Assertion and Reason MCQ

Test your knowledge with important Assertion and Reason MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30+ more Assertion and Reason MCQs on Bissoy. Bissoy App

• An assertion (A) and a reason (R) are given below. Assertion (A) : Agricultural activities are less on mountainous regions. Reason (R) : Mountains have less fertile terrain and difficult weather conditions. Choose the correct option.
  ক

  Both A and R are true and R is the correct explanation of A

  খ

  Both A and R are true, but R is not the correct explanation of A

  গ

  A is true, but R is false

  ঘ

  A is false, but R is true
• An Assertion (A) and a Reason (R) are given below. Assertion (A) : Beri-Beri is a viral infection. Reason (R) : Vitamin deficiency causes diseases. Choose the correct option.
  ক

  A is false but R is true

  খ

  A is true but R is false

  গ

  Both A and R are false

  ঘ

  Both A and R are true and R is the correct explanation of A
• Assertion(A) : Indus valley people knew the art of navigation.<br />Reason(R) : Indus valley seals indicate prevalence of overseas trade.
  ক

  R is true but A is fale

  খ

  A is true but R is false

  গ

  Both A and R are false

  ঘ

  R correctly explains A
• Assertion(A) : The steam engine was invented by James Watt.<br />Reason(R) : There was a problem of taking out water from flooded mines.
  ক

  R correctly explains A

  খ

  R is true but A is fale

  গ

  A is true but R is false

  ঘ

  Both A and R are false
• Assertion(A) : The pouring of kerosene oil on stagnant pools helps to eradicate malaria.<br />Reason(R) : The kerosene oil is poisonous for the mosquitoes.
  ক

  R correctly explains A

  খ

  R is true but A is fale

  গ

  A is true but R is false

  ঘ

  Both A and R are false
• Assertion(A) : Most of the Himalayan rivers are perennial.<br />Reason(R) : They are fed by melting snow.
  ক

  R correctly explains A

  খ

  R is true but A is fale

  গ

  A is true but R is false

  ঘ

  Both A and R are false
• Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative Assertion (A) : Eskimos reside in igloos. Reason (R) : No other material except snow is available.
  ক

  Both A and R are true and R is the correct explanation of A.

  খ

  Both A and R are true but R is NOT the correct explanation of A.

  গ

  A is true but R is false.

  ঘ

  A is false but R is true.
• Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative Assertion (A) : Pluto is the coldest planet Reason (R) : It receives slanting rays of- the sun.
  ক

  Both A and R are true and R is the correct explanation of A.

  খ

  Both A and R are true but R is NOT the correct explanation of A.

  গ

  A is true but R is false.

  ঘ

  A is false but R is true.
• Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative Assertion (A) : Pressure cookers are fitted with ebonite handles. Reason (R) : Ebonite is strong.
  ক

  Both A and R are true and R is the correct explanation of A.

  খ

  Both A and R are true but R is NOT the correct explanation of A.

  গ

  A is true but R is false.

  ঘ

  A is false but R is true.
• Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative Assertion (A) : Diamond is used for cutting glass. Reason (R) : Diamond has a high refractive index.
  ক

  Both A and R are true and R is the correct explanation of A.

  খ

  Both A and R are true but R is NOT the correct explanation of A.

  গ

  A is true but R is false.

  ঘ

  A is false but R is true.
• Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative Assertion (A) : Simla is colder than Delhi. Reason (R) : Simla is at a higher altitude as compared to Delhi.
  ক

  Both A and R are true and R is the correct explanation of A.

  খ

  Both A and R are true but R is NOT the correct explanation of A.

  গ

  A is true but R is false.

  ঘ

  A is false but R is true.
• Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative Assertion (A) : Most of the Himalayan rivers are perennial. Reason (R) : They are fed by melting snow.
  ক

  Both A and R are true and R is the correct explanation of A.

  খ

  Both A and R are true but R is NOT the correct explanation of A.

  গ

  A is true but R is false.

  ঘ

  A is false but R is true.
• Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative Assertion(A) : Tamil Nadu gets most of the rainfall in winter. Reason (R) : Tamil Nadu gets rainfall from retreating monsoons.
  ক

  Both A and R are true and R is the correct explanation of A.

  খ

  Both A and R are true but R is NOT the correct explanation of A.

  গ

  A is true but R is false.

  ঘ

  A is false but R is true.
• Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative Assertion(A) : An iron ball floats on mercury but gets immersed in water. Reason (R) : The specific gravity of iron is more than that of mercury.
  ক

  Both A and R are true and R is the correct explanation of A.

  খ

  Both A and R are true but R is NOT the correct explanation of A.

  গ

  A is true but R is false.

  ঘ

  A is false but R is true.
• Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative Assertion (A) : Leakages in household gas cylinders can be detected. Reason (R) : LPG has a strong smell.
  ক

  Both A and R are true and R is the correct explanation of A.

  খ

  Both A and R are true but R is NOT the correct explanation of A.

  গ

  A is true but R is false.

