Assertion and Reason


Direction: Choose the correct alternative from the following options as given below for the Assertion (A) and Reason (R) given in each of the questions.

  1. Assertion (A)
    We prefer to wear white clothes in winter.
    Reason (R)
    White clothes are good reflectors of heat.









  1. View Hint View Answer Discuss in Forum

    We prefer coloured/dark clothes in winter as they absorb heat but given reason is true for white clothes.

    Correct Option: D

    We prefer coloured/dark clothes in winter as they absorb heat but given reason is true for white clothes.


  1. Assertion (A)
    Earthworms are not good for agriculture.
    Reason (R)
    Earthworms break down the soil into fine particles and make it soft.









  1. View Hint View Answer Discuss in Forum

    Earthworms are good for agriculture as they make the soil fertile. Therefore, assertion is false but the reason is true.

    Correct Option: D

    Earthworms are good for agriculture as they make the soil fertile. Therefore, assertion is false but the reason is true.


  1. Assertion (A)
    Mercury is the farthest planet from the Sun.
    Reason (R)
    Mercury is the smallest planet in the entire solar system.









  1. View Hint View Answer Discuss in Forum

    We know that, mercury is the smallest planet but it is not the farthest planet.

    Correct Option: D

    We know that, mercury is the smallest planet but it is not the farthest planet.


  1. Assertion (A)
    Red, green colour blindness occurs with more frequency in males than in females.
    Reason (R)
    Females have two X-chromosomes and males have one.









  1. View Hint View Answer Discuss in Forum

    Both assertion and reason are correct and reason is correct explanation for the assertion as if mutation for colour blindness occurs in one X-chromosome, female have one normal chromosome.

    Correct Option: A

    Both assertion and reason are correct and reason is correct explanation for the assertion as if mutation for colour blindness occurs in one X-chromosome, female have one normal chromosome.


  1. Assertion (A)
    Indus Valley people knew the art of navigation.
    Reason (R)
    Indus Valley seals indicate prevalence of overseas trade.









  1. View Hint View Answer Discuss in Forum

    Indus Valley people knew the art of navigation but the reason that the seals of that time indicate prevalence of overseas trade is false.

    Correct Option: C

    Indus Valley people knew the art of navigation but the reason that the seals of that time indicate prevalence of overseas trade is false.