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 Why hydrogen is more electronegative than sodium?

Important Questions on Hydrogen

EASY
Chemistry>Inorganic Chemistry>Hydrogen>Dihydrogen
The total number of isotopes of hydrogen and number of radioactive isotopes among them, respectively, are
EASY
Chemistry>Inorganic Chemistry>Hydrogen>Dihydrogen
Which of the following statements is false?
EASY
Chemistry>Inorganic Chemistry>Hydrogen>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  1H atoms are replaced by  2H atoms is:
EASY
Chemistry>Inorganic Chemistry>Hydrogen>Dihydrogen
The isotopes of hydrogen are:
EASY
Chemistry>Inorganic Chemistry>Hydrogen>Dihydrogen
Which among the given options is not an inert gas?
EASY
Chemistry>Inorganic Chemistry>Hydrogen>Dihydrogen

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.

Assertion A: Hydrogen is the most abundant element in the Universe, but it is not the most abundant gas in the troposphere.

Reason R: Hydrogen is the lightest element.

In the light of the above statements, choose the correct answer from the options given below:

EASY
Chemistry>Inorganic Chemistry>Hydrogen>Dihydrogen
Who among the following made the first observation on Platinum as a catalyst and discovered similar triads of elements that led to the development of the Periodic Table of elements?
EASY
Chemistry>Inorganic Chemistry>Hydrogen>Dihydrogen
The number of neutrons and electrons, respectively, present in the radioactive isotope of hydrogen is :-
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Chemistry>Inorganic Chemistry>Hydrogen>Dihydrogen

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.

Assertion A : Physical properties of isotopes of hydrogen are different.

Reason R : Mass difference between isotopes of hydrogen is very large.

In the light of the above statements, choose the correct answer from the options given below:

EASY
Chemistry>Inorganic Chemistry>Hydrogen>Dihydrogen
Which of the following forms of hydrogen emits low energy β- particles?
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Chemistry>Inorganic Chemistry>Hydrogen>Dihydrogen
Deuterium resembles hydrogen in properties but:
EASY
Chemistry>Inorganic Chemistry>Hydrogen>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.
HARD
Chemistry>Inorganic Chemistry>Hydrogen>Dihydrogen
_____ is the most abundant element in the universe.
EASY
Chemistry>Inorganic Chemistry>Hydrogen>Dihydrogen
The radioactive isotope of hydrogen is called _____.(protium/tritium)
EASY
Chemistry>Inorganic Chemistry>Hydrogen>Dihydrogen
The adsorption of hydrogen by palladium is commonly known as _____.
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Chemistry>Inorganic Chemistry>Hydrogen>Dihydrogen
In which of the following properties listed below, hydrogen does not show similarity with halogens?

I. Nature of the oxide

II. Electropositive character

III. Combination with alkali metals

IV. Atomicity
EASY
Chemistry>Inorganic Chemistry>Hydrogen>Dihydrogen
Hydrogen resembles halogens in many respects for which several factors are responsible. Of the following factors which one is most important in this respect?
EASY
Chemistry>Inorganic Chemistry>Hydrogen>Dihydrogen
Hydrogen is the only element that exists without _____, which is a subatomic particle.
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Chemistry>Inorganic Chemistry>Hydrogen>Dihydrogen
Hydrogen forms _____ mixture with air.
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Chemistry>Inorganic Chemistry>Hydrogen>Dihydrogen
All the hydrogen atoms present in TMS(tetramethyl silane) are in a _____ molecular environment.(single/double)