  ঘ

  A is false but R is true.
• Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative Assertion (A) : Mohammad-bin-Tughluq is called the 'wisest fool'. Reason (R) : He had wise plans but implemented them foolishly.
  ক

  Both A and R are true and R is the correct explanation of A.

  খ

  Both A and R are true but R is NOT the correct explanation of A.

  গ

  A is true but R is false.

  ঘ

  A is false but R is true.
• Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative Assertion(A) : Increase in carbon dioxide would melt polar ice. Reason (R) : Global temperature would rise
  ক

  Both A and R are true and R is the correct explanation of A.

  খ

  Both A and R are true but R is NOT the correct explanation of A.

  গ

  A is true but R is false.

  ঘ

  A is false but R is true.
• Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative Assertion(A) : In India, the judiciary is independent of the executive. Reason (R) : Judiciary favours the government and helps in the implementation of its plans.
  ক

  Both A and R are true and R is the correct explanation of A.

  খ

  Both A and R are true but R is NOT the correct explanation of A.

  গ

  A is true but R is false.

  ঘ

  A is false but R is true.
• Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative Assertion (A) : We prefer to wear white clothes in winter. Reason (R) : White clothes are good reflectors of heat.
  ক

  Both A and R are true and R is the correct explanation of A.

  খ

  Both A and R are true but R is NOT the correct explanation of A.

  গ

  A is true but R is false.

  ঘ

  A is false but R is true.
• Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative Assertion(A) : When common salt is kept open, it absorbs moisture from the air. Reason (R) : Common salt contains magnesium chloride.
  ক

  Both A and R are true and R is the correct explanation of A.

  খ

  Both A and R are true but R is NOT the correct explanation of A.

  গ

  A is true but R is false.

  ঘ

  A is false but R is true.
• Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative Assertion (A) : Weeds should not be allowed to grow along with the crops. Reason (R) : Weeds leave no space for plants to grow.
  ক

  Both A and R are true and R is the correct explanation of A.

  খ

  Both A and R are true but R is NOT the correct explanation of A.

  গ

  A is true but R is false.

  ঘ

  A is false but R is true.
• Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative Assertion(A) : The steam engine was invented by James Watt. Reason (R) : There was a problem of taking out water from flooded mines
  ক

  Both A and R are true and R is the correct explanation of A.

  খ

  Both A and R are true but R is NOT the correct explanation of A.

  গ

  A is true but R is false.

  ঘ

  A is false but R is true.
• Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative Assertion(A) : Graphite is slippery and used as a lubricant. Reason (R) : Graphite has free electrons.
  ক

  Both A and R are true and R is the correct explanation of A.

  খ

  Both A and R are true but R is NOT the correct explanation of A.

  গ

  A is true but R is false.

  ঘ

  A is false but R is true.
• Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative Assertion (A) : a Leaves of plants are green. Reason (R) : Plants contain chromoplasts, the green pigment.
  ক

  Both A and R are true and R is the correct explanation of A.

  খ

  Both A and R are true but R is NOT the correct explanation of A.

  গ

  A is true but R is false.

  ঘ

  A is false but R is true.
• Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative Assertion(A) : A little gap is left between iron rails. Reason (R) : Iron expands in summer.
  ক

  Both A and R are true and R is the correct explanation of A.

  খ

  Both A and R are true but R is NOT the correct explanation of A.

  গ

  A is true but R is false.

  ঘ

  A is false but R is true.
• Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative Assertion (A) : Carbon dioxide turns lime water milky. Reason (R) : Carbon dioxide sullies the water.
  ক

  Both A and R are true and R is the correct explanation of A.

  খ

  Both A and R are true but R is NOT the correct explanation of A.

  গ

  A is true but R is false.

  ঘ

  A is false but R is true.
• Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative Assertion(A) : Bangladesh imports jute from India. Reason (R) : Bangladesh has most of the jute mills.
  ক

  Both A and R are true and R is the correct explanation of A.

  খ

  Both A and R are true but R is NOT the correct explanation of A.

  গ

  A is true but R is false.

  ঘ

  Both A and R are false.
• Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative Assertion (A) : Himalayas once laid under the sea. Reason (R) : Fossils of marine creatures are traced on the Himalayas.
  ক

  Both A and R are true and R is the correct explanation of A.

  খ

  Both A and R are true but R is NOT the correct explanation of A.

  গ

  A is true but R is false.

  ঘ

  A is false but R is true.
• Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative Assertion (A) : Clothes are not washed properly in hard water. Reason (A) : Hard water contains many minerals.
  ক

  Both A and R are true and R is the correct explanation of A.

  খ

  Both A and R are true but R is NOT the correct explanation of A.

  গ

  A is true but R is false.

  ঘ

  A is false but R is true.
• Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative Assertion (A) : Red colour of blood is due to haemoglobin. Reason (R) : Haemoglobin is a red pigment.
  ক

  Both A and R are true and R is the correct explanation of A.

  খ

  Both A and R are true but R is NOT the correct explanation of A.

  গ

  A is true but R is false.

  ঘ

  A is false but R is true.