Question

Consider the following reaction.

$Cu(N{O}_3{)}_2\to CuO+N{O}_2+O_2$
Which of the following statement is correct?

• A. Mass of products = mass of reactants
• B. Number of atoms on either side of the reaction are equal
• C. Mass of reactants is not equal to mass of products
• D. Number of atoms on product side is more than the reactant side

Answer 1

Answer: (C), (D)

The correct options are
C

Mass of reactants is not equal to mass of products

D

Number of atoms on product side is more than the reactant side

In the reaction $Cu(N{O}_3{)}_2\to CuO+N{O}_2+O_2$ , the no of atoms on reactant side (Cu- 1, N-2, O-6) is not equal to those on the product side (Cu- 1, N-1,O-4). So, the number of atoms on the product side are greater than reactant side.

Therefore, mass of reactants≠ mass of products.