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Byju's Answer
Standard XII
Chemistry
Reactivity with Halogens and Hydrogen (Group 2)
... K 2 Cr 2 ...
Question
.
.
.
K
2
C
r
2
O
7
+
.
.
.
H
C
l
→
.
.
.
K
C
l
+
.
.
.
C
r
C
l
3
+
.
.
.
H
2
O
+
.
.
.
C
l
2
After balancing the above reaction what will be the sum of coefficients of the products ?
A
10
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B
12
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C
13
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D
14
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E
15
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Solution
The correct option is
D
14
The balanced chemical reaction is given as follow:
K
2
C
r
2
O
7
+
14
H
C
l
→
2
K
C
l
+
2
C
r
C
l
3
+
7
H
2
O
+
3
C
l
2
Sum of coefficients of the products
=
2
+
2
+
7
+
3
=
14
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Similar questions
Q.
K
2
C
r
2
O
7
+
H
C
l
→
C
r
C
l
3
+
H
2
O
+
C
l
2
+
K
C
l
Balance in basic medium by ion-electron identity spectator ion.
Q.
What is the sum of the coefficients of the products for the following reaction, after balancing?
.
.
.
K
2
C
r
2
O
7
+
.
.
.
H
C
l
→
.
.
.
K
C
l
+
.
.
.
C
r
C
l
3
+
.
.
.
H
2
O
+
.
.
.
C
l
2
Q.
What is the sum of the coefficients of the products for the following reaction?
K
2
C
r
2
O
7
+
H
C
l
→
K
C
l
+
C
r
C
l
3
+
H
2
O
+
C
l
2
Q.
Potassium dichromate and concentrated
H
C
l
are heated together.
K
2
C
r
2
O
7
+
H
C
l
⟶
K
C
l
+
.
.
.
.
+
.
.
.
.
.
.
+
H
2
O
Q.
Balance the chemical equation given below and identify the coefficients of HCl and Cl
2
respectively.
K
2
C
r
2
O
7
+
H
C
l
→
K
C
l
+
C
r
C
l
3
+
H
2
O
+
C
l
2
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