Questions

What is the ratio of masses of hydrogen and oxygen in the water?

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

In the following question, out of the four alternatives, select the alternative which is the best substitute of the phrase.
An old unmarried woman

In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.
My sister unlike my brothers __________ to have a career in Engineering.

In each of the following question, find out which part has an error. The police have

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

Four words are given, out of which only one word is spelt correctly. Choose the correctly spelt word and click the button corresponding to it.

During fermentation of sugar, the compound which is always formed is