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FPSC MCQs

Federal Public Service Commission — Complete MCQ Bank

154 Questions
Exam Preparation Guide

How to prepare for FPSC

FPSC recruitment tests assess subject knowledge, general ability and job-related competence for federal government positions across Pakistan.

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Read the official syllabus first, then combine subject-specific revision with timed mixed-question practice.
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121
Chemistry Medium Uploaded: 14 Jul 2026

Which gas is responsible for the distinctive smell of rotten eggs?

  • AMethane
  • BHydrogen sulfide
  • CAmmonia
  • DSulfur dioxide
122
Chemistry Medium Uploaded: 14 Jul 2026

What is the chemical formula for ethanol the type of alcohol found in beverages?

  • AC2H5OH
  • BCH3OH
  • CC3H7OH
  • DC4H9OH
123
Chemistry Medium Uploaded: 14 Jul 2026

Which chemical process is used to extract metals from their ores using carbon or electrolysis?

  • AReduction
  • BOxidation
  • CNeutralisation
  • DChromatography
124
Chemistry Medium Uploaded: 14 Jul 2026

What is the chemical formula for rust formed on iron?

  • AFe2O
  • BFe3O4
  • CFeO
  • DFe2O3
125
Chemistry Medium Uploaded: 14 Jul 2026

Which type of chemical bond exists between water molecules causing its unusually high boiling point?

  • ACovalent bond
  • BHydrogen bond
  • CIonic bond
  • DVan der Waals force
126
Chemistry Easy Uploaded: 14 Jul 2026

Which acid is present in the human stomach to aid digestion?

  • ASulfuric acid
  • BNitric acid
  • CAcetic acid
  • DHydrochloric acid
127
Chemistry Medium Uploaded: 14 Jul 2026

What is the chemical formula for calcium carbonate found in limestone and chalk?

  • ACaSO4
  • BCa(OH)2
  • CCaCl2
  • DCaCO3
128
Chemistry Medium Uploaded: 14 Jul 2026

Which isotope of carbon is used in radiocarbon dating?

  • ACarbon-12
  • BCarbon-13
  • CCarbon-11
  • DCarbon-14
129
Chemistry Medium Uploaded: 14 Jul 2026

What is an isotope?

  • AAtoms of different elements with the same mass
  • BAtoms of the same element with different numbers of protons
  • CAtoms of the same element with the same number of protons but different neutrons
  • DAtoms of different elements with the same electrons
130
Chemistry Hard Uploaded: 14 Jul 2026

Which element has the highest electronegativity on the Pauling scale?

  • AOxygen
  • BChlorine
  • CNitrogen
  • DFluorine