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Current Affairs January 2024

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Which gas is responsible for the rotten egg smell?

A. Oxygen

B. Carbon monoxide

C. Sulfur dioxide

D. Hydrogen sulfide

Correct Answer :

D. Hydrogen sulfide


Related Questions

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What is the atomic number of carbon?

A. 12

B. 14

C. 6

D. 8

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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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Which subatomic particle is responsible for chemical bonding?

A. Proton

B. Electron

C. Neutron

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

A. 1

B. 2

C. 3

D. 4

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4

Which element is the most abundant in the universe?

A. Hydrogen

B. Helium

C. Oxygen

D. Carbon

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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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Which gas is responsible for the rotten egg smell?

A. Oxygen

B. Carbon monoxide

C. Sulfur dioxide

D. Hydrogen sulfide

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4

What is the chemical formula for table salt?

A. NaCl

B. H2O

C. CO2

D. CH4

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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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4

What is the chemical symbol for gold?

A. Ag

B. Go

C. Au

D. Gd

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4

Which of the following is a greenhouse gas?

A. Oxygen

B. Nitrogen

C. Carbon dioxide

D. Argon

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4

What is the chemical formula for carbon monoxide?

A. CO2

B. CH4

C. CO

D. C2O

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What is the chemical formula for carbon dioxide?

A. CO2

B. CH4

C. CO

D. C2O

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Which gas is produced during photosynthesis?

A. Oxygen

B. Carbon dioxide

C. Nitrogen

D. Hydrogen

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4

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

A. Oxygen

B. Silicon

C. Carbon

D. Hydrogen

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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 methane?

A. CH4

B. CO2

C. H2O

D. NH3

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4

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 sodium chloride?

A. NaCl

B. Na2Cl

C. NaCl2

D. Na2Cl2

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4

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

A. HCl

B. H2SO4

C. CH3COOH

D. HNO3

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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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4

Which gas is used in the process of photosynthesis?

A. Carbon dioxide

B. Oxygen

C. Nitrogen

D. Hydrogen

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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

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What is the chemical formula for sodium hydroxide?

A. NaOH

B. HCl

C. Na2CO3

D. H2SO4

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4

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 hydrogen peroxide?

A. H2O2

B. H2SO4

C. HCl

D. NH3

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What is the chemical formula for hydrogen gas?

A. H2

B. O2

C. N2

D. CO2