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FPSC MCQs

Federal Public Service Commission — Complete MCQ Bank

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Read the official syllabus first, then combine subject-specific revision with timed mixed-question practice.
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1121
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
1122
Chemistry Hard Uploaded: 14 Jul 2026

Which element has the highest electronegativity on the Pauling scale?

  • AOxygen
  • BChlorine
  • CNitrogen
  • DFluorine
1123
Chemistry Easy Uploaded: 14 Jul 2026

What is the chemical name of NaOH?

  • ASodium chloride
  • BSodium carbonate
  • CSodium bicarbonate
  • DSodium hydroxide
1124
Chemistry Easy Uploaded: 14 Jul 2026

Which type of reaction involves an acid reacting with a base to form salt and water?

  • ADecomposition
  • BRedox
  • CNeutralisation
  • DPrecipitation
1125
Chemistry Easy Uploaded: 14 Jul 2026

What is the chemical formula for methane, the main component of natural gas?

  • AC2H6
  • BCH4
  • CC3H8
  • DC2H4
1126
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
1127
Chemistry Medium Uploaded: 14 Jul 2026

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

  • APeriods
  • BBlocks
  • CGroups
  • DRows
1128
Chemistry Medium Uploaded: 14 Jul 2026

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

  • AGroups
  • BBlocks
  • CPeriods
  • DFamilies
1129
Chemistry Medium Uploaded: 14 Jul 2026

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

  • ADistillation
  • BFiltration
  • CCrystallisation
  • DChromatography
1130
Chemistry Medium Uploaded: 14 Jul 2026

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

  • AC6H10O5
  • BC12H22O11
  • CC6H12O6
  • DC6H6O6