Join WhatsApp ChannelDaily MCQs & Exam Updates

NTS MCQs

National Testing Service — Complete MCQ Bank

1,084 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.
Start PracticingTake a Mock Test
NTS preparation illustration
All Subjects Biology Chemistry Computer Science Current Affairs English Everyday Science General Knowledge Islamic Studies Mathematics Pakistan Studies Physics
181
Biology Easy

Which scientist is known as the Father of Biology?

  • ACharles Darwin
  • BGregor Mendel
  • CAristotle
  • DLouis Pasteur
Permalink
Correct Answer: Option C — Aristotle
Explanation: Aristotle is widely regarded as the Father of Biology for his systematic study and classification of living organisms in ancient Greece making him the first to create a scientific framework for biology.
Submitted by: PaperMCQs
182
Chemistry Easy

What is the chemical symbol for lead?

  • APb
  • BLd
  • CLe
  • DLi
Permalink
Correct Answer: Option A — Pb
Explanation: The chemical symbol for lead is Pb derived from the Latin word Plumbum and lead is a dense heavy metal with atomic number 82 used in batteries and radiation shielding.
Submitted by: PaperMCQs
183
Chemistry Easy

Which gas turns limewater milky when bubbled through it?

  • AOxygen
  • BCarbon dioxide
  • CHydrogen
  • DSulfur dioxide
Permalink
Correct Answer: Option B — Carbon dioxide
Explanation: Carbon dioxide turns limewater milky when bubbled through it as it reacts with calcium hydroxide to produce insoluble calcium carbonate as a white precipitate.
Submitted by: PaperMCQs
184
Chemistry Easy

Which process converts sugar into alcohol and carbon dioxide using yeast?

  • ADistillation
  • BHydrogenation
  • CSaponification
  • DFermentation
Permalink
Correct Answer: Option D — Fermentation
Explanation: Fermentation is the anaerobic process by which yeast converts sugars into ethanol and carbon dioxide producing alcoholic beverages and is also used in bread making.
Submitted by: PaperMCQs
185
Chemistry Medium

What is the chemical name of the compound with formula Na2SO4?

  • ASodium sulfite
  • BSodium sulfate
  • CSodium sulfide
  • DSodium bisulfate
Permalink
Correct Answer: Option B — Sodium sulfate
Explanation: Na2SO4 is sodium sulfate also known as Glauber's salt and is used in the manufacture of detergents glass paper pulp and as a drying agent in organic chemistry.
Submitted by: PaperMCQs
186
Chemistry Easy

Which indicator turns red in acidic solutions and blue in alkaline solutions?

  • ALitmus
  • BUniversal indicator
  • CPhenolphthalein
  • DMethyl orange
Permalink
Correct Answer: Option A — Litmus
Explanation: Litmus is a natural pH indicator derived from lichens that turns red in acidic solutions with pH below 7 and blue in alkaline solutions with pH above 7.
Submitted by: PaperMCQs
187
Chemistry Medium

What is the chemical formula for calcium hydroxide also known as slaked lime?

  • ACaO
  • BCaCO3
  • CCa(OH)2
  • DCaCl2
Permalink
Correct Answer: Option C — Ca(OH)2
Explanation: Calcium hydroxide Ca(OH)2 also called slaked lime is made by adding water to quicklime CaO and is used in construction water treatment and to neutralise acidic soils.
Submitted by: PaperMCQs
188
Chemistry Medium

Which acid is used in car batteries as the electrolyte?

  • ASulfuric acid
  • BHydrochloric acid
  • CNitric acid
  • DAcetic acid
Permalink
Correct Answer: Option A — Sulfuric acid
Explanation: Sulfuric acid H2SO4 is used as the electrolyte in lead-acid car batteries where it facilitates the electrochemical reactions between lead electrodes to store and release electrical energy.
Submitted by: PaperMCQs
189
Chemistry Medium

What is the chemical formula for sulfur dioxide a gas that causes acid rain?

  • ASO3
  • BS2O
  • CSO
  • DSO2
Permalink
Correct Answer: Option D — SO2
Explanation: Sulfur dioxide SO2 is produced by burning fossil fuels containing sulfur and when it reacts with atmospheric moisture it forms sulfurous and sulfuric acid contributing to acid rain.
Submitted by: PaperMCQs
190
Chemistry Easy

Which test is used to detect the presence of starch using iodine solution?

  • ABenedict's test
  • BBiuret test
  • CIodine test
  • DFlame test
Permalink
Correct Answer: Option C — Iodine test
Explanation: The iodine test detects starch by turning iodine solution from yellow-brown to blue-black in the presence of starch due to the triiodide ion fitting within the starch helix.
Submitted by: PaperMCQs
Other Exams
CSS MCQs PMS MCQs FPSC MCQs PPSC MCQs NTS MCQs
Mock Tests
Quick Test (20 Q) Full Mock (60 Q)