1
AP EAPCET 2025 - 23rd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

At 298 K , the value of $K_p$ for $\mathrm{N}_2 \mathrm{O}_4(g) \rightleftharpoons 2 \mathrm{NO}_2(g)$ is 0.113 atm . The partial pressure of $\mathrm{N}_2 \mathrm{O}_4$ at equilibrium is 0.2 atm . What is the partial pressure (in atm) of $\mathrm{NO}_2$ equilibrium?

A

0.05

B

0.075

C

0.30

D

0.15

2
AP EAPCET 2025 - 23rd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

$\mathrm{H}_2 \mathrm{O}_2$ reduces $\mathrm{KMnO}_4$ in acidic medium to ' $x$ ' and in basic medium to ' $y$ '. What are $x$ and $y$ ?

A

$x=\mathrm{MnO}_2, y=\mathrm{Mn}^{2+}$

B

$x=\mathrm{Mn}^{2+}, y=\mathrm{MnO}_2$

C

$x=\mathrm{MnO}_4^{2-}, y=\mathrm{Mn}^{2+}$

D

$x=\mathrm{MnO}_2, y=\mathrm{MnO}_4^{2-}$

3
AP EAPCET 2025 - 23rd May Evening Shift
MCQ (Single Correct Answer)
+1
-0
Which chloride does not exist as hydrate?
A

$\mathrm{MgCl}_2$

B

$\mathrm{CaCl}_2$

C

LiCl

D

KCl

4
AP EAPCET 2025 - 23rd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Identify the incorrect statement about the group 13 elements.

A

Nature of aqueous solution of borax is alkaline.

B

Orthoboric acid is a weak tribasic acid.

C

Metaboric acid on heating gives an acidic oxide.

D

$\mathrm{LiBH}_4$ acts as a reducing agent.