1
MHT CET 2024 9th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Calculate the pH of buffer solution containing 0.04 M NaF and $0.02 \mathrm{~M~HF}\left[\mathrm{pK}_a=3 \cdot 142\right]$.

A
4.5
B
3.4
C
2.6
D
5.1
2
MHT CET 2024 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

What is the pOH of millimolar solution of $\mathrm{Ca}(\mathrm{OH})_2$ ?

A
2.7
B
10.3
C
12.3
D
11.3
3
MHT CET 2024 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Molar conductivity of 0.02 M weak acid is $7.92 \Omega^{-1} \mathrm{~cm}^2 \mathrm{~mol}^{-1}$ and its molar conductivity at infinite dilution is $232.7 \Omega^{-1} \mathrm{~cm}^2 \mathrm{~mol}^{-1}$. Calculate degree of dissociation of weak acid.

A
0.0112
B
0.0341
C
0.0694
D
0.292
4
MHT CET 2024 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which among the following is correct conjugate acid base pair for the equation stated below?

$$\mathrm{HCl}+\mathrm{NH}_3 \rightleftharpoons \mathrm{NH}_4^{+}+\mathrm{Cl}^{-}$$

A
$\mathrm{Cl}^{-}$and $\mathrm{NH}_4^{+}$
B
$\mathrm{HCl}$ and $\mathrm{NH}_3$
C
$\mathrm{NH}_4^{+}$and $\mathrm{NH}_3$
D
$\mathrm{NH}_4^{+}$and HCl
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