1
MHT CET 2021 23th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

A weak monobasic acid is $$3.0 \%$$ dissociated in it's $$0.04 \mathrm{~M}$$ solution. What is the dissociation constant of acid?

A
$$9 \times 10^{-4}$$
B
$$3.6 \times 10^{-5}$$
C
$$3 \times 10^{-2}$$
D
$$4 \times 10^{-2}$$
2
MHT CET 2021 22th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

Solubility product of $$\mathrm{AgBr}$$ is $$4.9 \times 10^{-13}$$. What is its solubility?

A
$$2.4 \times 10^{-7} \mathrm{~mol} \mathrm{~dm}^{-3}$$
B
$$3.2 \times 10^{-7} \mathrm{~mol} \mathrm{~dm}^{-3}$$
C
$$4.9 \times 10^{-7} \mathrm{~mol} \mathrm{~dm}^{-3}$$
D
$$7.0 \times 10^{-7} \mathrm{~mol} \mathrm{~dm}^{-3}$$
3
MHT CET 2021 22th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following is NOT a correct mathematical equation for Ostwald dilution law?

A
$$\propto=\sqrt{\frac{\mathrm{K}_{\mathrm{a}}}{\mathrm{c}}}$$
B
$$K=\frac{\alpha^2}{V}$$
C
$$\mathrm{K}=\propto^2 \mathrm{c}$$
D
$$\propto=\sqrt{\frac{\mathrm{K}_{\mathrm{a}}}{\mathrm{V}}}$$
4
MHT CET 2021 22th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

A weak monobasic acid is $$10 \%$$ dissociated in $$0.05 \mathrm{~M}$$ solution. What is its percentage dissociation in $$0.10 \mathrm{~M}$$ solution?

A
5.27%
B
7.17%
C
10.3%
D
4.5%
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