1
NEET 2023 Manipur
MCQ (Single Correct Answer)
+4
-1

An acidic buffer is prepared by mixing :

A
weak acid and it's salt with strong base
B
equal volumes of equimolar solutions of weak acid and weak base
C
strong acid and it's salt with strong base
D
strong acid and it's salt with weak base (The pK$$_a$$ of acid = pK$$_b$$ of the base)
2
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1

0.01 M acetic acid solution is 1% ionised, then pH of this acetic acid solution is :

A
1
B
3
C
2
D
4
3
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1

KH value for some gases at the same temperature 'T' are given :

Gas K$$_H$$/k bar
Ar 40.3
CO$$_2$$ 1.67
HCHO 1.83 $$\times$$ 10$$^{ - 5}$$
CH$$_4$$ 0.413

where KH is Henry's Law constant in water. The order of their solubility in water is :

A
HCHO < CH4 < CO2 < Ar
B
Ar < CO2 < CH4 < HCHO
C
Ar < CH4 < CO2 < HCHO
D
HCHO < CO2 < CH4 < Ar
4
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1

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
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