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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
1041
Chemistry Medium Uploaded: 14 Jul 2026

Which gas is used in fire extinguishers to smother flames by displacing oxygen?

  • ACarbon dioxide
  • BNitrogen
  • COxygen
  • DWater vapour
1042
Chemistry Medium Uploaded: 14 Jul 2026

What is the name of the vertical columns in the periodic table?

  • APeriods
  • BBlocks
  • CGroups
  • DRows
1043
Chemistry Medium Uploaded: 14 Jul 2026

What is the name of the horizontal rows in the periodic table?

  • AGroups
  • BBlocks
  • CPeriods
  • DFamilies
1044
Chemistry Medium Uploaded: 14 Jul 2026

Which process separates a mixture of liquids based on their different boiling points?

  • ADistillation
  • BFiltration
  • CCrystallisation
  • DChromatography
1045
Chemistry Medium Uploaded: 14 Jul 2026

What is the chemical formula for glucose, the primary energy source for cells?

  • AC6H10O5
  • BC12H22O11
  • CC6H12O6
  • DC6H6O6
1046
Chemistry Easy Uploaded: 14 Jul 2026

Which element is a liquid at room temperature and is used in thermometers?

  • ABromine
  • BGallium
  • CMercury
  • DCaesium
1047
Chemistry Easy Uploaded: 14 Jul 2026

What is the chemical formula for ammonia?

  • ANO2
  • BN2H4
  • CNH3
  • DNH4
1048
Chemistry Easy Uploaded: 14 Jul 2026

Which acid is found naturally in vinegar?

  • AAcetic acid
  • BSulfuric acid
  • CHydrochloric acid
  • DCitric acid
1049
Chemistry Medium Uploaded: 14 Jul 2026

What is the valency of carbon that makes it the basis of organic chemistry?

  • A2
  • B3
  • C4
  • D6
1050
Chemistry Medium Uploaded: 14 Jul 2026

Which type of chemical reaction involves a substance combining with oxygen to release energy?

  • AReduction
  • BOxidation
  • CNeutralisation
  • DDecomposition