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1 Islamic Studies MCQs

What is the most disliked thing by Allah Ta’ala?

  • Murder
  • Backbiting
  • Listening to songs
  • Divorce
0 Comments
Correct Answer: D. Divorce

Explanation:

In Islam, marriage is regarded as a sacred bond based on love, mercy, ... Read More Details

2 Organic Chemistry MCQs

The reaction with Lucas reagent is fastest with which alcohol?

  • (CH₃)₂CHOH (Secondary alcohol)
  • CH₃(CH₂)OH (Long-chain primary alcohol)
  • CH₃CH₂OH (Primary alcohol)
  • (CH₃)₃COH (Tertiary alcohol)
0 Comments
Correct Answer: D. (CH₃)₃COH (Tertiary alcohol)

Explanation:

The Lucas test is a classical method in organic chemistry for distinguishing between ... Read More Details

3 Analytical Chemistry MCQs

If a compound contains 24 g of carbon, 2 g of hydrogen, and 64 g of oxygen, what will be its empirical formula?

  • C₂H₂O₄
  • CH₂
  • CH₂O
  • CHO₂
0 Comments
Correct Answer: D. CHO₂

Explanation:

The empirical formula of a compound represents the simplest whole-number ratio of atoms ... Read More Details

4 Inorganic Chemistry MCQs

Why are noble gases called the zero group elements?

  • Zero valency
  • Zero electronegativity
  • Zero electron affinity
  • Both A and B
0 Comments
Correct Answer: D. Both A and B

Explanation:

Noble gases, also known as Group 18 elements in the modern periodic table, ... Read More Details

5 Inorganic Chemistry MCQs

What is the chemical symbol of Tungsten?

  • Z
  • T
  • Tn
  • W
0 Comments
Correct Answer: D. W

Explanation:

Tungsten is a transition metal in the periodic table, with atomic number 74. ... Read More Details

6 Inorganic Chemistry MCQs

The composition of “Golden Spangles” is:

  • Lead(II) chromate (PbCrO₄)
  • Lead(II) iodide (PbI₂)
  • Arsenic dichromate (As₂Cr₂O₇)
  • Barium chromate (BaCrO₄)
0 Comments
Correct Answer: A. Lead(II) chromate (PbCrO₄)

Explanation:

Golden Spangles is the common name given to Lead(II) chromate (PbCrO₄), an inorganic ... Read More Details

7 Inorganic Chemistry MCQs

When SO₂ solution is passed over which of the following substances does it turn green?

  • Potassium dichromate (K₂Cr₂O₇)
  • Sulfuric acid (H₂SO₄)
  • Sulfur trioxide (SO₃)
  • Phosphorus pentoxide (P₂O₅)
0 Comments
Correct Answer: A. Potassium dichromate (K₂Cr₂O₇)

Explanation:

This reaction is an important example of redox chemistry in inorganic chemistry. Sulfur ... Read More Details

8 Analytical Chemistry MCQs

A bivalent metal has an equivalent weight of 12. The molecular weight of its oxide will be:

  • 24
  • 32
  • 36
  • 40
0 Comments
Correct Answer: D. 40

Explanation:

This question is a classical application of the concept of equivalent weight and ... Read More Details

9 Analytical Chemistry MCQs

The weight of a metal with an equivalent weight of 12 that will give 0.475 g of its chloride is:

  • 0.12 g
  • 0.16 g
  • 0.18 g
  • 0.24 g
0 Comments
Correct Answer: C. 0.18 g

Explanation:

This problem is based on the law of chemical equivalence, which is widely ... Read More Details

10 Physical Chemistry MCQs

The amount of Zinc (at. wt = 65) necessary to produce 224 mL of H₂ gas by reaction with an acid is?

  • 0.065 g
  • 0.65 g
  • 6.5 g
  • 7.5 g
0 Comments
Correct Answer: D. 7.5 g

Explanation:

Zinc reacts with acids such as hydrochloric acid or sulfuric acid to liberate ... Read More Details