Question 1: Palette 1/8

BITSAT 2025 MCQ

Among aqueous 1 N solutions, the pH of HCl , $\mathrm{HNO}_2$ and $\mathrm{CH}_3 \mathrm{COOH}$ follows the order

A

$\mathrm{HCl}<\mathrm{HNO}_2<\mathrm{CH}_3 \mathrm{COOH}$

B

$\mathrm{CH}_3 \mathrm{COOH}<\mathrm{HNO}_2<\mathrm{HCl}$

C

$\mathrm{HNO}_2<\mathrm{CH}_3 \mathrm{COOH}<\mathrm{HCl}$

D

$\mathrm{HCl}<\mathrm{CH}_3 \mathrm{COOH}<\mathrm{HNO}_2$

Question 2: Palette 2/8

BITSAT 2025 MCQ

30 mL of 0.1 M acetic acid is mixed with 60 mL of 0.1 M sodium acetate. If $K_a=1.8 \times 10^{-5}$ what will be the pH of the solution?

A

4.6

B

5.2

C

4.8

D

5.04

Question 3: Palette 3/8

BITSAT 2024 MCQ

The pH of 1 N aqueous solutions of HCl , $ \mathrm{CH}_{3} \mathrm{COOH} $ and HCOOH follows the order:

A

$ \mathrm{HCl} > \mathrm{HCOOH} > \mathrm{CH}_{3} \mathrm{OOH} $

B

$ \mathrm{HCl}=\mathrm{HCOOH} > \mathrm{CH}_{3} \mathrm{COOH} $

C

$ \mathrm{CH}_{3} \mathrm{COOH} > \mathrm{HCOOH} > \mathrm{HCl} $

D

$ \mathrm{CH}_{3} \mathrm{COOH}=\mathrm{HCOOH} > \mathrm{HCl} $

Question 4: Palette 4/8

BITSAT 2024 MCQ

20 mL of 0.1 M acetic acid is mixed with 50 mL of potassium acetate. $ K_{\alpha} $ of acetic acid $ =1.8 \times 10^{-5} $ at $ 27^{\circ} \mathrm{C} $. Calculate the concentration of potassium acetate if pH of mixture is 4.8 .

A

0.1 M

B

0.04 M

C

0.4 M

D

0.02 M

Question 5: Palette 5/8

BITSAT 2023 MCQ

The concentration of hydrogen ion in a sample of soft drink is $3.8 \times 10^{-3} \mathrm{M}$. What is its $\mathrm{pH}$ ?

A

3.84

B

2.42

C

4.44

D

1.42

Question 6: Palette 6/8

BITSAT 2023 MCQ

If the ionic product of $\mathrm{Ni}(\mathrm{OH})_2$ is $1.9 \times 10^{-15}$, then the molar solubility of $\mathrm{Ni}(\mathrm{OH})_2$ in $1.0 \mathrm{~M} \mathrm{~NaOH}$ is

A

$2.9 \times 10^{-18} \mathrm{~M}$

B

$1.9 \times 10^{-13} \mathrm{~M}$

C

$1.9 \times 10^{-15} \mathrm{~M}$

D

$2.9 \times 10^{-14} \mathrm{~M}$

Question 7: Palette 7/8

BITSAT 2022 MCQ

100 mL of 2 M of formic acid (pK_a = 3.74) is neutralise by NaOH, at the equivalence point pH is

A

7

B

6

C

9.5

D

8.87

Question 8: Palette 8/8

BITSAT 2021 MCQ

The solubility of Pb(OH)₂ in water is 6.7 $\times$ 10^$-$6 M. Its solubility in a buffer solution of pH = 8 would be :

A

1.2 $\times$ 10^$-$2

B

1.6 $\times$ 10^$-$3

C

1.6 $\times$ 10^$-$2

D

1.2 $\times$ 10^$-$3