Question

Which of the following equation does not obey the law of conservation of mass?
a. 4H +O2--------> 2H2O
b. 2H+O2---------->H2O
c. H2 + O----------> 2H2O
d. Both (b) and (C)​

Answer 1

The correct answer is option (d) Both [b] and [c]

Answer 2

Answer:

d

Explanation:

As we know that law of conservation of mass states that :-

In a reaction the mass of the reactants will be eqal to the products i.e. the mass will not be altered.

Here

Considering option(b)

Mass of reactants=

2(1)+2(16)=2+32=34g

Mass of product=

2(1)+16=2+16=18g

Here mass of product<mass of reactants.Hence,the law is violated.

Now next considering option(c) the same thing is done in this also and we will find that the law is violated .

Thus, (d) is the apt answer