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

Find solubility of $$\mathrm{PbI}_2$$ if its solubility product is $$7.0 \times 10^{-9}$$.

A
$$1.21 \times 10^{-3} \mathrm{~mol} \mathrm{~L}^{-1}$$
B
$$3.228 \times 10^{-3} \mathrm{~mol} \mathrm{~L}^{-1}$$
C
$$2.831 \times 10^{-3} \mathrm{~mol} \mathrm{~L}^{-1}$$
D
$$1.811 \times 10^{-3} \mathrm{~mol} \mathrm{~L}^{-1}$$
2
MHT CET 2023 9th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is the $$\mathrm{pH}$$ of a solution containing $$2.2 \times 10^{-6} \mathrm{M}$$ hydrogen ions?

A
6.34
B
5.66
C
4.34
D
3.80
3
MHT CET 2023 9th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is the concentration of $$\left[\mathrm{H}_3 \mathrm{O}^{+}\right]$$ ion in $$\mathrm{mol} ~\mathrm{L}^{-1}$$ of $$0.001 ~\mathrm{M}$$ acetic acid $$(\alpha=0.134)$$ ?

A
$$1.34 \times 10^{-4}$$
B
$$1.54 \times 10^{-4}$$
C
$$1.80 \times 10^{-4}$$
D
$$1.70 \times 10^{-4}$$
4
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
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