1
NEET 2024
MCQ (Single Correct Answer)
+4
-1
Change Language

Consider the following reaction in a sealed vessel at equilibrium with concentrations of $$\mathrm{N}_2=3.0 \times 10^{-3} \mathrm{M}, \mathrm{O}_2=4.2 \times 10^{-3} \mathrm{M}$$ and $$\mathrm{NO}=2.8 \times 10^{-3} \mathrm{M}$$.

$$2 \mathrm{NO}_{(\mathrm{g})} \rightleftharpoons \mathrm{N}_{2(\mathrm{~g})}+\mathrm{O}_{2(\mathrm{~g})}$$

If $$0.1 \mathrm{~mol} \mathrm{~L} \mathrm{~L}^{-1}$$ of $$\mathrm{NO}_{(\mathrm{g})}$$ is taken in a closed vessel, what will be degree of dissociation ($$\alpha$$) of $$\mathrm{NO}_{(\mathrm{g})}$$ at equilibrium?

A
0.00889
B
0.0889
C
0.8889
D
0.717
2
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1
Change Language

For a weak acid HA, the percentage of dissociation is nearly 1% at equilibrium. If the concentration of acid is 0.1 mol L$$^{-1}$$, then the correct option for its K$$_a$$ at the same temperature is :

A
$$1\times10^{-4}$$
B
$$1\times10^{-6}$$
C
$$1\times10^{-5}$$
D
$$1\times10^{-3}$$
3
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1
Change Language

Kp for the following reaction is 3.0 at 1000 K.

CO2(g) + C(s) $$\rightleftharpoons$$ 2CO(g)

What will be the value of Kc for the reaction at the same temperature?

(Given : R = 0.083 L bar K$$-$$1 mol$$-$$1)

A
3.6
B
0.36
C
3.6 $$\times$$ 10$$-$$2
D
3.6 $$\times$$ 10$$-$$3
4
NEET 2022 Phase 1
MCQ (Single Correct Answer)
+4
-1
Change Language

3O2(g) $$\rightleftharpoons$$ 2O3(g)

for the above reaction at 298 K, Kc is found to be 3.0 $$\times$$ 10$$-$$59. If the concentration of O2 at equilibrium is 0.040 M then concentration of O3 in M is

A
4.38 $$\times$$ 10$$-$$32
B
1.9 $$\times$$ 10$$-$$63
C
2.4 $$\times$$ 1031
D
1.2 $$\times$$ 1021
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