1
MHT CET 2023 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A buffer solution is prepared by mixing 0.2 M sodium acetate and 0.1 M acetic acid. If pK$$_a$$ for acetic acid is 4.7, find the pH.

A
3.0
B
4.0
C
5.0
D
2.0
2
MHT CET 2023 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which salt from following forms aqueous solution having $$\mathrm{pH}$$ less than 7 ?

A
$$\mathrm{CH}_3 \mathrm{COONa}$$
B
$$\mathrm{Na}_2 \mathrm{SO}_4$$
C
$$\mathrm{CuSO}_4$$
D
$$\mathrm{Na}_2 \mathrm{CO}_3$$
3
MHT CET 2023 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Solubility of a salt $$\mathrm{A}_2 \mathrm{~B}_3$$ is $$1 \times 10^{-3} \mathrm{~mol} \mathrm{~dm}^{-3}$$. What is the value of its solubility product?

A
$$1.08 \times 10^{-13}$$
B
$$8.1 \times 10^{-15}$$
C
$$2.7 \times 10^{-15}$$
D
$$2.0 \times 10^{-13}$$
4
MHT CET 2021 21th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

The $$\left[\mathrm{OH}^{-}\right]$$ in a solution is $$1 \times 10^{-12} \mathrm{~mol} \mathrm{~dm}{ }^{-3}$$. What is the concentration of $$\mathrm{H}^{+}$$ ions?

A
$$0.1 \mathrm{~mol} \mathrm{~dm}^{-3}$$
B
$$1.0 \mathrm{~mol} \mathrm{~dm}^{-3}$$
C
$$2.0 \mathrm{~mol} \mathrm{~dm}^{-3}$$
D
$$0.01 \mathrm{~mol} \mathrm{~dm}^{-3}$$
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