1
AP EAPCET 2024 - 22th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
A compound is formed by atoms of $A, B$ and $C$. Atoms of $C$ form hcp lattice. Atoms of $A$ occupy $50 \%$ of octahedral voids and atoms of $B$ occupy $2 / 3$ rd of tetrahedral voids. What is the molecular formula of the solid?
A
$A_3 B_8 C_6$
B
$A_2 B_8 C_6$
C
$A B_4 C_3$
D
$A_5 B_8 C_6$
2
AP EAPCET 2024 - 22th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

At $300 \mathrm{~K}, 6 \mathrm{~g}$ of urea was dissolved in 500 mL of water. What is the osmotic pressure (in atm) of resultant solution?

$$ \begin{aligned} & \left(R=0.082 \mathrm{~L}^{\operatorname{atm~K}}{ }^{-1} \mathrm{~mol}^{-1}\right) \\ & (\mathrm{C}=12 ; \mathrm{N}=14 ; \mathrm{O}=16 ; \mathrm{H}=1) \end{aligned} $$

A
0.492
B
2.46
C
4.92
D
49.2
3
AP EAPCET 2024 - 22th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
In water, which of the following gases has the highest Henry's law constant at 293 K ?
A
$\mathrm{N}_2$
B
$\mathrm{O}_2$
C
He
D
$\mathrm{H}_2$
4
AP EAPCET 2024 - 22th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Consider the cell reaction at 300 K .

$$ A(s)+B^{2+}(a q) \rightleftharpoons A^{2+}(a q)+B(s) $$

Its $E^{\ominus}$ is 1.0 V . The $\Delta_r H^{\ominus}$ of the reaction is $-163 \mathrm{kJmol}^{-1}$.

What is $\Delta_r s^{\ominus}$ (in $\mathrm{JK}^{-1}$ ) of the reaction?

$$ \left(F=96500 \mathrm{C} \mathrm{~mol}^{-1}\right) $$

A
10
B
100
C
1000
D
10000
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