1
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
Which one of the following species is diamagnetic in nature?
A
$$He_2^+$$
B
H2
C
$$H_2^+$$
D
$$H_2^-$$
2
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
Based on lattice energy and other considerations which one of the following alkali metal chlorides is expected to have the highest melting point.
A
LiCl
B
NaCl
C
KCl
D
RbCl
3
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
Which of the following statements in relation to the hydrogen atom is correct?
A
3s orbital is lower in energy than 3p orbital
B
3p orbital is lower in energy than 3d orbital
C
3s and 3p orbitals are of lower energy than 3d orbital
D
3s, 3p and 3d orbitals all have the same energy
4
AIEEE 2004
MCQ (Single Correct Answer)
+4
-1
One mole of magnesium nitride on the reaction with an excess of water gives
A
one mole of ammonia
B
two moles of nitric acid
C
two moles of ammonia
D
one mole of nitric acid
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