The following solutions were prepared by mixing different volumes of NaOH and HCl of different concentrations :

A)  $60$ $mL$ $\frac{M}{10}HCI$  $+$ $40$ $mL$ $\frac{M}{10}NaOH$
B)   $55$ $mL$ $\frac{M}{10}HCI$  $+$ $45$ $mL$ $\frac{M}{10}NaOH$
C)  $75$ $mL$ $\frac{M}{5}HCI$  $+$ $25$ $mL$ $\frac{M}{5}NaOH$
D)  $100$ $mL$ $\frac{M}{10}HCI$  $+$ $100$ $mL$ $\frac{M}{10}NaOH$

pH of which one of them will be equal to 1?

1. B
2. A
3. D
4. C

Subtopic:  pH calculation |
51%
From NCERT
NEET - 2018
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The solubility of BaSO4 in water is $2.42$ $×$ ${10}^{-3}$ g/ litre at 298 K. The value of the solubility product will be: (Molar mass of BaSO4 = 233 gmol–1)

 1 1.08 × 10–10 mol2 L–2 2 1.08 × 10–12 mol2 L–2 3 1.08 × 10–14 mol2 L–2 4 1.08 × 10–8 mol2 L–2
Subtopic:  Solubility Product |
61%
From NCERT
NEET - 2018
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Mark the conditions that favour the maximum product formation in the given reaction.
${A}_{2}$ $\left(g\right)$  $+$ ${B}_{2}$ $\left(g\right)$  $⇋$ ${X}_{2}$ $\left(g\right),$ ${∆}_{r}H$ $=$ $-X$ $k$ $J$ 

1. Low temperature and High pressure
2. Low temperature and Low pressure
3. High temperature and High pressure
4. High temperature and Low pressure

Subtopic:  Le Chatelier's principle |
77%
From NCERT
NEET - 2018
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The concentration of the Ag+ ions in a saturated solution of Ag2C2O4 is 2.2 x 10-4 M. The solubility product of Ag2C2O4 is

1. 2.42 x 10-8

2. 2.66 x 10-12

3. 4.5 x 10-11

4. 5.3 x 10-12

Subtopic:  Solubility Product |
53%
From NCERT
NEET - 2017
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The equilibrium of three reactions with their respective equilibrium constants are given below,

$$\begin{array}{lc} \mathrm{N}_2+3 \mathrm{H}_2 \rightleftharpoons 2 \mathrm{NH}_3 & \mathrm{~K}_1 \\ \mathrm{~N}_2+\mathrm{O}_2 \rightleftharpoons 2 \mathrm{NO} & \mathrm{K}_2 \\ \mathrm{H}_2+\frac{1}{2} \mathrm{O}_2 \rightleftharpoons \mathrm{H}_2 \mathrm{O} & \mathrm{K}_3 \end{array}$$

The equilibrium constant (K) of the following reaction will be :
$2{\mathrm{NH}}_{3}+\frac{5}{2}{\mathrm{O}}_{2}$ $\stackrel{\mathrm{K}}{⇄}$ $2\mathrm{NO}+3{\mathrm{H}}_{2}\mathrm{O}$

1. $$\frac{K_{2}K_{3}^{3}}{K_{1}}$$
2. $$\frac{K_{2}K_{3}}{K_{1}}$$
3. $$\frac{K_{2}^{3}K_{3}}{K_{1}}$$
4. $$\frac{K_{3}^{3}K_{1}}{K_{2}}$$

Subtopic:  Kp, Kc & Factors Affecting them |
80%
From NCERT
NEET - 2017
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The concentration of Ag+ ions in a saturated solution of Ag2C2Ois 2.2 × 10–4 mol L–1.
The solubility product of Ag2C2O4 is:

 1 2.66×10–12 2 4.5×10–11 3 5.3×10–12 4 2.42×10–8
Subtopic:  Solubility Product |
60%
From NCERT
NEET - 2017
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A 20-litre container at 400 K contains CO2 (g) at pressure 0.4 atm and an excess of SrO (neglecting the volume of solid SrO). The volume of the container is now decreased by moving the movable piston fitted in the container.
The maximum volume of the container, when the pressure of CO2 attains its maximum value will be:
(Given that: SrCO3(s) ⇋ SrO(s) + CO2(g) , Kp = 1.6 atm)

 1 10 litre 2 2 litre 3 4 litre 4 5 litre
Subtopic:  Kp, Kc & Factors Affecting them |
61%
From NCERT
NEET - 2017
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The solubility of AgCl (s) with solubility product 1.6 x 10-10 in 0.1 M NaCl solution would be

(1) 1.26 x 10-5 M

(2) 1.6 x 10-9 M

(3) 1.6 x 10-11 M

(4) zero

Subtopic:  Solubility Product |
74%
From NCERT
NEET - 2016
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Which of the following fluoro-compounds is most likely to behave as a Lewis base?
(1) BF3

(2) PF3

(3) CF4

(4) SiF4

Subtopic:  Acids & Bases - Definitions & Classification |
57%
From NCERT
NEET - 2016
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The percentage of pyridine (C5H5N) that forms pyridinium ion (C5H5N+H) In A 0.10 M aqueous pyridine solution (Kb for C5H5N = 1.7 × 10–9) is?

1. 0.0060%

2. 0.013%

3. 0.77%

4. 1.6%

Subtopic:  Ionisation Constant of Acid, Base & Salt |
73%
From NCERT
NEET - 2016