General Knowledge Questions

When iron is exposed to moist air, a reddish brown coating of hydrated Iron (III) Oxide (Fe2O3) is deposited on its surface. This reddish brown coating is called

The specificity of an antibody is due to

In the following question, out of the four alternatives, select the alternative which will improve the bracketed part of the sentence. In case no improvement is needed, select "no improvement".

You see a curtain of fog (hanged) low, suspended over the fresh green grass.

In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

It is basic to a democracy that its citizens remain in harmony _______ one another. At the very least, they should _______ treat each other as enemies. Enmity is spreadonly by vested interests that hope to thrive _________ polarising citizens. The ______________ between professed love for the country and infecting the people with hatred remains ignored. There is no instance in history of the policy of ‘divide and rule’ _____________ people’s welfare.

The ______________ between professed love

In the following question, out of the given four alternatives, select the one which is opposite in meaning of the given word.

Vista

Some roots, called _________________, arise from an organ other than the radicle.

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.

Visitors to the zoo(A)/are amused by the monkeys(B)/play in the cages.(C)/No error(D)

In the following question, out of the given four alternatives, select the alternative which best expresses the meaning of the Idiom/Phrase.

Be in the red