HARD
Earn 100

At room temperature, coke will react with hydrogen gas and form methane gas.

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Important Questions on Hydrogen

MEDIUM
Which of the following statements about hydrogen is incorrect?
MEDIUM
Hydrogen can be liquefied under high pressure and by cooling it below _____.
EASY
Hydrogen is _____ than air
MEDIUM
Name of the catalyst that is used in Haber's process.
HARD
Vegetable oils are converted to vegetable ghee by the process of:
HARD
Which metal adsorbs hydrogen?
EASY
Hydrogen is the only element that exists without _____, which is a subatomic particle.
EASY
Which of the following is not a property of hydrogen?
EASY
A _____ is formed when hydrogen is burnt in air. (blue flame/ white precipitate)
EASY
When hydrogen gas reacts with carbon elements at ______, the product formed is methane.
EASY
Which gas is obtained when hydrogen gas directly combines with carbon?
EASY
Complete the sentence.

A hydrocarbon is a compound made of _____. (carbon and hydrogen/carbon and oxygen/carbon and sulphur)

EASY
Equal volumes of hydrogen and chlorine are exposed to diffused sunlight to prepare
EASY

Hydrogen reacts with some metals to form _____.

EASY
The compounds formed by the reaction of metals with hydrogen are called
EASY
Hydrogen occurs in space as _____ from which stars are formed.
MEDIUM
When hydrogen is passed over molten sulphur, _____ (Sulphur dioxide/ Hydrogen sulphide) is produced.
MEDIUM
Complete the sentence.

A compound of hydrogen and a metal is called _____. (covalent hydride/ ionic hydride)

EASY
When hydrogen gas reacts with carbon elements at 1000 Co, the product formed is