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NTS MCQs

National Testing Service — Complete MCQ Bank

1,949 Questions
Exam Preparation Guide

How to prepare for NTS

NTS tests evaluate aptitude, analytical reasoning, quantitative ability, English and subject knowledge for admissions, scholarships and recruitment.

EnglishQuantitative SkillsAnalytical ReasoningSubject Knowledge
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NTS preparation illustration
1101
Chemistry Medium Uploaded: 14 Jul 2026

Which particle determines the chemical properties of an element?

  • ANeutron
  • BElectron
  • CProton
  • DNucleus
1102
Chemistry Easy Uploaded: 14 Jul 2026

Which gas has the chemical formula CO2?

  • ACarbon dioxide
  • BCarbon monoxide
  • CSulfur dioxide
  • DNitrogen dioxide
1103
Chemistry Easy Uploaded: 14 Jul 2026

What is the atomic number of oxygen?

  • A6
  • B10
  • C8
  • D16
1104
Chemistry Medium Uploaded: 14 Jul 2026

Which law states that matter can neither be created nor destroyed in a chemical reaction?

  • ALaw of Definite Proportions
  • BLaw of Multiple Proportions
  • CLaw of Conservation of Mass
  • DLaw of Combining Volumes
1105
Chemistry Easy Uploaded: 14 Jul 2026

What is the chemical formula for sulfuric acid?

  • AH2SO4
  • BHNO3
  • CHCl
  • DH3PO4
1106
Chemistry Medium Uploaded: 14 Jul 2026

Which type of bond involves the complete transfer of electrons from one atom to another?

  • ACovalent bond
  • BIonic bond
  • CMetallic bond
  • DHydrogen bond
1107
Chemistry Easy Uploaded: 14 Jul 2026

What is the pH of pure water at 25 degrees Celsius?

  • A5
  • B9
  • C7
  • D14
1108
Chemistry Easy Uploaded: 14 Jul 2026

Which element is the most abundant in the universe?

  • AHydrogen
  • BHelium
  • CCarbon
  • DOxygen
1109
Chemistry Easy Uploaded: 14 Jul 2026

What is the chemical formula for common table salt?

  • AKCl
  • BCaCl2
  • CMgCl2
  • DNaCl
1110
Chemistry Easy Uploaded: 14 Jul 2026

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

  • AOxygen
  • BHydrogen
  • CNitrogen
  • DCarbon dioxide