1
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
Which of the following has p$$\pi $$ $$-$$ d$$\pi $$ bonding?
A
NO3$$-$$
B
SO32$$-$$
C
BO33$$-$$
D
CO32$$-$$
2
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
In NO3$$-$$ ion number of bond pair and lone pair of electrons on nitrogen atom are
A
2, 2
B
3, 1
C
1, 3
D
4, 0
3
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
4
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
Unit of entropy is
A
J K$$-$$1 mol$$-$$1
B
J mol$$-$$1
C
J$$-$$1 K$$-$$1 mol$$-$$1
D
J K mol$$-$$1
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