Questions

What is called the minimum distance from the Sun in a planet in its orbit?

Which instrument is used for measuring humidity of atmosphere?

In the following question, out of the four alternatives, select the alternative which is the best substitute of the words/sentence.

A long, angry speech of criticism or accusation

Nitric acid does not react with

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".

This is a change of my usual work

Who among the following laid the foundation of chemical sciences by establishing two important laws of chemical combination?

Which of the following elements has the lowest melting point?

Pentlandite is an ore/mineral of _______.