What is the chemical formula for hydrogen gas?

Question

What is the chemical formula for hydrogen gas?

A. H2

B. O2

C. N2

D. CO2

Correct Answer :

A. H2

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Which type of bond involves the sharing of electrons?

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Which subatomic particle is responsible for chemical bonding?

A. Proton

D. Photon

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What is the chemical formula for water?

A. H2O

B. CO2

C. CH4

D. O2

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Which of the following is a greenhouse gas produced by human activities?

A. Oxygen

D. Argon

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Which gas is produced by burning fossil fuels and contributes to air pollution?

A. Oxygen

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What is the chemical formula for hydrogen peroxide?

A. H2O2

B. H2SO4

C. HCl

D. NH3

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What is the chemical formula for ozone?

A. O2

B. H2O

C. CO2

D. O3

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Which subatomic particle has a negative charge?

A. Proton

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Which of the following is a noble gas?

A. Neon

B. Sodium

C. Oxygen

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The process of a substance changing from a gas to a liquid is called:

D. Fusion

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Which element is essential for human bone health?

B. Iron

C. Sodium

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What is the chemical formula for table salt?

A. NaCl

B. H2O

C. CO2

D. CH4

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What is the chemical formula for sodium bicarbonate?

A. NaHCO3

B. NaOH

C. Na2CO3

D. Na2SO4

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What is the formula for the hydroxide ion?

A. OH2

B. H2O

C. HO

D. OH-

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What is the chemical formula for carbon monoxide?

A. CO2

B. CH4

C. CO

D. C2O

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What is the chemical formula for hydrochloric acid?

A. H2SO4

B. HCl

C. HNO3

D. H3PO4

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What is the chemical symbol for potassium?

A. Po

B. Pa

C. K

D. Ke

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Which element is the primary component of organic molecules?

B. Oxygen

C. Carbon

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What is the chemical formula for water vapor?

A. H2O

B. CO2

C. H2O2

D. O2

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Which gas is used in the process of photosynthesis?

B. Oxygen

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Which gas is produced during photosynthesis?

A. Oxygen

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Which element is essential for the process of respiration?

A. Carbon

B. Oxygen

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What is the chemical formula for potassium nitrate?

A. KNO3

B. KN2O4

C. K2NO3

D. K3NO2

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What is the chemical formula for methane?

A. CH4

B. CO2

C. H2O

D. NH3

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What is the chemical formula for sodium chloride?

A. NaCl

B. Na2Cl

C. NaCl2

D. Na2Cl2

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Which of the following is a noble gas used in lighting?

A. Argon

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Which element is the most abundant in Earth's crust?

A. Oxygen

C. Carbon

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How many protons are in the nucleus of an atom with an atomic number of 20?

A. 10

B. 20

C. 40

D. 60

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Which of the following is a lanthanide element?

B. Boron

D. Sodium

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The process of a liquid changing into a gas at the surface is called:

D. Fusion

Discuss this answer

Answer 1

A. Ionic bond

Answer 2

B. Covalent bond

Answer 3

C. Metallic bond

Answer 4

D. Hydrogen bond

Answer 5

B. Electron

Answer 6

C. Neutron

Answer 7

B. Carbon dioxide

Answer 8

C. Nitrogen

Answer 9

B. Nitrogen

Answer 10

C. Carbon dioxide

Answer 11

D. Sulfur dioxide

Answer 12

B. Neutron

Answer 13

C. Electron

Answer 14

D. Nucleus

Answer 15

D. Chlorine

Answer 16

A. Sublimation

Answer 17

B. Condensation

Answer 18

C. Evaporation

Answer 19

A. Calcium

Answer 20

D. Potassium

Answer 21

A. Nitrogen

Answer 22

D. Hydrogen

Answer 23

A. Carbon dioxide

Answer 24

C. Nitrogen

Answer 25

D. Hydrogen

Answer 26

B. Carbon dioxide

Answer 27

C. Nitrogen

Answer 28

D. Hydrogen

Answer 29

C. Hydrogen

Answer 30

D. Nitrogen

Answer 31

B. Fluorine

Answer 32

C. Chlorine

Answer 33

D. Bromine

Answer 34

B. Silicon

Answer 35

D. Hydrogen

Answer 36

A. Uranium

Answer 37

C. Lanthanum

Answer 38

A. Evaporation

Answer 39

B. Condensation

Answer 40

C. Sublimation

What is the chemical formula for hydrogen gas?

Correct Answer :

Show all AP Chemistry MCQ

Related Questions

Which type of bond involves the sharing of electrons?

Which subatomic particle is responsible for chemical bonding?

What is the chemical formula for water?

Which of the following is a greenhouse gas produced by human activities?

Which gas is produced by burning fossil fuels and contributes to air pollution?

What is the chemical formula for hydrogen peroxide?

What is the chemical formula for ozone?

Which subatomic particle has a negative charge?

Which of the following is a noble gas?

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What is the chemical formula for table salt?

What is the chemical formula for sodium bicarbonate?

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What is the chemical formula for water vapor?

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Which gas is produced during photosynthesis?

Which element is essential for the process of respiration?

What is the chemical formula for potassium nitrate?

What is the chemical formula for methane?

What is the chemical formula for sodium chloride?

Which of the following is a noble gas used in lighting?

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How many protons are in the nucleus of an atom with an atomic number of 20?

Which of the following is a lanthanide element?

The process of a liquid changing into a gas at the surface is called:

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