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Current Affairs January 2024

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Which type of bond involves the sharing of electrons?

A. Ionic bond

B. Covalent bond

C. Metallic bond

D. Hydrogen bond

Correct Answer :

B. Covalent bond


Related Questions

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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 gas is used in the process of photosynthesis?

A. Carbon dioxide

B. Oxygen

C. Nitrogen

D. Hydrogen

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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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What is the chemical formula for hydrogen gas?

A. H2

B. O2

C. N2

D. CO2

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What is the chemical formula for water?

A. H2O

B. CO2

C. CH4

D. O2

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Which subatomic particle has a negative charge?

A. Proton

B. Neutron

C. Electron

D. Nucleus

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What is the chemical symbol for iron?

A. Ir

B. Fe

C. In

D. Ni

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

A. Sublimation

B. Condensation

C. Evaporation

D. Fusion

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Which element is essential for human bone health?

A. Calcium

B. Iron

C. Sodium

D. Potassium

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What is the chemical formula for sulfur hexafluoride?

A. SF6

B. SF5

C. S2F6

D. S2F5

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What is the chemical formula for ammonia?

A. NH4

B. NH2

C. NH3

D. NH

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

A. Neon

B. Xenon

C. Krypton

D. Argon

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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 transition metal?

A. Sodium

B. Iron

C. Calcium

D. Potassium

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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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What is the chemical symbol for potassium?

A. Po

B. Pa

C. K

D. Ke

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What is the formula for the hydroxide ion?

A. OH2

B. H2O

C. HO

D. OH-

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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 gas is essential for photosynthesis in plants?

A. Carbon dioxide

B. Oxygen

C. Nitrogen

D. Methane

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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 symbol for silver?

A. Ag

B. Au

C. Si

D. Sr

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Which element is the most abundant in the universe?

A. Hydrogen

B. Helium

C. Oxygen

D. Carbon

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Which of the following is a halogen?

A. Sodium

B. Fluorine

C. Potassium

D. Calcium

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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 of the following is a nonmetal?

A. Sodium

B. Chlorine

C. Iron

D. Calcium

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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:

A. Protons

B. Electrons

C. Neutrons

D. Nucleons

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4

What is the chemical formula for nitric acid?

A. HCl

B. H2SO4

C. HNO3

D. H3PO4

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Which subatomic particle is responsible for chemical bonding?

A. Proton

B. Electron

C. Neutron

D. Photon