1
NEET 2016 Phase 1
MCQ (Single Correct Answer)
+4
-1
Consider the molecules CH4, NH3 and H2O.

Which of the given statements is false?
A
The H $$-$$ O $$-$$ H bond angle in H2O is smaller than the H $$-$$ N $$-$$ H bond angle in NH3.
B
The H $$-$$ C $$-$$ H bond angle in CH4 is larger than the H $$-$$ N $$-$$ H bond angle in NH3.
C
The H $$-$$ C $$-$$ H bond angle in CH4, the H $$-$$ N $$-$$ H bond angle in NH3, and the H $$-$$ O $$-$$ H bond angle in H2O are all greater than 90o.
D
The H $$-$$ O $$-$$ H bond angle in H2O is larger than the H $$-$$ C $$-$$ H bond angle in CH4.
2
NEET 2016 Phase 1
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Equal moles of hydrogen and oxygen gases are placed in a container with a pin-hole through which both can escape. What fraction of the oxygen escapes in the time required for onehalf of the hydrogen to escape?
A
3/8
B
1/2
C
1/8
D
1/4
3
NEET 2016 Phase 1
MCQ (More than One Correct Answer)
+4
-1
The correct thermodynamic conditions for the spontaneous reaction at all temperatures is
A
$$\Delta $$H < 0 and $$\Delta $$S > 0
B
$$\Delta $$H < 0 and $$\Delta $$S < 0
C
$$\Delta $$H < 0 and $$\Delta $$S = 0
D
$$\Delta $$H > 0 and $$\Delta $$S < 0
4
NEET 2016 Phase 1
MCQ (Single Correct Answer)
+4
-1
Consider the following liquid-vapour equilibrium.
Liquid $$\rightleftharpoons$$ Vapour
Which of the following relations is correct ?
A
$${{d\ln P} \over {d{T^2}}} = {{ - \Delta {H_v}} \over {{T^2}}}$$
B
$${{d\ln P} \over {dT}} = {{\Delta {H_v}} \over {R{T^2}}}$$
C
$${{d\ln G} \over {d{T^2}}} = {{\Delta {H_v}} \over {R{T^2}}}$$
D
$${{d\ln P} \over {dT}} = {{ - \Delta {H_v}} \over {RT}}$$
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