1
AP EAPCET 2024 - 18th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Identify the incorrect statements form the following.

I. $ \Delta S_{\text {pum }}=\left(\Delta S_{\text {nal }}+\Delta S_{\text {um }}\right) $

II. $A(\bar{i} \rightarrow A(\phi)$ : For this process entropy change decreases.

III. Entropy units are $\mathrm{JK} \mathrm{mol}^{-1}$.

A
1,18 only
B
1,11 only
C
L, II, Ill only
D
II, III anly
2
AP EAPCET 2024 - 18th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
At $T(\mathrm{~K}), K_c$ for the reaction $A_2(g) \rightleftharpoons B_2(g)$ is 99.0 . Two moles of $A_2(s)$ was heated to $T(\mathrm{~K})$ in a 1 L . closed flask to reach the above equilibrium. What are the concentrations (in mol $\mathrm{L}^{-1}$ ) of $A_2(g)$ and $B_2(g)$ respectively at equilibrium?
A
$1,86,0.0187$
B
$1.98,0.02$
C
$0.0187,1,86$
D
$0.02,1.98$
3
AP EAPCET 2024 - 18th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
At $27^{\circ} \mathrm{C}$, the degree of dissociation of weak acid ( $\mathrm{H} A$ ) in its 0.5 M aqueous solution is $1 \%$. Its $K_e$, value is approximately
A
$5 \times 10^{-6}$
B
$5 \times 10^{-5}$
C
$5 \times 10^{-6}$
D
$5 \times 10^{-8}$
4
AP EAPCET 2024 - 18th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
Aluminium carbide on reaction with $\mathrm{D}_2 \mathrm{O}$ gives $\mathrm{Al}(O D)_3$ and ' $X^{\prime}$. What is ' $X^{\prime}$ '?
A
$\mathrm{C}_2 \mathrm{D}_2$
B
$\mathrm{C}_2 \mathrm{D}_4$
C
$\mathrm{C}_2 \mathrm{D}_4$
D
$\mathrm{CD}_4$
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