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Law of Mass Action

10 ml of a co...

Question

10 ml of a compound containing N and O is mixed with 30 ml of H2 to produce H2O and 10 ml N2. Molecular formula of compound if both reactants reacts completely
N20
NO2
N2O3
N2O5

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Solution

The correct answer is option C – N2O3

According to the given statement, the equation will be -

10 ml of NxOy + 30 ml of H2 gives 10 ml of N2 + H2O

Assuming that 1 mol of the compound is used, the partially balanced equation will be 1NxOy + 3H2 gives 1N2 + H2O

By balancing the N, H, and O atoms on both the sides, we get the equation as – N2O3 + 3H2 ⟶ N2 + 3H2O

Therefore, the formula of the compound is N2O3.

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