1
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Which of the following molecules has the maximum dipole moment ?
A
CO2
B
CH4
C
NH3
D
NF3
2
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Which one of the following species has plane triangular shape ?
A
N3
B
NO3$$-$$
C
NO2$$-$$
D
CO2
3
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Which of the following statements is correct for the spontaneous adsorption of a gas?
A
$$\Delta $$S is negative and, therefore $$\Delta $$H should be highly positive.
B
$$\Delta $$S is negative and therefore, $$\Delta $$H should be highly negative.
C
$$\Delta $$S is positive and therefore, $$\Delta $$H should be negative .
D
$$\Delta $$S is positive and therefore, $$\Delta $$H should also be highly positive.
4
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
For the reaction, $${X_2}{O_{4\left( l \right)}}\,\, \to \,\,2X{O_{2(g)}}$$
$$\Delta $$U = 2.1 kcal, $$\Delta $$S = 20 cal K$$-$$1 at 300 K
A
2.7 kcal
B
$$-$$ 2.7 kcal
C
9.3 kcal
D
$$-$$ 9.3 kcal
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