1
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
Hydrogen ion concentration in mol / L in a solution of pH = 5.4 will be :
A
3.98 $$\times$$ 10-6
B
3.68 $$\times$$ 10-6
C
3.88 $$\times$$ 106
D
3.98 $$\times$$ 108
2
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
$$H_2^-$$
3
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
Due to the presence of an unpaired electron, free radicals are:
A
Chemically reactive
B
Chemically inactive
C
Anions
D
Cations
4
AIEEE 2005
MCQ (Single Correct Answer)
+4
-1
Reaction of one molecule of HBr with one molecule of 1,3-butadiene at 40oC gives predominantly
A
3-bromobutene under kinetically controlled conditions
B
1-bromo-2-butene under thermodymically controlled conditions
C
3-bromobutene under thermodynamically controlled conditions
D
1-bromo-2-butene under kinetically controlled conditions
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