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PPSC MCQs

Punjab Public Service Commission — Complete MCQ Bank

96 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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91
Chemistry Easy

Which element is the most abundant in the universe?

  • AHydrogen
  • BHelium
  • CCarbon
  • DOxygen
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Correct Answer: Option A — Hydrogen
Explanation: Hydrogen is the most abundant element in the universe making up approximately 75 percent of all normal matter by mass and is the primary fuel for nuclear fusion in stars.
Submitted by: PaperMCQs
92
Chemistry Easy

What is the chemical formula for common table salt?

  • AKCl
  • BCaCl2
  • CMgCl2
  • DNaCl
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Correct Answer: Option D — NaCl
Explanation: Common table salt has the chemical formula NaCl or sodium chloride formed from the ionic bond between positively charged sodium ions and negatively charged chloride ions.
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93
Chemistry Easy

Which gas is produced when an acid reacts with a metal?

  • AOxygen
  • BHydrogen
  • CNitrogen
  • DCarbon dioxide
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Correct Answer: Option B — Hydrogen
Explanation: When acids react with metals hydrogen gas is produced along with a salt for example zinc reacting with hydrochloric acid produces zinc chloride and hydrogen gas.
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94
Chemistry Easy

What is the atomic number of carbon?

  • A4
  • B6
  • C8
  • D12
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Correct Answer: Option B — 6
Explanation: Carbon has an atomic number of 6 meaning it has 6 protons in its nucleus and 6 electrons in its neutral state making it the basis of all organic chemistry.
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95
Chemistry Easy

What is the chemical symbol for water?

  • AH2
  • BHO2
  • CH3O
  • DH2O
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Correct Answer: Option D — H2O
Explanation: Water has the chemical formula H2O consisting of two hydrogen atoms bonded to one oxygen atom through covalent bonds forming a polar molecule.
Submitted by: PaperMCQs
96
Chemistry Easy

Which scientist is known as the Father of Modern Chemistry?

  • AIsaac Newton
  • BRobert Boyle
  • CJohn Dalton
  • DAntoine Lavoisier
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Correct Answer: Option D — Antoine Lavoisier
Explanation: Antoine Lavoisier is known as the Father of Modern Chemistry for establishing the law of conservation of mass and developing a systematic chemical nomenclature.
Submitted by: PaperMCQs
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