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4

What is the chemical formula for ozone?

A. O2

B. H2O

C. CO2

D. O3

Correct Answer :

D. O3


Related Questions

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What is the chemical formula for nitric acid?

A. HCl

B. H2SO4

C. HNO3

D. H3PO4

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4

Which element is commonly used in batteries?

A. Calcium

B. Lithium

C. Aluminum

D. Zinc

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4

What is the chemical formula for glucose?

A. C2H6O

B. CH4

C. C6H12O6

D. C8H18

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

A. Oxygen

B. Silicon

C. Carbon

D. Hydrogen

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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 chemical formula for water vapor?

A. H2O

B. CO2

C. H2O2

D. O2

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What is the chemical formula for carbon dioxide?

A. CO2

B. CH4

C. CO

D. C2O

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

A. Evaporation

B. Condensation

C. Sublimation

D. Fusion

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

A. Oxygen

B. Nitrogen

C. Carbon dioxide

D. Sulfur dioxide

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Which of the following is a greenhouse gas?

A. Oxygen

B. Nitrogen

C. Carbon dioxide

D. Argon

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What is the chemical formula for potassium nitrate?

A. KNO3

B. KN2O4

C. K2NO3

D. K3NO2

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Which gas is responsible for the rotten egg smell?

A. Oxygen

B. Carbon monoxide

C. Sulfur dioxide

D. Hydrogen sulfide

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4

What is the atomic number of carbon?

A. 12

B. 14

C. 6

D. 8

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Which gas is essential for photosynthesis in plants?

A. Carbon dioxide

B. Oxygen

C. Nitrogen

D. Methane

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Which subatomic particle is responsible for chemical bonding?

A. Proton

B. Electron

C. Neutron

D. Photon

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Which of the following is a halogen?

A. Sodium

B. Fluorine

C. Potassium

D. Calcium

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Which element is essential for the process of respiration?

A. Carbon

B. Oxygen

C. Hydrogen

D. Nitrogen

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Which element is essential for all organic compounds?

A. Carbon

B. Oxygen

C. Hydrogen

D. Nitrogen

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Which element is the primary component of organic molecules?

A. Nitrogen

B. Oxygen

C. Carbon

D. Hydrogen

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Which of the following is a metalloid?

A. Boron

B. Oxygen

C. Nitrogen

D. Sulfur

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What is the chemical formula for hydrochloric acid?

A. H2SO4

B. HCl

C. HNO3

D. H3PO4

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

A. Argon

B. Fluorine

C. Chlorine

D. Bromine

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

A. Oxygen

B. Carbon dioxide

C. Nitrogen

D. Argon

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How many hydrogen atoms are in one molecule of methane (CH4)?

A. 1

B. 2

C. 3

D. 4

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What is the chemical formula for methane?

A. CH4

B. CO2

C. H2O

D. NH3

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4

What is the chemical formula for ozone?

A. O2

B. H2O

C. CO2

D. O3

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4

What is the chemical formula for sodium hydroxide?

A. NaOH

B. HCl

C. Na2CO3

D. H2SO4

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4

What is the chemical formula for table salt?

A. NaCl

B. H2O

C. CO2

D. CH4

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4

Which gas is produced during photosynthesis?

A. Oxygen

B. Carbon dioxide

C. Nitrogen

D. Hydrogen

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4

What is the chemical symbol for gold?

A. Ag

B. Go

C. Au

D. Gd