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PPSC MCQs

Punjab Public Service Commission — Complete MCQ Bank

1,997 Questions
Exam Preparation Guide

How to prepare for PPSC

PPSC examinations recruit candidates for Punjab government departments and commonly test general knowledge, current affairs, English and post-related subjects.

Punjab AffairsGeneral KnowledgeCurrent AffairsEnglish
Give special attention to Punjab geography, history and administration alongside the advertised post’s specialist syllabus.
PPSC preparation illustration
1051
Chemistry Easy Uploaded: 14 Jul 2026

What is the lightest element in the periodic table?

  • AHelium
  • BHydrogen
  • CLithium
  • DBeryllium
1052
Chemistry Easy Uploaded: 14 Jul 2026

What is the name of the process by which a liquid changes to a gas at its boiling point?

  • AVaporisation
  • BSublimation
  • CCondensation
  • DFreezing
1053
Chemistry Medium Uploaded: 14 Jul 2026

Which particle determines the chemical properties of an element?

  • ANeutron
  • BElectron
  • CProton
  • DNucleus
1054
Chemistry Easy Uploaded: 14 Jul 2026

Which gas has the chemical formula CO2?

  • ACarbon dioxide
  • BCarbon monoxide
  • CSulfur dioxide
  • DNitrogen dioxide
1055
Chemistry Easy Uploaded: 14 Jul 2026

What is the atomic number of oxygen?

  • A6
  • B10
  • C8
  • D16
1056
Chemistry Medium Uploaded: 14 Jul 2026

Which law states that matter can neither be created nor destroyed in a chemical reaction?

  • ALaw of Definite Proportions
  • BLaw of Multiple Proportions
  • CLaw of Conservation of Mass
  • DLaw of Combining Volumes
1057
Chemistry Easy Uploaded: 14 Jul 2026

What is the chemical formula for sulfuric acid?

  • AH2SO4
  • BHNO3
  • CHCl
  • DH3PO4
1058
Chemistry Medium Uploaded: 14 Jul 2026

Which type of bond involves the complete transfer of electrons from one atom to another?

  • ACovalent bond
  • BIonic bond
  • CMetallic bond
  • DHydrogen bond
1059
Chemistry Easy Uploaded: 14 Jul 2026

What is the pH of pure water at 25 degrees Celsius?

  • A5
  • B9
  • C7
  • D14
1060
Chemistry Easy Uploaded: 14 Jul 2026

Which element is the most abundant in the universe?

  • AHydrogen
  • BHelium
  • CCarbon
  • DOxygen