assertion (vs) reason Practice Questions Answers Test with Solutions & More Shortcuts

assertion & reason PRACTICE TEST [1 - EXERCISES]

assertion (vs) reason

Directions:
In each of the following questions, there are two statements labelled as Assertion (A) and Reason (R) . Give answer
    (a) If both 'A' and 'R' are true and 'R' is the correct explanation of 'A'
    (b) If both 'A' and 'R' are true but 'R' is not the correct explanation of 'A'
    (c) If 'A' is true but 'R' is false
    (d) If 'A' is false but 'R' is true
    (e) If both 'A' and 'R' are false.

Question : 1 [N.I.F.T. (UG) 2014]

  • Assertion (A):
  • Inside the Earth, metals are present in a molten state.

  • Reason (R):
  • The earth absorbs the Sun's rays.

a) If both 'A' and 'R' are true and 'R' is the correct explanation of 'A'

b) If both 'A' and 'R' are true but 'R' is not the correct explanation of 'A'

c) If 'A' is true but 'R' is false

d) If 'A' is false but 'R' is true

e) If both 'A' and 'R' are false

Answer: (c)

Inside the Earth, the high temperature and pressure keep the metals in a molten state.

The Earth does not absorb the Sun's rays but reflects them.

Question : 2 [M.A.T. 2004]

  • Assertion (A):
  • British sovereignty continued to exist in India.

  • Reason (R):
  • The British sovereign appointed the last Governor-General of free India.

a) If both 'A' and 'R' are true and 'R' is the correct explanation of 'A'

b) If both 'A' and 'R' are true but 'R' is not the correct explanation of 'A'

c) If 'A' is true but 'R' is false

d) If 'A' is false but 'R' is true

e) If both 'A' and 'R' are false

Answer: (b)

India drafted its own constitution and formed its own government after gaining independence.

Hence, A is false but R is true.

Question : 3 [M.A.T. 2005]

  • Assertion (A):
  • We prefer to wear white clothes in winter.

  • Reason (R):
  • White clothes are good reflectors of heat.

a) If both 'A' and 'R' are true and 'R' is the correct explanation of 'A'

b) If both 'A' and 'R' are true but 'R' is not the correct explanation of 'A'

c) If 'A' is true but 'R' is false

d) If 'A' is false but 'R' is true

e) If both 'A' and 'R' are false

Answer: (d)

We prefer to wear dark clothes in winter as they absorb the heat and keep the body warm.

However, white clothes are good reflectors of heat and are warm in summer.

Question : 4 [M.A.T. 2008]

  • Assertion (A):
  • Ashoka pillars have retained their gloss on their surface.

  • Reason (R):
  • Moisture-laden winds do not blow in the areas where it is located.

a) If both 'A' and 'R' are true and 'R' is the correct explanation of 'A'

b) If both 'A' and 'R' are true but 'R' is not the correct explanation of 'A'

c) If 'A' is true but 'R' is false

d) If 'A' is false but 'R' is true

e) If both 'A' and 'R' are false

Answer: (c)

Because of superior quality material being used, Ashoka pillars have retained their gloss on their surfaces.

Hence, R is completely false.

Question : 5 [N.I.F.T. (PG) 2014]

  • Assertion (A):
  • Graphite is slippery and used as a lubricant.

  • Reason (R):
  • Graphite has free electrons.

a) If both 'A' and 'R' are true and 'R' is the correct explanation of 'A'

b) If both 'A' and 'R' are true but 'R' is not the correct explanation of 'A'

c) If 'A' is true but 'R' is false

d) If 'A' is false but 'R' is true

e) If both 'A' and 'R' are false

Answer: (b)

Graphite possesses a layer structure with two successive layers held by weak forces.

Because of such weak forces, these layers are able to slide over one another. Therefore, graphite is slippery and because of this property, it is used as a lubricant.

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