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Chemistry MCQs

26 Questions Subject Test
Subject Preparation Guide

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Practice the essential concepts of matter, atomic structure, chemical reactions, bonding and everyday applications of chemistry.

Atomic StructureChemical BondingReactionsOrganic Chemistry
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21
Medium pms Uploaded: 04 Sep 2026

Corrosion of iron is essentially an example of:

  • A Sublimation
  • B Oxidation
  • C Reduction
  • D Neutralization
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22
Medium pms Uploaded: 04 Sep 2026

Which subatomic particle was discovered by J.J. Thomson?

  • A Positron
  • B Proton
  • C Neutron
  • D Electron
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23
Medium pms Uploaded: 04 Sep 2026

Which type of bonding is present in a diamond?

  • A Ionic
  • B Covalent
  • C Metallic
  • D Van der Waals
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24
Medium pms Uploaded: 04 Sep 2026

What is the conjugate base of HCl?

  • A OH-
  • B Cl-
  • C H3O+
  • D H+
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25
Medium pms Uploaded: 07 Aug 2026

Which element is known as the 'King of Chemicals'?

  • A Hydrochloric acid
  • B Acetic acid
  • C Nitric acid
  • D Sulfuric acid
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26
Medium pms Uploaded: 04 Sep 2026

VSEPR theory is used to predict:

  • A Oxidation state
  • B Molecular geometry
  • C Bond energy
  • D Reaction rate
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