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1
MHT CET 2025 23rd April Morning Shift
MCQ (Single Correct Answer)
+1
-0

Solubility of binary sparingly soluble salt is $1.12 \times 10^{-4} \mathrm{~g} / \mathrm{dm}^3$. Calculate its solubility product (molar mass of salt $=112 \mathrm{~g} \mathrm{~mol}^{-1}$ )

A
$1 \times 10^{-3}$
B
$1 \times 10^{-6}$
C
$1 \times 10^{-9}$
D
$1 \times 10^{-12}$
2
MHT CET 2025 22nd April Evening Shift
MCQ (Single Correct Answer)
+1
-0

Identify conjugate acid-base pair from following equilibrium reaction.

$$ \mathrm{HSO}_{3(\mathrm{aq})}^{-}+\mathrm{H}_3 \mathrm{O}_{(\mathrm{aq})}^{+} \rightleftharpoons \mathrm{H}_2 \mathrm{SO}_3+\mathrm{H}_2 \mathrm{O} $$

A
$\quad \mathrm{H}_2 \mathrm{SO}_3$ and $\mathrm{HSO}_3^{-}$
B
$\mathrm{HSO}_3^{-}$and $\mathrm{H}_3 \mathrm{O}^{+}$
C
$\mathrm{H}_2 \mathrm{SO}_3$ and $\mathrm{H}_2 \mathrm{O}$
D
$\mathrm{H}_3 \mathrm{O}^{+}$and $\mathrm{H}_2 \mathrm{SO}_3$
3
MHT CET 2025 22nd April Evening Shift
MCQ (Single Correct Answer)
+1
-0

A weak monoacidic base dissociates to $1.5 \%$ in 0.001 M solution at 298 K . Calculate the dissociation constant of weak base.

A
$2.25 \times 10^{-7}$
B
$3.05 \times 10^{-7}$
C
$2.5 \times 10^{-5}$
D
$3.725 \times 10^{-6}$
4
MHT CET 2025 22nd April Evening Shift
MCQ (Single Correct Answer)
+1
-0

The solubility product of NiS is $4.9 \times 10^{-5}$ at 298 K . Calculate its solubility in $\mathrm{mol} \mathrm{dm}^{-3}$ at the same temperature?

A
$1.69 \times 10^{-3}$
B
$7.0 \times 10^{-3}$
C
$2.45 \times 10^{-3}$
D
$6.18 \times 10^{-3}$
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