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1
MHT CET 2024 11th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which among the following is the conjugate base of $\mathrm{HClO}_4$ ?

A
$\mathrm{ClO}_4^{2-}$
B
$\mathrm{ClO}_4$
C
$\mathrm{HCl}$
D
$\mathrm{ClO}_4^{-}$
2
MHT CET 2024 11th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is pH of a centimolar solution of $\mathrm{H}_2 \mathrm{SO}_4$ ?

A
1.7
B
2.0
C
3.2
D
4.5
3
MHT CET 2024 11th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A buffer solution is prepared by mixing 0.01 M HCN and 0.02 MNaCN . If $\mathrm{K}_{\mathrm{a}}$ for HCN is $6.6 \times 10^{-10}$, what is the concentration of $\mathrm{H}^{+}$ions in solution?

A
$3.3 \times 10^{-6} \mathrm{M}$
B
$3.3 \times 10^{-10} \mathrm{M}$
C
$1.32 \times 10^{-6} \mathrm{M}$
D
$1.32 \times 10^{-10} \mathrm{M}$
4
MHT CET 2024 11th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A monobasic acid is $5 \%$ dissociated in its 0.02 M solution. Calculate the dissociation constant of acid.

A
$2 \times 10^{-2}$
B
$4 \times 10^{-4}$
C
$5 \times 10^{-5}$
D
$2.5 \times 10^{-4}$
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