1
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
If a $${}_b^aX$$ species emits first a position, then two a and two b particles and in the last, one a, is also emitted and gets converts to $${}_d^c$$Y species. So correct relation is
A
c = a $$-$$ 12, d = b $$-$$ 5
B
c = a $$-$$ 5, d = b $$-$$ 1
C
c = a $$-$$ 6, d = b $$-$$ 0
D
c = a $$-$$ 4, d = b $$-$$ 2
2
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+
3
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
Percentage of Se in peroxidase anhydrous enzyme is 0.5% by weight (at. wt. = 78.4) then minimum molecular weight of peroxide anhydrous enzyme is
A
1.568 $$ \times $$ 104
B
1.568 $$ \times $$ 103
C
15.68
D
2.136 $$ \times $$ 104
4
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
Molarity of liquid HCl, if density of solution is 1.17 g/ce is
A
36.5
B
18.25
C
32.05
D
42.10
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