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p-Block Elements: Groups 15 and 16
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Sulphur allotropes, SO2, sulphuric acid, oxyacids of sulphur
JEE Main level
Single correct option
Difficulty 2 of 3
pn150
Copper reacts with hot concentrated sulphuric acid to give
A
CuSO
X
4
,
SO
X
2
and
H
X
2
O
B
CuSO
X
4
,
H
X
2
S
and
H
X
2
O
C
CuSO
X
4
and
H
X
2
D
CuO
and
SO
X
3
Answer: A
Cu lies below hydrogen so it does not liberate H2. Hot concentrated H2SO4 oxidises it:
Cu
+
2
H
X
2
SO
X
4
CuSO
X
4
+
SO
X
2
+
2
H
X
2
O
.
Practice p-Block Elements: Groups 15 and 16
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