1
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
The number of atoms in 0.1 mol of a triatomic gas is (NA = 6.02 $$ \times $$ 1023 mol$$-$$1)
A
6.026 $$ \times $$ 1022
B
1.806 $$ \times $$ 1023
C
3.600 $$ \times $$ 1023
D
1.800 $$ \times $$ 1022
2
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
Which one of the following species does not exist under normal conditions?
A
Be2+
B
Be2
C
B2
D
Li2
3
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
In which of the following pairs of molecules/ ions, the central atoms have sp2 hybridisation ?
A
NO$$_2^{ - }$$ and NH3
B
BF3 and NO$$_2^{ - }$$
C
NH$$_2^{ - }$$ and H2O
D
BF3 and NH$$_2^{ - }$$
4
AIPMT 2010 Prelims
MCQ (Single Correct Answer)
+4
-1
In which one of the following species the central atom has the type of hybridization which is not the same as that present in the other three ?
A
SF4
B
I3$$-$$
C
SbCl52$$-$$
D
PCl5