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Chemistry
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Hydrogen
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JEE Advanced Questions
Hydrogen
Chemistry
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JEE Mains
JEE Advanced
AIIMS
Easy Qs
Med Qs
Hard Qs
>
Which of the following combination will produce
H
2
gas?
A
A
u
metal and
N
a
C
N
(
a
q
)
in the presence of air
B
C
u
metal and
c
o
n
c
.
H
N
O
3
C
F
e
metal and
c
o
n
c
.
H
N
O
3
D
Z
n
metal and
N
a
O
H
(
a
q
)
Hard
JEE Advanced
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