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Inorganic Chemistry MCQs

Master fundamental concepts of Inorganic Chemistry with our topic-wise Inorganic Chemistry MCQs, ideal for students and professionals preparing for competitive exams. These multiple-choice questions cover periodic table trends, chemical bonding, coordination compounds, transition elements, acids and bases, oxidation states, group properties, metallurgy, salt analysis, and qualitative inorganic analysis. Perfect for candidates appearing in PPSC, FPSC, CSS, NTS, SPSC, BPSC, KPSC, ETEA, AJKPSC, and exams for Lecturer Chemistry, laboratory analyst roles, and BSc/MSc Chemistry programs.

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1 Inorganic Chemistry MCQs

The word “Phosphorus” comes from Greek. What does it mean?

  • Light bearing
  • Fire
  • Impure
  • Tetrahedral
0 Comments
Correct Answer: A. Light bearing

Explanation:

Phosphorus, an essential chemical element with the symbol P, was discovered in 1669 ... Read More Details

2 Inorganic Chemistry MCQs

Which allotropic form of phosphorus is poisonous?

  • White phosphorus
  • Red phosphorus
  • Black phosphorus
  • Violet phosphorus
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Correct Answer: A. White phosphorus

Explanation:

Phosphorus exists in several allotropic forms, including white, red, black, and violet phosphorus. ... Read More Details

3 Inorganic Chemistry MCQs

When phosphorous acid is heated, it decomposes to form phosphoric acid and ?

  • Phosphine
  • Phosphorus
  • Water
  • Phosphorus pentoxide
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Correct Answer: A. Phosphine

Explanation:

Phosphorous acid (H₃PO₃) is an important oxyacid of phosphorus that exhibits both acidic ... Read More Details

4 Inorganic Chemistry MCQs

Phosphorus pentoxide (P₂O₅) is a hygroscopic powder that sublimes at __________.

  • 260°C
  • 360°C
  • 630°C
  • 620°C
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Correct Answer: B. 360°C

Explanation:

Phosphorus pentoxide (P₂O₅) is one of the most important oxides of phosphorus. It ... Read More Details

5 Inorganic Chemistry MCQs

Phosphoric acid is a weak acid, and its basicity is __________.

  • 1
  • 3
  • 0
  • 2
0 Comments
Correct Answer: B. 3

Explanation:

Phosphoric acid (H₃PO₄) is an oxyacid of phosphorus and is classified as a ... Read More Details

6 Inorganic Chemistry MCQs

All the elements in Group VIA (Group 16) of the periodic table are __________ in nature.

  • Hygroscopic
  • Metals
  • Polymeric
  • Non-metals
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Correct Answer: C. Polymeric

Explanation:

Group 16 elements, known as chalcogens, include oxygen (O), sulfur (S), selenium (Se), ... Read More Details

7 Inorganic Chemistry MCQs

Which allotropic form of phosphorus is the most stable?

  • White phosphorus
  • Black phosphorus
  • Red phosphorus
  • Violet phosphorus
0 Comments
Correct Answer: B. Black phosphorus

Explanation:

Phosphorus exists in several allotropic forms, including white, red, violet, and black phosphorus, ... Read More Details

8 Inorganic Chemistry MCQs

What is the chemical composition of Cinnabar?

  • ZnS
  • PbS
  • HgS
  • FeS
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Correct Answer: C. HgS

Explanation:

Cinnabar is a naturally occurring mineral with the chemical formula HgS (mercury(II) sulfide). ... Read More Details

9 Inorganic Chemistry MCQs

Oxygen and sulfur resemble each other in all respects except ____________?

  • Electronic configuration of valence shell electrons
  • Show allotropy
  • Polymeric nature
  • Show same oxidation states
0 Comments
Correct Answer: D. Show same oxidation states

Explanation:

Oxygen (O) and sulfur (S) are both elements of Group 16 (the oxygen ... Read More Details

10 Inorganic Chemistry MCQs

Arsenic oxides are removed by passing them through ?

  • Ferric hydroxide
  • Sodium hydroxide
  • Calcium hydroxide
  • Aluminium hydroxide
0 Comments
Correct Answer: A. Ferric hydroxide

Explanation:

Arsenic oxides, such as arsenious oxide (As₂O₃) and arsenic pentoxide (As₂O₅), are toxic ... Read More Details

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