1
AP EAPCET 2024 - 22th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
100 mL of $0.1 \mathrm{M} \mathrm{H} A$ (weak acid) and 100 mL of 0.2 M $\mathrm{Na} A$ are mixed. What is the pH of resultant solution? ( $K_{\mathrm{a}}$ of $\mathrm{H} A$ is $10^{-5}: \log 2=0.3$ )
A
4.7
B
5.0
C
5.3
D
4.0
2
AP EAPCET 2024 - 22th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following when added to 20 mL of a 0.01 M solution of HCl would decrease its pH ?

A
20 mL of 0.02 M HCl
B
20 mL of 0.005 M HCl
C
20 mL of 0.01 M HCl
D
40 mL of 0.005 M HCl
3
AP EAPCET 2024 - 21th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The solubility of barium phosphate of molar mass ' $M$ ' $\mathrm{g} \mathrm{mol}^{-1}$ in water is $x \mathrm{~g}$ per 100 mL at 298 K . Its solubility product is $1.08 \times\left(\frac{x}{M}\right)^a \times(10)^b$. The values of $a$ and $b$ respectively are

A
7,5
B
5,7
C
5,5
D
7,7
4
AP EAPCET 2024 - 21th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
At $T(\mathrm{~K})$, the solubility product of $A X$ is $10^{-10}$. What is the molar solubility of $A X$ in 0.1 MHX ?
A
$10^{-5}$
B
$10^{-10}$
C
$10^{-9}$
D
$10^{-8}$
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