1
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
PbO2  $$ \to $$ PbO; $$\Delta $$G298 < 0
SnO2 $$ \to $$ SnO;  $$\Delta $$G298 > 0

Most probable oxidation state of Pb and Sn will be
A
Pb4+, Sn4+
B
Pb4+, Sn2+
C
Pb2+, Sn2+
D
Pb2+, Sn4+
2
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
Enthalpy of CH4 + $${1 \over 2}$$ O2 $$ \to $$ CH3OH is negative. If enthalpy of combustion of CH4 and CH3OH are x and y respectively. Then which relation is correct?
A
x > y
B
x < y
C
x = y
D
x3 y
3
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
In HS$$-$$, I$$-$$, R $$-$$ NH2, NH3 order of proton accepting tendency will be
A
I$$-$$ > NH3 > R $$-$$ NH2 > HS$$-$$
B
NH3 > R $$-$$ NH2 > HS$$-$$ > I$$-$$
C
R $$-$$ NH2 > NH3 > HS$$-$$ > I$$-$$
D
HS$$-$$ > R $$-$$ NH2 > NH3 > I$$-$$
4
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
Solubility of M2S salt is 3.5 $$ \times $$ 10$$-$$6 then find out solubility product.
A
1.7 $$ \times $$ 10$$-$$6
B
1.7 $$ \times $$ 10$$-$$16
C
1.7 $$ \times $$ 10$$-$$18
D
1.7 $$ \times $$ 10$$-$$12
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