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Integer Answer Type Questions for JEE: Hydrogen | Chapter-wise Tests for JEE Main & Advanced PDF Download

Q.1. A commercial sample of hydrogen peroxide is labelled as 10 volume. Its percentage strength is nearly

Ans. 1%
10 volume solution of H2O2 is 3.035% solution i.e., 3.035 g of H2O2 is present in 100ml of the solution.


Q.2. The amount of H2O2 present in 1 L of 1.5 N H2O2 solution is

Ans. 25.5
Strength = Normality x Eq. mass
= 1.5 x 17 (eq. mass of H2O2)
= 25.5 gL-1


Q.3. The nuclei of tritium (H3) atom would contain neutrons.

Ans. 2
Number of neutrons = Mass number – Atomic number = 3 – 1 = 2


Q.4. The sum of protons, electrons and neutrons in the heaviest isotope of hydrogen is

Ans. 4
1H3 has 3 nucleons (1 proton + 2 neutrons) and one electron so sum of these is 3 + 1 = 4.


Q.5. Hydrogen has three isotopes, the number of possible diatomic molecules will be

Ans. 6
H1H1 ,H1H2, H2H2, H3H3, H2H3

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