and Na2CrO4?

1. Agl

2. AgCl

3. AgBr

4. Ag2CrO4

Subtopic:  Solubility Product |
52%
From NCERT
NEET - 2015
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Which of the following salts will give the highest pH in water?
1. KCl
2. NaCl
3. Na2CO3
4. CuSO4

Subtopic:  pH calculation |
75%
From NCERT
AIPMT - 2014
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For the reversible reaction:
N2(g) + 3H2(g) $$\rightleftharpoons$$ 2NH3(g) + heat

The equilibrium shifts in a forward direction:

1. by increasing the concentration of $N{H}_{3}\left(g\right)$
2. by decreasing the pressure.
3. by decreasing the concentration of ${N}_{2}\left(g\right)$ $and$ ${H}_{2}\left(g\right)$
4. by increasing pressure and decreasing temperature.

Subtopic:  Le Chatelier's principle |
84%
From NCERT
AIPMT - 2014
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For a given exothermic reaction, Kp and Kp are the equilibrium constants at temperatures T1 and Trespectively. Assuming that the heat of reaction is constant in temperatures range between T1 and T2, it is a readily observation that:
1. ${K}_{p}>{K}_{p}^{\text{'}}$
2. ${K}_{p}<{K}_{p}^{\text{'}}$
3. ${K}_{p}={K}_{p}^{\text{'}}$
4. ${K}_{p}=\frac{1}{{K}_{p}^{\text{'}}}$

Subtopic:  Kp, Kc & Factors Affecting them |
55%
AIPMT - 2014
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Which of these is least likely to act as Lewis base?
1. F
2. BF3
3. PF3
4. CO

Subtopic:  Acids & Bases - Definitions & Classification |
74%
From NCERT
AIPMT - 2013
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