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Q.

AgNO3+Cu→Cu(NO3)2+Ag


Which of the following is the correct balanced equation for the given equation?


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a

3AgNO3+Cu→Cu(NO3)2+Ag 

b

AgNO3+4Cu→Cu(NO3)2+Ag

c

AgNO3+2Cu→Cu(NO3)2+Ag

d

2AgNO3+Cu→Cu(NO3)2+2Ag

answer is B.

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Detailed Solution

detailed_solution_thumbnail
In the given reaction NO3 is not balanced. Hence multiply by 2 to AgNO3
2AgNO3+Cu→Cu(NO3)2+Ag
Multiply by 2 to Ag on the product side to balance the Ag element,
2AgNO3+Cu→Cu(NO3)2+2Ag
Balancing both the sides with equal moles reactant and product.

Ag= 1×2

=2

Ag = 1×2

=2

N = 1×2

= 2

N = 2

O = 3×2

= 6

O = 6

Cu = 1

Cu = 1

 
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