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Current Affairs January 2024

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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

Correct Answer :

B. Carbon dioxide


Related Questions

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What is the chemical formula for sulfur dioxide?

A. SO2

B. H2SO4

C. SO3

D. H2S

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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 sulfur hexafluoride?

A. SF6

B. SF5

C. S2F6

D. S2F5

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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 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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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 of the following is a halogen?

A. Sodium

B. Fluorine

C. Potassium

D. Calcium

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What is the chemical formula for potassium nitrate?

A. KNO3

B. KN2O4

C. K2NO3

D. K3NO2

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What is the chemical formula for hydrogen peroxide?

A. H2O2

B. H2SO4

C. HCl

D. NH3

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What is the chemical formula for sulfuric acid?

A. HCl

B. H2SO4

C. HNO3

D. H3PO4

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Which of the following is a lanthanide element?

A. Uranium

B. Boron

C. Lanthanum

D. Sodium

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What is the chemical formula for nitric acid?

A. HCl

B. H2SO4

C. HNO3

D. H3PO4

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Which element is commonly used in batteries?

A. Calcium

B. Lithium

C. Aluminum

D. Zinc

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

A. Oxygen

B. Silicon

C. Carbon

D. Hydrogen

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

A. Oxygen

B. Carbon dioxide

C. Nitrogen

D. Rayleigh scattering of sunlight

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What is the chemical formula for hydrogen gas?

A. H2

B. O2

C. N2

D. CO2

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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 transition metal?

A. Sodium

B. Iron

C. Calcium

D. Potassium

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What is the chemical symbol for iron?

A. Ir

B. Fe

C. In

D. Ni

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How many electrons are in the outermost energy level (valence shell) of a neutral oxygen atom?

A. 2

B. 6

C. 8

D. 4

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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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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 water?

A. H2O

B. CO2

C. CH4

D. O2

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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 noble gas?

A. Neon

B. Sodium

C. Oxygen

D. Chlorine

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Which of the following is a nonmetal?

A. Sodium

B. Chlorine

C. Iron

D. Calcium

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

A. Acidic

B. Alkaline

C. Neutral

D. Basic

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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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What is the chemical formula for glucose?

A. C2H6O

B. CH4

C. C6H12O6

D. C8H18