1
NEET 2016 Phase 2
MCQ (Single Correct Answer)
+4
-1
The percentage of pyridine (C5H5N) that forms pyridinium ion (C5H5N+H) ina 0.10 M aqueous pyridine solution (Kb for C5H5N = 1.7 $$ \times $$ 10$$-$$9) is
A
0.0060%
B
0.013%
C
0.77%
D
1.6%
2
NEET 2016 Phase 2
MCQ (Single Correct Answer)
+4
-1
Which of the following fluro-compounds is most likely to behave as a Lewis base ?
A
BF3
B
PF3
C
CF4
D
SiF4
3
NEET 2016 Phase 2
MCQ (Single Correct Answer)
+4
-1
The solubility of AgCl(s) with solubility product 1.6 $$ \times $$ 10$$-$$10 in 0.1 M NaCl solution would be
A
1.26 $$ \times $$ 10$$-$$5 M
B
1.6 $$ \times $$ 10$$-$$9 M
C
1.6 $$ \times $$ 10$$-$$11 M
D
zero
4
NEET 2016 Phase 1
MCQ (Single Correct Answer)
+4
-1
MY and NY3, two nearly insoluble salts, have the same Ksp values of 6.2 $$ \times $$ 10$$-$$13 at room temperature. Which statement would be true in regard to MY and NY3?
A
The salts MY and NY3 are more soluble in 0.5 M KY than in pure water.
B
The addition of the salt of KY to solution of MY and NY3 will have no effect on their solubilities.
C
The molar solubilities of MY and NY3 in water are identical.
D
The molar solubility of MY in water is less than that of NY3.
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