For the Assertion (A) and Reason (R) below, choose the correct alternative.
Assertion (A) : Razia Sultan was the daughter of Iltutmish.
Reason (R) : Iltutmish was a rebel.
Answer: C
litutmish was a ruler of slave dynasty and Razia was his daughter.
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Assertion (A) : The Indian Constitution came into force with effect from 26th January. 1950.
Reason (R) : 26th January is celebrated as the Republic Day.
Answer: B
The Indian Constitution came into force with effect from January 26, 1950 and since then this day is celebrated as the Republic Day.
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Assertion (A) : In India, females have higher life expectancy than the males.
Reason (R) : Females receive a better diet.
Answer: D
In India, due to high birth rate and due to neglect, females have a lower life expectancy than the males and although females need a better diet, they do not receive it.
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Assertion(A) : The steam engine was invented by James Watt.
Reason (R) : There was a problem of taking out water from flooded mines
Answer: A
The problem of pumping out water from the flooded mines provided the need of a self working engine, which led James Watt to invent the same.
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Assertion(A) : A little gap is left between iron rails.
Reason (R) : Iron expands in summer.
Answer: A
Iron expands in summer. So, gaps are left between rails to allow for expansion.
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Assertion (A) : Gandhiji withdrew the non-cooperation movement
Reason (R) : There was violence at the Chauri Chaura outrage
Answer: A
Gandhiji withdrew the non-cooperation movement because of the violence in the Chauri Chaura outrage.
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Assertion (A) : An atom is neutral despite the charged particles in it.
Reason (R) : The neutrons do not have any charge.
Answer: B
An atom contains the positively charged protons and an equal number of negatively charged electrons So, it is neutral
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Assertion (A) : Leakages in household gas cylinders can be detected.
Reason (R) : LPG has a strong smell.
Answer: C
Leakages in household gas cylinders can be detected because of the strong smell of ethyl merceptan mixed with LPG.
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Assertion (A) : Inside the earth metals are present in molten state.
Reason (R) : Earth absorbs the sun's rays.
Answer: C
Inside the earth, the high temperature and pressure keeps the metals in molten state. The earth does not absorb the sun's rays but reflects them
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Assertion (A) : Red colour of blood is due to haemoglobin.
Reason (R) : Haemoglobin is a red pigment.
Answer: A
Haemoglobin is the blood pigment that imparts red colour to the blood.
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