info@jobexams.pk
Job Exams Hero

Master Your JobExams with Confidence

Access thousands of practice questions, and improve your test-taking skills with our comprehensive MCQ platform. Whether you're preparing for FPSC, NTS, PPSC, CSS, or any other job test, Jobexams provides the study material you need to succeed. Start practicing now and boost your chances of acing your exams!

Browse Categories
Quick Results 0 found

Question Coming Soon!

"" isn't in our database yet, but we're adding new questions daily.

1 Inorganic Chemistry MCQs

Which one of the following hydroxides is least ionic in nature and decomposes on heating?

  • Lithium hydroxide (LiOH)
  • Sodium hydroxide (NaOH)
  • Potassium hydroxide (KOH)
  • Cesium hydroxide (CsOH)
0 Comments
Correct Answer: A. Lithium hydroxide (LiOH)

Explanation:

Among alkali metal hydroxides, the ionic character depends on the size of the ... Read More Details

2 Inorganic Chemistry MCQs

The word “Alkali” means ?

  • Base
  • Basic salt
  • Ashes
  • Spirit
0 Comments
Correct Answer: C. Ashes

Explanation:

The term “alkali” has historical significance in chemistry. It comes from the Arabic ... Read More Details

3 Inorganic Chemistry MCQs

Which element is necessary for normal leaf development in plants?

  • Silicon (Si)
  • Barium (Ba)
  • Magnesium (Mg)
  • Calcium (Ca)
0 Comments
Correct Answer: D. Calcium (Ca)

Explanation:

Calcium (Ca) is a crucial nutrient for plants, playing a significant role in ... Read More Details

4 Inorganic Chemistry MCQs

Nitrates of which pair of elements give different products on thermal decomposition?

  • Na and K
  • Mg and Ca
  • Li and Na
  • Li and Ca
0 Comments
Correct Answer: C. Li and Na

Explanation:

The thermal decomposition of nitrates depends on the metal cation in the compound. ... Read More Details

5 Inorganic Chemistry MCQs

Which of the following sulphates is not soluble in water?

  • Sodium sulphate (Na₂SO₄)
  • Potassium sulphate (K₂SO₄)
  • Zinc sulphate (ZnSO₄)
  • Barium sulphate (BaSO₄)
0 Comments
Correct Answer: D. Barium sulphate (BaSO₄)

Explanation:

The solubility of sulphates in water varies depending on the metal cation present. ... Read More Details

6 Inorganic Chemistry MCQs

The ore CaSO₄·H₂O has the general name ?

  • Gypsum
  • Dolomite
  • Calcite
  • Plaster of Paris
0 Comments
Correct Answer: A. Gypsum

Explanation:

Gypsum is a naturally occurring mineral composed of calcium sulfate dihydrate (CaSO₄·2H₂O). The ... Read More Details

7 Inorganic Chemistry MCQs

Which one of the following substances conducts electricity by the movement of ions?

  • Graphite
  • Copper
  • Molten sodium chloride (NaCl)
  • Mercury
0 Comments
Correct Answer: C. Molten sodium chloride (NaCl)

Explanation:

Electricity conduction depends on the presence of mobile charge carriers. In substances like ... Read More Details

8 Inorganic Chemistry MCQs

Which one of the following carbonates is water insoluble?

  • Na₂CO₃
  • K₂CO₃
  • (NH₄)₂CO₃
  • CaCO₃
0 Comments
Correct Answer: D. CaCO₃

Explanation:

Calcium carbonate (CaCO₃) is a sparingly soluble or practically insoluble carbonate in water, ... Read More Details

9 Inorganic Chemistry MCQs

In a diaphragm cell, hydrogen is discharged by the reduction of ?

  • Water
  • Hydrochloric acid (HCl)
  • Sodium ion (Na⁺)
  • Sodium chloride (NaCl)
0 Comments
Correct Answer: A. Water

Explanation:

The diaphragm cell is an electrolytic cell used mainly for the electrolysis of ... Read More Details

10 Inorganic Chemistry MCQs

Gypsum is applied to the soil as a source of ?

  • Calcium (Ca) and Phosphorus (P)
  • Sulphur (S) and Phosphorus (P)
  • Calcium (Ca) and Sulphur (S)
  • We could not apply
0 Comments
Correct Answer: C. Calcium (Ca) and Sulphur (S)

Explanation:

Gypsum, chemically known as calcium sulphate dihydrate (CaSO₄·2H₂O), is an important mineral used ... Read More Details

Question Categories
General Knowledge Category MCQ'S
Computer Category MCQ'S
Chemistry Category MCQ'S
Pak Departmental Laws & Rules MCQs
Management Sciences MCQs