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1 PERA MCQ's

The Punjab Enforcement and Regulation Bill 2024 was officially published as an Act on:

  • 9 October 2024
  • 11 October 2024
  • 16 October 2024
  • 17 October 2024
0 Comments
Correct Answer: D. 17 October 2024

Explanation:

The Punjab Enforcement and Regulation Bill 2024 was officially published as an Act on 17 ... Read More Details

2 PERA MCQ's

The Governor of Punjab assented to the Punjab Enforcement and Regulation Bill 2024 on:

  • 11 October 2024
  • 12 October 2024
  • 16 October 2024
  • 17 October 2024
0 Comments
Correct Answer: C. 16 October 2024

Explanation:

The Governor of Punjab assented to the Punjab Enforcement and Regulation Bill 2024 on 16 ... Read More Details

3 Inorganic Chemistry MCQs

Which of the following noble gases is not normally present in the atmosphere?

  • Argon
  • Helium
  • Radon
  • Xenon
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Correct Answer: C. Radon

Explanation:

The correct answer is Radon. Unlike other noble gases such as argon, helium, ... Read More Details

4 Inorganic Chemistry MCQs

Which of the following noble gases is most abundant in air?

  • Neon
  • Helium
  • Argon
  • Methane
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Correct Answer: C. Argon

Explanation:

The correct answer is Argon. Among the noble gases, Argon is the most ... Read More Details

5 Physical Chemistry MCQs

Equal volumes of gases at the same temperature and pressure contain equal number of molecules. Which law?

  • Boyle’s Law
  • Charles’ Law
  • Gay-Lussac’s Law
  • Avogadro’s Law
0 Comments
Correct Answer: D. Avogadro’s Law

Explanation:

The correct answer is Avogadro’s Law. This fundamental gas law explains that equal ... Read More Details

6 Physical Chemistry MCQs

At constant pressure, gas volume is directly proportional to Kelvin temperature. Which law?

  • Charles’ Law
  • Avogadro’s Law
  • Graham’s Law
  • Boyle’s Law
0 Comments
Correct Answer: A. Charles’ Law

Explanation:

The correct answer is Charles’ Law. This law describes the direct relationship between ... Read More Details

7 Physical Chemistry MCQs

Which law states that the rate of effusion of a gas is inversely proportional to the square root of its density?

  • Graham’s Law
  • Gay-Lussac’s Law
  • Boyle’s Law
  • None of these
0 Comments
Correct Answer: A. Graham’s Law

Explanation:

Graham’s Law of Effusion is a fundamental principle in physical chemistry that explains ... Read More Details

8 Organic Chemistry MCQs

What is the valency of a carbon atom?

  • 1
  • 2
  • 3
  • 4
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Correct Answer: D. 4

Explanation:

The concept of valency refers to the combining capacity of an atom, which ... Read More Details

9 Inorganic Chemistry MCQs

What is the chemical formula of Zinc Hydroxide?

  • Zn(OH)₂
  • ZnO₂
  • Zn₂(OH)₃
  • ZnOH
0 Comments
Correct Answer: A. Zn(OH)₂

Explanation:

Zinc hydroxide is an inorganic compound formed when zinc ions (Zn²⁺) combine with ... Read More Details

10 Environmental Chemistry MCQs

Permanent hardness of water, caused by the sulphates of metals, can be removed by using ________?

  • Zeolites
  • Sulphonides
  • Lime
  • Nitrates
0 Comments
Correct Answer: A. Zeolites

Explanation:

Water hardness is caused by the presence of dissolved salts of calcium and ... Read More Details