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Reasoning Aptitude

ASSERTION AND REASON MCQs

Assertion And Reason

Total Questions : 239 | Page 23 of 24 pages
Question 221.

Directions: In each of the questions given below, there are two statements labelled as Assertion (A) and Reason (R). Mark your answer as per the codes provided below: (a) Both A and R are true and R is the correct explanation of A. (b) Both A and R are true but R is not the correct explanation of A. (c) A is true but R is false. (d) A is false but R is true. (e) Both A and are false.



  • Assertion (A):

  • Areas near the Equator receive rainfall throughout the year.



  • Reason (R):

  • High temperatures and high humidity cause conventional rain in most afternoons near the Equator.

  1.    Both A and R are true and R is the correct explanation of A.
  2.    Both A and R are true but R is not the correct explanation of A.
  3.    A is true but R is false.
  4.    A is false but R is true.
  5.    Both A and are false.
 Discuss Question
Answer: Option A. -> Both A and R are true and R is the correct explanation of A.
Answer: (a)
R is the correct explanation of A.
Question 222.

Directions: In each of the questions given below, there are two statements labelled as Assertion (A) and Reason (R). Mark your answer as per the codes provided below: (a) Both A and R are true and R is the correct explanation of A. (b) Both A and R are true but R is not the correct explanation of A. (c) A is true but R is false. (d) A is false but R is true. (e) Both A and are false.



  • Assertion (A):

  • Mercury is the farthest planet from the Sun.



  • Reason (R):

  • Mercury is the smallest planet in the entire solar system.

  1.    Both A and R are true and R is the correct explanation of A.
  2.    Both A and R are true but R is not the correct explanation of A.
  3.    A is true but R is false.
  4.    A is false but R is true.
  5.    Both A and are false.
 Discuss Question
Answer: Option D. -> A is false but R is true.
Answer: (d)
Mercury is the smallest planet, but Pluto is the farthest planet in the solar system.
Question 223.

Directions: In each of the questions given below, there are two statements labelled as Assertion (A) and Reason (R). Mark your answer as per the codes provided below: (a) Both A and R are true and R is the correct explanation of A. (b) Both A and R are true but R is not the correct explanation of A. (c) A is true but R is false. (d) A is false but R is true. (e) Both A and are false.



  • Assertion (A):

  • On the equinoxes, the day and night are equal all over the globe.



  • Reason (R):

  • On the equinoxes, the position of the earth with respect to the sun is such that neither pole is inclined towards the sun.

  1.    Both A and R are true and R is the correct explanation of A.
  2.    Both A and R are true but R is not the correct explanation of A.
  3.    A is true but R is false.
  4.    A is false but R is true.
  5.    Both A and are false.
 Discuss Question
Answer: Option A. -> Both A and R are true and R is the correct explanation of A.
Answer: (a)
R fully and clearly explains A.
Question 224.

Directions: In each of the questions given below, there are two statements labelled as Assertion (A) and Reason (R). Mark your answer as per the codes provided below: (a) Both A and R are true and R is the correct explanation of A. (b) Both A and R are true but R is not the correct explanation of A. (c) A is true but R is false. (d) A is false but R is true. (e) Both A and are false.



  • Assertion (A):

  • Eskimos reside in igloos.



  • Reason (R):

  • No other material except snow is available.

  1.    Both A and R are true and R is the correct explanation of A.
  2.    Both A and R are true but R is not the correct explanation of A.
  3.    A is true but R is false.
  4.    A is false but R is true.
  5.    Both A and are false.
 Discuss Question
Answer: Option C. -> A is true but R is false.
Answer: (c)
Eskimos live in snow houses called igloos because snow, being a bad conductor of heat, these houses are warm inside.
Question 225.

Directions: In each of the questions given below, there are two statements labelled as Assertion (A) and Reason (R). Mark your answer as per the codes provided below: (a) Both A and R are true and R is the correct explanation of A. (b) Both A and R are true but R is not the correct explanation of A. (c) A is true but R is false. (d) A is false but R is true. (e) Both A and R are false.



  • Assertion (A):

  • Unpolished rice should be eaten.



  • Reason (R):

  • Polished rice lacks Vitamin B.

  1.    Both A and R are true and R is the correct explanation of A.
  2.    Both A and R are true but R is not the correct explanation of A.
  3.    A is true but R is false.
  4.    A is false but R is true.
  5.    Both A and R are false.
 Discuss Question
Answer: Option A. -> Both A and R are true and R is the correct explanation of A.
Answer: (a)
The husk of unpolished rice contains Vitamin B1, deficiency of which causes the disease Beriberi.
So, the rice should be eaten unpolished.
Question 226.

