Which element is essential for the process of respiration?

Question

Which element is essential for the process of respiration?

A. Carbon

B. Oxygen

Correct Answer :

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 formula for acetic acid, found in vinegar?

A. HCl

B. H2SO4

D. HNO3

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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 iron?

A. Ir

B. Fe

C. In

D. Ni

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What is the chemical symbol for gold?

A. Ag

B. Go

C. Au

D. Gd

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Which element is essential for human bone health?

B. Iron

C. Sodium

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Which subatomic particle has a negative charge?

A. Proton

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What is the chemical formula for methane?

A. CH4

B. CO2

C. H2O

D. NH3

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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 sulfur dioxide?

A. SO2

B. H2SO4

C. SO3

D. H2S

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What is the chemical formula for water?

A. H2O

B. CO2

C. CH4

D. O2

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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 the process of respiration?

A. Carbon

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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Which element is commonly used in batteries?

D. Zinc

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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 greenhouse gas produced by human activities?

A. Oxygen

D. Argon

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Which of the following is a transition metal?

A. Sodium

B. Iron

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What is the chemical symbol for potassium?

A. Po

B. Pa

C. K

D. Ke

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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 of the following is a greenhouse gas?

A. Oxygen

D. Argon

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Which element is a noble gas and is often used in advertising signs?

A. Neon

B. Xenon

D. Argon

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Which type of bond involves the sharing of electrons?

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What is the atomic number of carbon?

A. 12

B. 14

C. 6

D. 8

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Which gas is responsible for the rotten egg smell?

A. Oxygen

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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 hydroxide?

A. NaOH

B. HCl

C. Na2CO3

D. H2SO4

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Which of the following is a lanthanide element?

B. Boron

D. Sodium

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Which gas is produced during photosynthesis?

A. Oxygen

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

A. Oxygen

Discuss this answer

Answer 1

C. Hydrogen

Answer 2

D. Nitrogen

Answer 3

A. Carbon dioxide

Answer 4

C. Nitrogen

Answer 5

D. Hydrogen

Answer 6

C. CH3COOH

Answer 7

A. Calcium

Answer 8

D. Potassium

Answer 9

B. Neutron

Answer 10

C. Electron

Answer 11

D. Nucleus

Answer 12

B. Electron

Answer 13

C. Neutron

Answer 14

A. Sublimation

Answer 15

B. Condensation

Answer 16

C. Evaporation

Answer 17

C. Hydrogen

Answer 18

D. Nitrogen

Answer 19

A. Calcium

Answer 20

B. Lithium

Answer 21

C. Aluminum

Answer 22

B. Carbon dioxide

Answer 23

C. Nitrogen

Answer 24

C. Calcium

Answer 25

D. Potassium

Answer 26

B. Nitrogen

Answer 27

C. Carbon dioxide

Answer 28

C. Krypton

Answer 29

A. Ionic bond

Answer 30

B. Covalent bond

Answer 31

C. Metallic bond

Answer 32

D. Hydrogen bond

Answer 33

B. Carbon monoxide

Answer 34

C. Sulfur dioxide

Answer 35

D. Hydrogen sulfide

Answer 36

A. Uranium

Answer 37

C. Lanthanum

Answer 38

B. Carbon dioxide

Answer 39

C. Nitrogen

Answer 40

D. Hydrogen

Answer 41

B. Carbon dioxide

Answer 42

C. Nitrogen

Answer 43

D. Rayleigh scattering of sunlight

Which element is essential for the process of respiration?

Correct Answer :

Show all AP Chemistry MCQ

Related Questions

Which gas is used in the process of photosynthesis?

What is the chemical formula for acetic acid, found in vinegar?

What is the chemical formula for hydrochloric acid?

What is the chemical symbol for iron?

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Which element is essential for the process of respiration?

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What is the chemical formula for sodium hydroxide?

Which of the following is a lanthanide element?

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

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