1
MHT CET 2021 24th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

Identify conjugate acid-base pair in the following reaction.

$$ \mathrm{HCl}_{(\mathrm{aq})}+\mathrm{H}_2 \mathrm{O}_{(l)} \rightleftharpoons \mathrm{H}_3 \mathrm{O}_{(\mathrm{aq})}^{+}+\mathrm{Cl}_{(\mathrm{aq})}^{-}$$

A
$$ \mathrm{H}_3 \mathrm{O}_{(\mathrm{aq})}^{+} \text {and } \mathrm{Cl}_{(\mathrm{aq})}^{-} $$
B
$$ \mathrm{H}_3 \mathrm{O}_{(\mathrm{aq})}^{+} \text {and } \mathrm{H}_2 \mathrm{O}_{(l)} $$
C
$$ \mathrm{HCl}_{(\mathrm{aq})} \text { and } \mathrm{H}_2 \mathrm{O}_{(l)} $$
D
$$ \mathrm{Cl}_{(\mathrm{aq})}^{-} \text {and } \mathrm{H}_2 \mathrm{O}_{(l)} $$
2
MHT CET 2021 23rd September Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which among the following salts undergoes hydrolysis?

A
$$\mathrm{Na}_2 \mathrm{SO}_4$$
B
$$\mathrm{KCl}$$
C
$$\mathrm{NH}_4 \mathrm{Cl}$$
D
$$\mathrm{KNO}_3$$
3
MHT CET 2021 23rd September Evening Shift
MCQ (Single Correct Answer)
+1
-0

At $$298 \mathrm{~K}, 0.1 \mathrm{M}$$ solution of acetic acid is $1.34 \%$ ionized. What is the dissociation constant of acetic acid?

A
$$1.4 \times 10^{-3}$$
B
$$1.8 \times 10^{-5}$$
C
$$1.6 \times 10^{-3}$$
D
$$1.34 \times 10^{-5}$$
4
MHT CET 2021 23rd September Evening Shift
MCQ (Single Correct Answer)
+1
-0

$$\mathrm{pH}$$ of soft drink is 3.6. Calculate the concentration of hydrogen ions in it.

A
$$2.51 \times 10^{-4} \mathrm{M}$$
B
$$2.3 \times 10^{-3} \mathrm{M}$$
C
$$2.0 \times 10^{-3} \mathrm{M}$$
D
$$2.81 \times 10^{-4} \mathrm{M}$$
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