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Byju's Answer
Standard VIII
Chemistry
Exothermic Reactions
Zn+Hcl———- ...
Question
Zn+Hcl---------->ZnCl2+H2. what is the nature of chemical reaction ?
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Solution
This is a single displacement reaction as Zn replaces hydrogen in HCl.
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Similar questions
Q.
For,
Z
n
(
s
)
+
2
H
C
l
(
a
q
)
⇌
Z
n
C
l
2
(
a
q
)
+
H
2
(
g
)
what will be the expression of
K
c
:
Q.
Z
n
+
2
H
C
l
→
Z
n
C
l
2
+
H
2
↑
The above reaction is an example of:
Q.
The given below equation is an example of a balanced chemical equation.
Z
n
+
H
C
l
→
Z
n
C
l
2
+
H
2
Q.
Assertion :When
H
2
S
(
g
)
is passed into aqueous
Z
n
C
l
2
, solution,
Z
n
S
is precipitated. Reason:
Z
n
S
is insoluble in dil.
H
C
l
.
Q.
Write the limitation of reaction given in question 2.
Z
n
+
2
H
C
l
→
Z
n
C
l
2
+
H
2
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