Questions

Which of the following elements has the lowest melting point?

The modern periodic table consists of 18 groups and 7 periods. What is the atomic number of the element placed in the 3rd group and the 4th period?

What is the relative molecular mass of water?

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 material is not much enough for me

The Shompens are the vulnerable tribal group of

In male reproductive system, the testes are situated outside the abdominal cavity within a pouch called __________.

Madrid is the Capital City of _____.

What is the value of √121 + √12321 + √1234321 + √123454321?