Questions

What is the pH of 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 questions, one part of the sentence may have an error. Find out which part of the sentence has an error and click the button corresponding to it. If the sentence is free from error, click the "No error" option.

Sooner had he come (A)/ his colleagues (B)/ organised a get together (C)/ No Error (D)

A sentence/a part of the sentence is underlined. Four alternatives are given to the underlined part which will improve the sentence. Choose the correct alternative and click the button corresponding to it. In case no improvement is needed, click the button corresponding to "No improvement".

Everyone hoped of good weather on the day of the wedding

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

Who discovered X-rays?

Revolving Door was invented by ________.

Who among the following was awarded the Ashok Chakra (posthumous) by President Pranab Mukherjee on the eve of Independence Day 2016 ?