1
KCET 2026
MCQ (Single Correct Answer)
+1
-0
For the reversible reaction,
$\text{N}_{2(g)} + 3\text{H}_{2(g)} \rightleftharpoons 2\text{NH}_{3(g)}$
When the partial pressure is measured in atmosphere, the value of $K_p$ at $500^\circ\text{C}$ is $1.44 \times 10^{-5}$. The value of $K_c$ when the concentration is expressed in mol L$^{-1}$ is:
A
$\dfrac{1.44 \times 10^{-5}}{(0.082 \times 500)^{-2}}$
B
$\dfrac{1.44 \times 10^{-5}}{(8.314 \times 773)^{-2}}$
C
$\dfrac{1.44 \times 10^{-5}}{(0.082 \times 773)^{2}}$
D
$\dfrac{1.44 \times 10^{-5}}{(0.082 \times 773)^{-2}}$
2
KCET 2026
MCQ (Single Correct Answer)
+1
-0
A $0.15$ mole of pyridinium chloride has been added to $500\text{ cm}^3$ of $0.2$ M pyridine solution (a base). Assuming there is no change in volume upon mixing(Given: $pK_b$ of pyridine = 8.82), the pH of the resulting solution is
A
$5$
B
$6$
C
$7$
D
$8$
3
KCET 2026
MCQ (Single Correct Answer)
+1
-0
$a\text{C}_2\text{O}_4^{2-} + b\text{MnO}_4^- + c\text{H}^+ \rightarrow x\text{Mn}^{2+} + y\text{H}_2\text{O} + z\text{CO}_2$
$a$ and $x$ respectively are
A
$5, 2$
B
$4, 1$
C
$3, 2$
D
$4, 2$
4
KCET 2026
MCQ (Single Correct Answer)
+1
-0
Given below are two statements.
Statement-I: In $\text{H}_2\text{O}_2$, each oxygen atom is assigned an oxidation number of $-1$, in $\text{RbO}_2$ each oxygen atom is assigned an oxidation number of $-\dfrac{1}{2}$.
Statement-II: Representation of $\text{HAuCl}_4$ and $\text{MnO}_2$ in stock notation is $\text{HAu(III)Cl}_4$ and $\text{Mn(II)O}_2$, respectively.
Examine the above statements and choose the correct answer.
A
Both Statement I and Statement II are correct
B
Both Statement I and Statement II are incorrect
C
Statement I is correct but Statement II is incorrect
D
Statement I is incorrect but Statement II is correct