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FPSC MCQs

Federal Public Service Commission — Complete MCQ Bank

2,313 Questions
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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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21
Chemistry Hard Uploaded: 04 Sep 2026

Increasing pressure on a gaseous equilibrium favors the side with:

  • AFewer moles of gas
  • BEqual moles of gas
  • CMore moles of gas
  • DNo gas molecules
22
Chemistry Medium Uploaded: 04 Sep 2026

According to the collision theory, reaction rate increases when:

  • AConcentration decreases
  • BMolecules move slower
  • CEffective collisions decrease
  • DEffective collisions increase
23
Chemistry Medium Uploaded: 04 Sep 2026

What is the standard enthalpy of formation of an element in its most stable state?

  • ANegative
  • BZero
  • CDepends on the element
  • DOne
24
Chemistry Medium Uploaded: 04 Sep 2026

What is the enthalpy change called when one mole of a compound forms from its elements?

  • AEnthalpy of solution
  • BEnthalpy of combustion
  • CEnthalpy of formation
  • DEnthalpy of neutralization
25
Chemistry Hard Uploaded: 04 Sep 2026

Which of the following is an amphoteric substance?

  • ASulfuric acid
  • BSodium hydroxide
  • CHydrochloric acid
  • DWater
26
Chemistry Medium Uploaded: 04 Sep 2026

Molarity is defined as moles of solute per:

  • AKilogram of solvent
  • BGram of solution
  • CLiter of solvent
  • DLiter of solution
27
Chemistry Easy Uploaded: 04 Sep 2026

Which law states that mass is neither created nor destroyed in a chemical reaction?

  • ALaw of multiple proportions
  • BLaw of definite proportions
  • CLaw of conservation of mass
  • DAvogadro's Law
28
Chemistry Hard Uploaded: 04 Sep 2026

Real gases deviate most from ideal behavior under which conditions?

  • ALow pressure and high temperature
  • BHigh pressure and high temperature
  • CHigh pressure and low temperature
  • DLow pressure and low temperature
29
Chemistry Easy Uploaded: 04 Sep 2026

At STP, one mole of an ideal gas occupies what volume?

  • A1 liter
  • B44.8 liters
  • C22.4 liters
  • D11.2 liters
30
Chemistry Medium Uploaded: 04 Sep 2026

Which of the following has a linear molecular shape?

  • ANH3
  • BH2O
  • CCO2
  • DCH4