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PPSC MCQs

Punjab Public Service Commission — Complete MCQ Bank

164 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.
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101
Chemistry Medium Uploaded: 14 Jul 2026

Which scientific law states that equal volumes of all gases at the same temperature and pressure contain equal numbers of molecules?

  • ABoyle's Law
  • BGay-Lussac's Law
  • CAvogadro's Law
  • DCharles's Law
102
Chemistry Medium Uploaded: 14 Jul 2026

Which type of reaction occurs when a more reactive metal displaces a less reactive metal from its salt solution?

  • ADecomposition
  • BNeutralisation
  • CCombustion
  • DDisplacement
103
Chemistry Hard Uploaded: 14 Jul 2026

What is the chemical formula for potassium permanganate a strong oxidising agent?

  • AKMnO4
  • BK2MnO4
  • CK2SO4
  • DK2Cr2O7
104
Chemistry Hard Uploaded: 14 Jul 2026

Which synthetic polymer was the first to be produced commercially and is used to make electrical fittings?

  • ANylon
  • BPVC
  • CBakelite
  • DPolythene
105
Chemistry Medium Uploaded: 14 Jul 2026

Which polymer is used to make plastic water bottles and is identified by recycling code 1?

  • APET polyethylene terephthalate
  • BPVC
  • CPolystyrene
  • DPolypropylene
106
Chemistry Hard Uploaded: 14 Jul 2026

What is the chemical formula for bleaching powder used in water purification?

  • ACa(OH)2
  • BCaCO3
  • CCa(OCl)Cl
  • DCaCl2
107
Chemistry Medium Uploaded: 14 Jul 2026

What is saponification in chemistry?

  • AMaking soap by reacting fats with a strong alkali
  • BConversion of oils to alcohol
  • CAdding hydrogen to unsaturated fats
  • DMaking esters from acids and alcohols
108
Chemistry Medium Uploaded: 14 Jul 2026

Which process converts vegetable oils into solid fats by adding hydrogen in the presence of a nickel catalyst?

  • ASaponification
  • BHydrogenation
  • CEsterification
  • DFermentation
109
Chemistry Medium Uploaded: 14 Jul 2026

What is the chemical name of aspirin widely used as a pain reliever?

  • AParacetamol
  • BAcetylsalicylic acid
  • CIbuprofen
  • DSalicylic acid
110
Chemistry Hard Uploaded: 14 Jul 2026

Which type of isomerism involves compounds with the same molecular formula but different structural arrangements?

  • AStructural isomerism
  • BOptical isomerism
  • CGeometric isomerism
  • DDynamic isomerism