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

The solubility of $$\mathrm{Ag}_2 \mathrm{C}_2 \mathrm{O}_4$$ is $$2 \times 10^{-4} \mathrm{~mol} \mathrm{~L}^{-1}$$ at $$298 \mathrm{~K}$$. What is it's solubility product?

A
$$1.6 \times 10^{-6}$$
B
$$3.2 \times 10^{-11}$$
C
$$1.6 \times 10^{-11}$$
D
$$3.2 \times 10^{-6}$$
2
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
$$4 \times 10^{-2}$$
3
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
$$7.0 \times 10^{-7} \mathrm{~mol} \mathrm{~dm}^{-3}$$
4
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
$$\propto=\sqrt{\frac{\mathrm{K}_{\mathrm{a}}}{\mathrm{V}}}$$
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