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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
Practice under a timer and review weak areas after every test to improve both speed and accuracy.
NTS preparation illustration
741
Chemistry Medium Uploaded: 06 Aug 2026

What is the general formula for alkanes?

  • ACnH2n+2
  • BCnH2n
  • CCnH2n-2
  • DCnHn
742
Chemistry Medium Uploaded: 06 Aug 2026

Which compound is commonly known as marsh gas?

  • AEthane
  • BPropane
  • CMethane
  • DButane
743
Chemistry Hard Uploaded: 06 Aug 2026

What is the term for elements with the same number of protons but different numbers of neutrons?

  • AAllotropes
  • BIsomers
  • CIsobars
  • DIsotopes
744
Chemistry Medium Uploaded: 06 Aug 2026

Which type of chemical bond is found in metals?

  • AIonic bond
  • BCovalent bond
  • CMetallic bond
  • DHydrogen bond
745
Chemistry Hard Uploaded: 06 Aug 2026

What is the oxidation state of oxygen in most compounds?

  • A-2
  • B-1
  • C+1
  • D+2
746
Chemistry Easy Uploaded: 06 Aug 2026

Which subatomic particle has no electric charge?

  • ANeutron
  • BElectron
  • CProton
  • DIon
747
Chemistry Easy Uploaded: 06 Aug 2026

What type of reaction occurs when an acid reacts with a base?

  • ANeutralization
  • BOxidation
  • CCombustion
  • DDecomposition
748
Chemistry Medium Uploaded: 06 Aug 2026

Which acid is commonly found in the human stomach?

  • ASulfuric acid
  • BAcetic acid
  • CHydrochloric acid
  • DNitric acid
749
Chemistry Medium Uploaded: 06 Aug 2026

What is the process called when a solid changes directly to a gas?

  • AEvaporation
  • BSublimation
  • CCondensation
  • DDeposition
750
Chemistry Easy Uploaded: 06 Aug 2026

Which particle has a negative charge?

  • AProton
  • BElectron
  • CNeutron
  • DPositron