1
BITSAT 2022
MCQ (Single Correct Answer)
+3
-1

What is [NH$$_{4}^+$$] in a solution that is 0.02 M NH3 0.01 M KOH ? [Kb(NH3) = 1.8 $$\times$$ 10$$-$$5]

A
3.6 $$\times$$ 10$$-$$5 M
B
1.8 $$\times$$ 10$$-$$5 M
C
0.9 $$\times$$ 10$$-$$5 M
D
7.2 $$\times$$ 10$$-$$5 M
2
BITSAT 2022
MCQ (Single Correct Answer)
+3
-1

For an isomerisation reaction A $$\rightleftharpoons$$ B, the temperature dependence of equilibrium constant is given by

loge K = 4.0 $$-$$ $$\frac{2000}{T}$$

The value of $$\Delta$$S$$^\circ$$ at Hook is, therefore

A
4R
B
5R
C
400R
D
2000R
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