Questions

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

Metals react with sodium hydroxide to produce ___________.

In the following question, sentence given with blank is to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.

The enzyme was the _____________ that triggered the chemical reaction.

Select the word with the correct spelling.

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

We are ____ in a time of great and _____changes. The most obvious _____of the modern world is the _____development of science and technology. This has given man a deeper _____of nature.

We are ____ in a time of great

A solid sphere of radius 6 cm is melted and re-casted into a hollow cylinder of uniform thickness. If the external radius of the base of the cylinder is 5 cm and its height is 32 cm, find the uniform thickness of the cylinder ?

The first colony established by the English in north America was

The largest gland of the human body is