Questions

If waste materials contaminate the source of drinking water, which of the following diseases will spread?

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/Phrase.
To put a spoke in one's wheel

In the following question, out of the four alternatives, select the word similar in meaning to the word given.
Articulate

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.
Pillar to post

In the following question, four words are given out of which one word is incorrectly spelt. Select the incorrectly spelt word.

In the following question, a sentence has been given in Active/Passive voice. Out of the four alternatives suggested, select the one which best expresses the same sentence in Passive/Active voice.
He shall have bought a car.

Name the gas used in preparation of bleaching powder

Sour taste of lemon is due to the presence of which of the following ?