Directions: In each of the questions given below, there are two statements labelled as Assertion (A) and Reason (R). Mark your answer as per the codes provided below: (a) Both A and R are true and R is the correct explanation of A. (b) Both A and R are true but R is not the correct explanation of A. (c) A is true but R is false. (d) A is false but R is true. (e) Both A and R are false.



  • Assertion (A):

  • When a body is dipped in a liquid fully or partially, there is a decrease in its weight.



  • Reason (R):

  • The decrease in weight is due to the higher density of the displaced liquid.

  1.    Both A and R are true and R is the correct explanation of A.
  2.    Both A and R are true but R is not the correct explanation of A.
  3.    A is true but R is false.
  4.    A is false but R is true.
  5.    Both A and R are false.
 Discuss Question
Answer: Option C. -> A is true but R is false.
Answer: (c)
When a body is dipped in a liquid, there is a decrease in weight due to the upward thrust exerted on it by the water.
Question 227.

Directions: In each of the questions given below, there are two statements labelled as Assertion (A) and Reason (R). Mark your answer as per the codes provided below: (a) Both A and R are true and R is the correct explanation of A. (b) Both A and R are true but R is not the correct explanation of A. (c) A is true but R is false. (d) A is false but R is true. (e) Both A and R are false.



  • Assertion (A):

  • Copper is used to making electrical wires.



  • Reason (R):

  • Copper has very low electrical resistance.

  1.    Both A and R are true and R is the correct explanation of A.
  2.    Both A and R are true but R is not the correct explanation of A.
  3.    A is true but R is false.
  4.    A is false but R is true.
  5.    Both A and R are false.
 Discuss Question
Answer: Option A. -> Both A and R are true and R is the correct explanation of A.
Answer: (a)
The low electrical resistance of copper makes it a good electric conductor.
So it is used to make electric wires.
Question 228.

Directions: In each of the questions given below, there are two statements labelled as Assertion (A) and Reason (R). Mark your answer as per the codes provided below: (a) Both A and R are true and R is the correct explanation of A. (b) Both A and R are true but R is not the correct explanation of A. (c) A is true but R is false. (d) A is false but R is true. (e) Both A and R are false.



  • Assertion (A):

  • We prefer to wear white clothes in winter.



  • Reason (R):

  • White clothes are good reflectors Of heat.


  1.    Both A and R are true and R is the correct explanation of A.
  2.    Both A and R are true but R is not the correct explanation of A.
  3.    A is true but R is false.
  4.    A is false but R is true.
  5.    Both A and R are false.
 Discuss Question
Answer: Option D. -> A is false but R is true.
Answer: (d)
We prefer to wear dark clothes in winter because they absorb heat and keep the body warm.
However, white clothes are good reflectors of heat and are worn in summer.
Question 229.

Directions: In each of the questions given below, there are two statements labelled as Assertion (A) and Reason (R). Mark your answer as per the codes provided below: (a) Both A and R are true and R is the correct explanation of A. (b) Both A and R are true but R is not the correct explanation of A. (c) A is true but R is false. (d) A is false but R is true. (e) Both A and R are false.



  • Assertion (A):

  • Leakages in household gas cylinders can be detected.



  • Reason (R):

  • LPG has a strong smell.

  1.    Both A and R are true and R is the correct explanation of A.
  2.    Both A and R are true but R is not the correct explanation of A.
  3.    A is true but R is false.
  4.    A is false but R is true.
  5.    Both A and R are false.
 Discuss Question
Answer: Option C. -> A is true but R is false.
Answer: (c)
Leakages in household gas cylinders can be detected because of the strong smell of ethyl mercaptan mixed with LPG.
Question 230.

Directions: In each of the questions given below, there are two statements labelled as Assertion (A) and Reason (R). Mark your answer as per the codes provided below: (a) Both A and R are true and R is the correct explanation of A. (b) Both A and R are true but R is not the correct explanation of A. (c) A is true but R is false. (d) A is false but R is true. (e) Both A and R are false.



  • Assertion (A):

  • A saltwater fish drinks seawater whereas a freshwater fish never drinks water.



  • Reason (R):

  • A saltwater fish is hypertonic to its environment while a freshwater fish is hypotonic to its environment.

  1.    Both A and R are true and R is the correct explanation of A.
  2.    Both A and R are true but R is not the correct explanation of A.
  3.    A is true but R is false.
  4.    A is false but R is true.
  5.    Both A and R are false.
 Discuss Question
Answer: Option C. -> A is true but R is false.
Answer: (c)
A is clearly true. However, this happens because a saltwater fish is hypotonic to its environment while a freshwater fish is hypertonic to its environment.

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