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1
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
$$\propto=\sqrt{\frac{\mathrm{K}_{\mathrm{a}}}{\mathrm{V}}}$$
2
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%
3
MHT CET 2021 22th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

The dissociation constant of weak monobasic acid is 2.7 $$\times$$ 10$$^{-5}$$. If degree of dissociation of acid is 3 $$\times$$ 10$$^{-2}$$, what is the concentration of acid?

A
0.24 M
B
0.03 M
C
0.3 M
D
0.11 M
4
MHT CET 2021 22th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

The solubility product of a sparingly soluble salt AX$$_2$$ is 3.2 $$\times$$ 10$$^{-8}$$. What is it's solubility in mol dm$$^{-3}$$ ?

A
$$2.8\times10^{-4}$$
B
$$1.6\times10^{-5}$$
C
$$2.0\times10^{-3}$$
D
$$4.0\times10^{-4}$$
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