1
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
Which of the following is isoelectronic?
A
CO2, NO2
B
NO2$$-$$, CO2
C
CN$$-$$, CO
D
SO2, CO2
2
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
In X - H --- Y, X and Y both are electronegative elements. Then
A
electron density on X will increase and on H will decrease
B
in both electron density will increase
C
in both electron density will decrease
D
on X electron density will decrease and on H increases.
3
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
In which of the following bond angle is maximum ?
A
NH3
B
NH4+
C
PCl3
D
SCl2
4
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
Nitrogen forms N2, but phosphorus does not form P2, however, it converts P4, reason is
A
triple bond present between phosphorus atom
B
p$$\pi $$ $$-$$ p$$\pi $$ bonding is weak
C
p$$\pi $$ $$-$$ p$$\pi $$ bonding is strong
D
multiple bonds form easily.
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