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Tardigrade
Question
Chemistry
Solid A reacts with strong NaOH(aq) liberating a foul smelling gas B which spontaneously bum in air giving smoky rings A and B are respectively
Q. Solid
A
reacts with strong
N
a
O
H
(
a
q
)
liberating a foul smelling gas
B
which spontaneously bum in air giving smoky rings
A
and
B
are respectively
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212
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The p-Block Elements - Part2
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A
P
re
d
and
P
H
3
11%
B
P
w
hi
t
e
and
P
H
3
75%
C
S
and
H
2
S
8%
D
P
w
hi
t
e
and
H
2
S
6%
Solution:
White phosphorus (A)
P
4
(
s
)
+
3
N
a
O
H
(
a
q
)
+
3
H
2
O
(
l
)
→
Phosphine (B)
P
H
3
(
g
)
+
3
N
a
H
2
P
O
2
(
a
q
)
Phosphine has unpleasant 'odour like that of garlic or rotten fish. It bums in air to give clouds of
P
4
O
10
which act as smoke screens.