1
MHT CET 2024 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0
 

Calculate $\left[\mathrm{H}_3 \mathrm{O}^{+}\right]$ of a monobasic acid if it is $0.04 \%$ dissociated in 0.05 M solution.

A
$1 \times 10^{-5}$
B
$1.5 \times 10^{-5}$
C
$2.0 \times 10^{-5}$
D
$3.0 \times 10^{-5}$
2
MHT CET 2024 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Calculate the solubility product of sparingly soluble salt BA at 300 K if its solubility is $9.1 \times 10^{-3} \mathrm{moldm}^{-3}$ at same temperature.

A
$9.635 \times 10^{-5}$
B
$9.012 \times 10^{-5}$
C
$8.281 \times 10^{-5}$
D
$7.816 \times 10^{-5}$
3
MHT CET 2024 2nd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which from following species acts as base ${ }^1$, according to Bronsted-Lowry theory?

$$\mathrm{HCl}+\mathrm{NH}_3 \text { 目的 } \mathrm{NH}_4^{+}+\mathrm{Cl}^{-} $$

A
$\mathrm{Cl}^{-}$
B
$\mathrm{NH}_3$
C
$\mathrm{NH}_4^{+}$
D
$\mathrm{HCl}$
4
MHT CET 2024 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

What is the ratio of concentration of salt to concentration of weak acid in buffer solution to maintain its pH value $7.2\left(\mathrm{pK}_{\mathrm{a}}=6.2\right)$.

A
1.5
B
10.0
C
5.0
D
8.5
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