Chemistry Of Hydrogen Element Exercises Quiz

Welcome to your Chemistry of Hydrogen Element Exercises Quiz

Today May 9, 2024

Name

What is the atomic number of hydrogen?

Which hydrogen isotope is the rarest and undergoes β- decay to form helium-3?

Protium

Deuterium

None of the above

Tritium

The reaction between hydrogen gas and oxygen gas to form water is:

Exothermic

Non-reactive

Endothermic

Neutral

Which isotope of hydrogen has a higher density and is less soluble in water than protium?

Tritium

They have the same density and solubility

Deuterium

Protium

Which of the following statements is true about the electronic configuration of hydrogen?

It has one valence electron in its outermost shell.

It has multiple valence electrons in its outermost shell.

It has a completely empty outermost shell.

It has a completely filled outermost shell.

Which term describes the process in which hydrogen loses electrons?

Oxidation

Redox

Combustion

Reduction

Which isotope of hydrogen is the most abundant in nature?

Protium

Deuterium

Tritium

They have equal abundance

What type of bond does hydrogen most commonly form?

Covalent bond

Ionic bond

Metallic bond

Hydrogen bond

Which of the following statements about hydrogen is correct?

It constitutes about 50% of the elemental mass in the universe.

It has a high atomic weight due to the presence of neutrons.

It can easily lose or gain electrons to form ions with a charge of +1 or -1.

It is a metallic element on the periodic table.

10.

What is the electronic configuration of hydrogen in its neutral state?

1s1

1s0

2p6

2s1

11.

What is the role of a spark or flame in the combustion of hydrogen?

To increase the rate of reaction

To prevent the formation of water

To initiate the reaction

To remove impurities from hydrogen

12.

Which of the following compounds can undergo both reduction and oxidation reactions?

Methane (CH4)

Water (H2O)

Hydrogen peroxide (H2O2)

Hydrochloric acid (HCl)

13.

What is the balanced equation for the combustion of hydrogen?

H2O(l) + energy → 2H2(g) + O2(g)

2H2(g) + O2(g) → 2H2O(l) + energy

2H2O(l) + energy → 2H2(g) + O2(g)

H2(g) + O2(g) → H2O(l)

14.

Which of the following oxidation states can hydrogen exhibit?

+1, -2, and 0

+1, -1, and 0

+2, -2, and 0

+1, -1, and +2

15.

Among the hydrogen isotopes, which one is stable and does not undergo radioactive decay?

All of them undergo radioactive decay

Deuterium

Tritium

Protium

16.

In the +1 oxidation state, hydrogen bonds with non-metals to form compounds called:

Hydrides

Acids

Salts

Bases

17.

Which compound is formed when hydrogen reacts with sulfur?

H2O

SO2

HCl

H2S

18.

Which of the following is the chemical formula for hydrogen gas?

H2O2

H2O

19.

What is the reducing agent in the reaction: RCH2OH + LiAlH4 → RCH2OH2 + Al(OH)3 + LiH?

LiAlH4

RCH2OH

Al(OH)3

LiH

20.

Which of the following reactions involves hydrogen and sulfur?

H2(g) + Cl2(g) → 2HCl(g)

H2(g) + S(g) → H2S(g)

H2(g) + O2(g) → 2H2O(l)

CH4(g) + 2H2(g) → C2H6(g)

21.

What is the occurrence of hydrogen in the Earth's atmosphere by volume?

0.01%

0.001%

0.00005%

0.1%

22.

In which group and period is hydrogen located on the periodic table?

Group 1, Period 1

Group 1, Period 2

Group 7, Period 2

Group 7, Period 1

23.

Hydrogen bonding is a special type of intermolecular force that occurs between hydrogen and:

Non-metals

Transition metals

Metals

Noble gases

24.

Which of the following is an example of a hydride?

NH3

H2SO4

HCl

NaHCO3

25.

Which group on the periodic table is hydrogen located in?

Group 18 (noble gases)

Group 2 (alkaline earth metals)

Group 1 (alkali metals)

Group 17 (halogens)

26.

In the steam reforming of natural gas, which catalyst is commonly used?

Platinum

Palladium

Nickel

Iron

27.

What is the appearance of hydrogen gas?

Red color, sweet odor

Blue color, no odor

Yellow color, pungent odor

Colorless, odorless, and tasteless

28.

How is hydrogen produced in the Earth's atmosphere?

By the decay of radioactive elements

Through volcanic activity

By the action of sunlight on water vapor

Through the combustion of fossil fuels

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