Which element is the primary component of organic molecules?

Question

Which element is the primary component of organic molecules?

B. Oxygen

C. Carbon

Correct Answer :

C. Carbon

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What is the chemical formula for sodium hydroxide?

A. NaOH

B. HCl

C. Na2CO3

D. H2SO4

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Which of the following is a halogen?

A. Sodium

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What is the chemical formula for methane?

A. CH4

B. CO2

C. H2O

D. NH3

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

A. Oxygen

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Which element is the most abundant in the universe?

B. Helium

C. Oxygen

D. Carbon

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Which of the following is a noble gas?

A. Neon

B. Sodium

C. Oxygen

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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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Which of the following is a nonmetal?

A. Sodium

C. Iron

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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 responsible for the blue color of the Earth's sky?

A. Oxygen

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

D. Fusion

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What is the chemical formula for sulfur hexafluoride?

A. SF6

B. SF5

C. S2F6

D. S2F5

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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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What is the chemical formula for aspirin?

B. CH4

C. C9H8O4

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What is the chemical formula for hydrogen peroxide?

A. H2O2

B. H2SO4

C. HCl

D. NH3

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Which type of bond involves the sharing of electrons?

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What is the formula for the hydroxide ion?

A. OH2

B. H2O

C. HO

D. OH-

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Which element is used in fluorescent lights?

A. Neon

B. Argon

D. Xenon

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Which element is essential for the process of respiration?

A. Carbon

B. Oxygen

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Which gas is used in the process of photosynthesis?

B. Oxygen

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What is the chemical symbol for silver?

A. Ag

B. Au

C. Si

D. Sr

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What is the chemical formula for sodium chloride?

A. NaCl

B. Na2Cl

C. NaCl2

D. Na2Cl2

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What is the chemical formula for carbon monoxide?

A. CO2

B. CH4

C. CO

D. C2O

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Which gas is essential for photosynthesis in plants?

B. Oxygen

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Which gas is produced during photosynthesis?

A. Oxygen

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Which element is essential for all organic compounds?

A. Carbon

B. Oxygen

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Which element is the primary component of organic molecules?

B. Oxygen

C. Carbon

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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 sodium bicarbonate?

A. NaHCO3

B. NaOH

C. Na2CO3

D. Na2SO4

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The atomic number of an element is determined by the number of:

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Answer 1

A. Nitrogen

Answer 2

D. Hydrogen

Answer 3

B. Fluorine

Answer 4

C. Potassium

Answer 5

D. Calcium

Answer 6

B. Nitrogen

Answer 7

C. Carbon dioxide

Answer 8

D. Sulfur dioxide

Answer 9

A. Hydrogen

Answer 10

D. Chlorine

Answer 11

B. Chlorine

Answer 12

D. Calcium

Answer 13

B. Carbon dioxide

Answer 14

C. Nitrogen

Answer 15

B. Carbon dioxide

Answer 16

C. Nitrogen

Answer 17

D. Rayleigh scattering of sunlight

Answer 18

A. Evaporation

Answer 19

B. Condensation

Answer 20

C. Sublimation

Answer 21

A. C6H12O6

Answer 22

D. C12H22O11

Answer 23

A. Ionic bond

Answer 24

B. Covalent bond

Answer 25

C. Metallic bond

Answer 26

D. Hydrogen bond

Answer 27

C. Mercury

Answer 28

C. Hydrogen

Answer 29

D. Nitrogen

Answer 30

A. Carbon dioxide

Answer 31

C. Nitrogen

Answer 32

D. Hydrogen

Answer 33

A. Carbon dioxide

Answer 34

C. Nitrogen

Answer 35

D. Methane

Answer 36

B. Carbon dioxide

Answer 37

C. Nitrogen

Answer 38

D. Hydrogen

Answer 39

C. Hydrogen

Answer 40

D. Nitrogen

Answer 41

A. Nitrogen

Answer 42

D. Hydrogen

Answer 43

B. Electron

Answer 44

C. Neutron

Answer 45

A. Protons

Answer 46

B. Electrons

Answer 47

C. Neutrons

Answer 48

D. Nucleons

Which element is the primary component of organic molecules?

Correct Answer :

Show all AP Chemistry MCQ

Related Questions

What is the chemical formula for sodium hydroxide?

Which of the following is a halogen?

What is the chemical formula for methane?

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

Which element is the most abundant in the universe?

Which of the following is a noble gas?

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

Which of the following is a nonmetal?

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

Which gas is responsible for the blue color of the Earth's sky?

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

What is the chemical formula for sulfur hexafluoride?

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

What is the chemical formula for aspirin?

What is the chemical formula for hydrogen peroxide?

Which type of bond involves the sharing of electrons?

What is the formula for the hydroxide ion?

Which element is used in fluorescent lights?

Which element is essential for the process of respiration?

Which gas is used in the process of photosynthesis?

What is the chemical symbol for silver?

What is the chemical formula for sodium chloride?

What is the chemical formula for carbon monoxide?

Which gas is essential for photosynthesis in plants?

Which gas is produced during photosynthesis?

Which element is essential for all organic compounds?

Which element is the primary component of organic molecules?

Which subatomic particle is responsible for chemical bonding?

What is the chemical formula for sodium bicarbonate?

The atomic number of an element is determined by the number of:

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