1
AP EAPCET 2022 - 4th July Morning Shift
MCQ (Single Correct Answer)
+1
-0

Equal volumes of 0.5 N acetic acid and 0.5 N sodium acetate are mixed. What is the pH of resultant solution? ($$\mathrm{p} K_a$$ of acetic acid $$=4.75$$)

A
4.85
B
4.65
C
4.75
D
7.0
2
AP EAPCET 2022 - 4th July Morning Shift
MCQ (Single Correct Answer)
+1
-0

What are $$X$$ and $$Y$$ respectively in the following reactions?

$$\begin{aligned} & \underline{X}+D_2 \mathrm{O} \longrightarrow C_2 D_2+P \\ & \underline{Y}+D_2 \mathrm{O} \longrightarrow C D_4+Q \end{aligned}$$

A
$$\mathrm{AlCl}_3, \mathrm{CaCl}_2$$
B
$$\mathrm{Be}_2 \mathrm{C}, \mathrm{Al}_4 \mathrm{C}_3$$
C
$$\mathrm{Al}_4 \mathrm{C}_3, \mathrm{CaC}_2$$
D
$$\mathrm{CaC}_2, \mathrm{Al}_4 \mathrm{C}_3$$
3
AP EAPCET 2022 - 4th July Morning Shift
MCQ (Single Correct Answer)
+1
-0

Assertion (A) MgSO$$_4$$ is readily soluble in water.

Reason (R) The greater hydration enthalpy of Mg$$^{2+}$$ ions overcome is lattice enthalpy.

A
A and R both are correct and R is the correct explanation of A .
B
A and R both are correct but R is not the correct explanation of A .
C
A is correct but R is not correct.
D
A is incorrect but R is correct.
4
AP EAPCET 2022 - 4th July Morning Shift
MCQ (Single Correct Answer)
+1
-0

Identify A and B from the following reaction,

$$\mathrm{NaNO}_3 \xrightarrow{\Delta} x A+y B$$

A
$$\mathrm{NaNO}_2, \mathrm{O}_2$$
B
$$\mathrm{Na}_2 \mathrm{O}, \mathrm{NO}_2$$
C
$$\mathrm{Na}_2 \mathrm{O}, \mathrm{NO}$$
D
$$\mathrm{Na}, \mathrm{NO}_2$$
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