EASY
Earn 100

Compare hydrogen with alkali metals on the basis of size of the ions.

Important Questions on Hydrogen

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

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Chemistry>Inorganic Chemistry>Hydrogen>Dihydrogen
Which of the following statements is false?
MEDIUM
Chemistry>Inorganic Chemistry>Hydrogen>Dihydrogen
Deuterium resembles hydrogen in properties but:
EASY
Chemistry>Inorganic Chemistry>Hydrogen>Dihydrogen
The isotopes of hydrogen are:
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Chemistry>Inorganic Chemistry>Hydrogen>Dihydrogen
Which of the following forms of hydrogen emits low energy β- particles?
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.
EASY
Chemistry>Inorganic Chemistry>Hydrogen>Dihydrogen
Which among the given options is not an inert gas?
MEDIUM
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
The number of neutrons and electrons, respectively, present in the radioactive isotope of hydrogen is :-
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:
MEDIUM
Chemistry>Inorganic Chemistry>Hydrogen>Dihydrogen
Discuss two characteristics in which hydrogen resembles alkali metals.
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?
MEDIUM
Chemistry>Inorganic Chemistry>Hydrogen>Dihydrogen
Explain why hydrogen is best placed separately in the periodic table of elements?
MEDIUM
Chemistry>Inorganic Chemistry>Hydrogen>Dihydrogen
Discuss the characteristics in which hydrogen resembles halogens.
MEDIUM
Chemistry>Inorganic Chemistry>Hydrogen>Dihydrogen

Represent the union of two sets by Venn diagram for each of the following.

X={x | x is a prime number between 80 and 100}

Y={y | y is an odd number between 90 and 100}

MEDIUM
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
MEDIUM
Chemistry>Inorganic Chemistry>Hydrogen>Dihydrogen
Name the isotopes of hydrogen. What is the importance of the heavier isotopes of hydrogen?
EASY
Chemistry>Inorganic Chemistry>Hydrogen>Dihydrogen
Discuss the position of hydrogen in the periodic table?