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1 Chemistry MCQs

A planet can retain its atmosphere when __________.

  • Gravity is low and temperature is high
  • Gravity and temperature are both high
  • Gravity and temperature are constant
  • Gravity is high and temperature is low
0 Comments
Correct Answer: D. Gravity is high and temperature is low

Explanation:

The ability of a planet to retain an atmosphere depends mainly on two ... Read More Details

2 Chemistry MCQs

Titan (moon of Saturn) and Triton (moon of Neptune) have atmospheres mainly of __________.

  • Saturn, Jupiter, Hydrogen
  • Uranus, Neptune, Nitrogen
  • Saturn, Neptune, Nitrogen
  • Mars, Venus, Hydrogen
0 Comments
Correct Answer: C. Saturn, Neptune, Nitrogen

Explanation:

Both Titan, the largest moon of Saturn, and Triton, the largest moon of ... Read More Details

3 Chemistry MCQs

What happens to Pluto’s nitrogen and methane atmosphere when it moves farther from the Sun?

  • Absent
  • Plasma
  • Frozen
  • Volatile
0 Comments
Correct Answer: C. Frozen

Explanation:

Pluto’s atmosphere is very different from Earth’s. It is thin and primarily composed ... Read More Details

4 Chemistry MCQs

Lingxi-03, developed by Galaxy Space, was launched using which carrier rocket?

  • Long March-3D
  • Long March-2D
  • Vertical March-3D
  • Orbital March-2D
0 Comments
Correct Answer: B. Long March-2D

Explanation:

The Lingxi-03 satellite, developed by the Chinese private aerospace company Galaxy Space, was ... Read More Details

5 Inorganic Chemistry MCQs

In fireworks, the green flame is produced because of which element?

  • Sodium
  • Barium
  • Mercury
  • Potassium
0 Comments
Correct Answer: B. Barium

Explanation:

The green flame seen in fireworks is produced due to the presence of ... Read More Details

6 Inorganic Chemistry MCQs

Permanent hardness of water can be removed by adding which substance?

  • Chlorine
  • Washing Soda
  • Bleaching Powder
  • None of these
0 Comments
Correct Answer: B. Washing Soda

Explanation:

Water hardness is caused mainly by dissolved salts of calcium and magnesium. Hardness ... Read More Details

7 Inorganic Chemistry MCQs

Which two elements are most commonly used for making transistors?

  • Boron and Aluminium
  • Silicon and Germanium
  • Iridium and Tungsten
  • None of these
0 Comments
Correct Answer: B. Silicon and Germanium

Explanation:

The two elements most commonly used for making transistors are silicon (Si) and ... Read More Details

8 Inorganic Chemistry MCQs

Which of the following elements was first discovered in the chromosphere of the Sun?

  • Krypton
  • Xenon
  • Neon
  • Helium
0 Comments
Correct Answer: D. Helium

Explanation:

The element that was first discovered in the chromosphere of the Sun is ... Read More Details

9 Islamic Studies MCQs

Which Prophet of Allah died while standing with the support of a stick?

  • Hazrat Sulaiman (A.S.)
  • Hazrat Musa (A.S.)
  • Hazrat Haroon (A.S.)
  • Hazrat Isa (A.S.)
0 Comments
Correct Answer: A. Hazrat Sulaiman (A.S.)

Explanation:

Hazrat Sulaiman (A.S.), also known as Prophet Solomon, is the Prophet who died while standing ... Read More Details

10 Islamic Studies MCQs

How many times did Angel Jibreel (A.S.) come to the court of the Holy Prophet Muhammad (ﷺ)?

  • 20,000
  • 21,000
  • 22,000
  • 24,000
0 Comments
Correct Answer: D. 24,000

Explanation:

According to Islamic historical sources and scholarly traditions, Angel Jibreel (A.S.) visited the Holy Prophet ... Read More Details

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