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The thick white and yellowish clouds of the planet Venus are made up of which of the following acids?
Question

The thick white and yellowish clouds of the planet Venus are made up of which of the following acids?

A.

Sulphuric acid

B.

Nitric acid

C.

Hydrochloric acid

D.

Acetic acid

Correct option is A

Correct Answer: A (Sulphuric acid)

Explanation:

The thick white and yellowish clouds on Venus are primarily composed of droplets of sulphuric acid (H₂SO₄). These clouds are formed due to the interaction of sulfur dioxide (SO₂) and water in the planet's atmosphere, catalyzed by sunlight.

  1. Venus's atmosphere is composed predominantly of carbon dioxide (96.5%), with traces of nitrogen and sulfur dioxide.
  2. The sulfuric acid clouds are highly reflective and contribute to Venus's high albedo (brightness).
  3. These clouds are so dense and thick that they completely cover the planet, preventing direct observation of its surface from space.
  4. Sulphuric acid clouds are responsible for Venus's extreme greenhouse effect, which causes surface temperatures to reach about 475°C (900°F).

Information Booster:

  • Venus's atmosphere is 90 times denser than Earth's atmosphere.
  •  The sulphuric acid clouds contribute to a runaway greenhouse effect, trapping immense heat.
  • Sulfuric acid droplets in the clouds reflect sunlight, giving Venus its bright appearance in the night sky.
  •  Venus experiences acid rain, but the droplets evaporate before reaching the surface due to extreme heat.
  • Despite its inhospitable conditions, Venus is considered a "sister planet" to Earth due to its similar size and mass.

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