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Covalent radius of hydrogen is measured using the _____ of $H_{2}$ molecule.

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Important Questions on Hydrogen

MEDIUM

Chemistry>Inorganic Chemistry>Hydrogen>Properties of Dihydrogen

Dihydrogen of high purity

(> 99.95 %)

is obtained through :

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Properties of Dihydrogen

The total number of isotopes of hydrogen and number of radioactive isotopes among them, respectively, are

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Properties of Dihydrogen

Which of the following acts as oxidising agent in hydrogen- oxygen fuel cell?

MEDIUM

Chemistry>Inorganic Chemistry>Hydrogen>Properties of Dihydrogen

Write a chemical equation for the reaction taking place in the flask. Write name and one property of the gas evolved.

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EASY

Chemistry>Inorganic Chemistry>Hydrogen>Properties of Dihydrogen

Which one of the following statements is incorrect ?

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Properties of Dihydrogen

The isotopes of hydrogen are:

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Properties of Dihydrogen

The most abundant elements by mass in the body of a healthy human adult are:

Oxygen (61.4%); Carbon (22.9%), Hydrogen (10.0%); and Nitrogen (2.6%). The weight which a 75kg person would gain if all

^{1} H

atoms are replaced by

^{2} H

atoms is:

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Properties of Dihydrogen

Which of the following statements about hydrogen is incorrect?

MEDIUM

Chemistry>Inorganic Chemistry>Hydrogen>Properties of Dihydrogen

Out of the oxides given below which of them cannot be reduced by $H_{2}$ ?

$I - {Al}_{2} O_{3}; II - CuO; III - ZnO$

MEDIUM

Chemistry>Inorganic Chemistry>Hydrogen>Properties of Dihydrogen

The radius

R

of a nucleus of mass number

A

can be estimated by the formula

R = (1.3 \times 10^{- 15}) A^{1 / 3} m

. It follows that the mass density of a nucleus is of the order of:

(M_{p r o t} ≅ M_{neut} ≃ 1.67 \times 10^{- 27} kg)

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Properties of Dihydrogen

Which of the following statements is not true for hydrogen:
1) It exists as a diatomic molecule.
2) It has one electron in the outermost shell.
3) It can lose an electron to form a cation which can freely exist.
4) It cannot form ionic compounds.

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Properties of Dihydrogen

Which of the following properties of hydrogen is similar to halogen family?

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Properties of Dihydrogen

Write the four uses of dihydrogen gas.

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Chemistry>Inorganic Chemistry>Hydrogen>Properties of Dihydrogen