1
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
H2O is dipolar, whereas BeF2 is not. It is because
A
the electronegativity of F is greater than that of O
B
H2O involves hydrogen bonding whereas BeF2 is a discrete molecule
C
H2O is linear and BeF2 is angular
D
H2O is angular and BeF2 is linear.
2
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
Among the following, the pair in which the two species are not isostructural is
A
SiF4 and SF4
B
IO3$$-$$ and XeO3
C
BH4$$-$$ and NH4+
D
PF6$$-$$ and SF6
3
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
In BrF3 molecule, the lone pairs occupy equatorial positions to minimize
A
lone pair - bond pair repulsion only
B
bond pair - bond pair repulsion only
C
lone pair - lone pair repulsion and lone pair - bond pair repulsion
D
lone pair - lone pair repulsion only.
4
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
The work done during the expansion of a gas from a volume of 4 dm3 to 6 dm3 against a constant external pressure of 3 atm is (1 L atm = 101.32 J)
A
$$-$$ 6 J
B
$$-$$ 608 J
C
+ 304 J
D
$$-$$ 304 J
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