Byju's Answer
Standard XII
Chemistry
Uses of Alkali Metals
When fluorine...
Question
When fluorine reacts with hot and conc. NaOH then products obtained are:
A
N
a
F
+
H
2
O
+
O
2
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B
N
a
F
+
H
2
O
+
O
F
2
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C
H
F
+
N
a
F
+
H
2
O
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D
N
a
F
+
H
F
+
O
2
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Solution
The correct option is
A
N
a
F
+
H
2
O
+
O
2
F
2
+
2
N
a
O
H
→
2
N
a
F
+
H
2
O
+
1
2
O
2
hot-conc
N
a
F
,
H
2
O
a
n
d
O
2
a
r
e
f
o
r
m
e
d
Suggest Corrections
1
Similar questions
Q.
When
F
2
reacts with hot and concentrated alkali, then which of the following will be obtained?
(i)
O
F
2
(ii)
O
2
(iii)
H
2
O
(iv)
N
a
F
Q.
The enthalpy of the reaction is maximum in which of the following reaction ?
1) NaOH +HBr ------>NaBr+h2o
2)NaOH+HF--------->NaF +h2O
Q.
One mole of fluorine is reacted with two moles of hot and concentrated
K
O
H
. The products formed are
K
F
,
H
2
O
and
O
2
The molar ratio of
K
F
,
H
2
O
and
O
2
, respectively is;
Q.
Arrange the following in increasing order of solubility in
H
2
O
?
N
a
F
,
M
g
O
,
A
l
N
Q.
H
F
(
a
q
)
+
N
a
O
H
→
N
a
F
(
a
q
)
+
H
2
O
(
l
)
Δ
H
=
−
68.6
k
J
/
m
o
l
The high negative value of heat of reaction is due to:
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