1
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
The correct order of increasing bond length of C $$-$$ H, C $$-$$ O, C $$-$$ C and C$$=$$C is
A
C $$-$$ H < C$$=$$C < C $$-$$ O < C $$-$$ C
B
C $$-$$ C < C$$=$$C < C $$-$$ O < C $$-$$ H
C
C $$-$$ O < C $$-$$ H < C $$-$$ C < C$$=$$C
D
C $$-$$ H < C $$-$$ O < C $$-$$ C < C$$=$$C
2
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
Which of the two ions from the list given below that have the geometry that is explained by the same hybridization of orbitals, NO$$_2^ - $$. NO$$_3^ - $$, NH$$_2^ - $$, NH$$_4^ + $$, SCN$$-$$?
A
NO$$_2^ - $$ and NO$$_3^ - $$
B
NH$$_4^ + $$ and NO$$_3^ - $$
C
SCN$$-$$ and NH$$_2^ - $$
D
NO$$_2^ - $$ and NH$$_2^ - $$
3
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
Which of the following is correct option for free expansion of an ideal gas under adiabatic condition ?
A
q = 0, $$\Delta $$T $$ \ne $$ 0, w = 0
B
q $$ \ne $$ 0,   $$\Delta $$T = 0,   w = 0
C
q = 0,   $$\Delta $$T = 0,   w = 0
D
q = 0,  $$\Delta $$T < 0, w $$ \ne $$ 0
4
AIPMT 2011 Prelims
MCQ (Single Correct Answer)
+4
-1
Enthalpy change for the reaction,
4H(g)  $$ \to $$  2H2(g) is $$-$$869.6 kJ
The dissociation energy of H $$-$$ H bond is
A
434.8 kJ
B
$$-$$ 869.6 kJ
C
+ 434.8 kJ
D
+ 217.4 kJ