What is the chemical formula for potassium nitrate?

Question

What is the chemical formula for potassium nitrate?

A. KNO3

B. KN2O4

C. K2NO3

D. K3NO2

Correct Answer :

A. KNO3

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Comment

What is the chemical formula for aspirin?

B. CH4

C. C9H8O4

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Which element is essential for human bone health?

B. Iron

C. Sodium

Discuss this answer

Which gas is essential for photosynthesis in plants?

B. Oxygen

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

A. Oxygen

D. Argon

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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 ammonia?

A. NH4

B. NH2

C. NH3

D. NH

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The pH scale measures the acidity or alkalinity of a substance. A pH value of 7 is considered:

A. Acidic

D. Basic

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Which subatomic particle has a negative charge?

A. Proton

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Which of the following is a transition metal?

A. Sodium

B. Iron

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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 type of bond involves the sharing of electrons?

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Which of the following is a noble gas?

A. Neon

B. Sodium

C. Oxygen

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Which element is used in fluorescent lights?

A. Neon

B. Argon

D. Xenon

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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 table salt?

A. NaCl

B. H2O

C. CO2

D. CH4

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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 glucose?

A. C2H6O

B. CH4

D. C8H18

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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 element is essential for all organic compounds?

A. Carbon

B. Oxygen

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What is the chemical symbol for iron?

A. Ir

B. Fe

C. In

D. Ni

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Which gas makes up the majority of Earth's atmosphere?

A. Oxygen

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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 formula for sulfur hexafluoride?

A. SF6

B. SF5

C. S2F6

D. S2F5

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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 hydrogen gas?

A. H2

B. O2

C. N2

D. CO2

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

A. Argon

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

Discuss this answer

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

A. Oxygen

C. Carbon

Discuss this answer

Answer 1

A. C6H12O6

Answer 2

D. C12H22O11

Answer 3

A. Calcium

Answer 4

D. Potassium

Answer 5

A. Carbon dioxide

Answer 6

C. Nitrogen

Answer 7

D. Methane

Answer 8

B. Carbon dioxide

Answer 9

C. Nitrogen

Answer 10

B. Alkaline

Answer 11

C. Neutral

Answer 12

B. Neutron

Answer 13

C. Electron

Answer 14

D. Nucleus

Answer 15

C. Calcium

Answer 16

D. Potassium

Answer 17

A. Sublimation

Answer 18

B. Condensation

Answer 19

C. Evaporation

Answer 20

A. Ionic bond

Answer 21

B. Covalent bond

Answer 22

C. Metallic bond

Answer 23

D. Hydrogen bond

Answer 24

D. Chlorine

Answer 25

C. Mercury

Answer 26

A. Carbon dioxide

Answer 27

C. Nitrogen

Answer 28

D. Hydrogen

Answer 29

C. C6H12O6

Answer 30

A. Uranium

Answer 31

C. Lanthanum

Answer 32

C. Hydrogen

Answer 33

D. Nitrogen

Answer 34

B. Carbon dioxide

Answer 35

C. Nitrogen

Answer 36

D. Hydrogen

Answer 37

A. Nitrogen

Answer 38

D. Hydrogen

Answer 39

B. Fluorine

Answer 40

C. Chlorine

Answer 41

D. Bromine

Answer 42

A. Protons

Answer 43

B. Electrons

Answer 44

C. Neutrons

Answer 45

D. Nucleons

Answer 46

B. Silicon

Answer 47

D. Hydrogen

What is the chemical formula for potassium nitrate?

Correct Answer :

Show all AP Chemistry MCQ

Related Questions

What is the chemical formula for aspirin?

Which element is essential for human bone health?

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