Chemistry Questions

Damaged CFLs and fluorescent tubes should be disposed off safely because they contain ______ vapour, which is toxic in nature.

Which of the following is a man-made fibre that was made without using any natural raw material (from plant or animal)? It was prepared from coal, water and air. It was the first fully synthetic fibre.

${\text{CaSO}}_4\cdot 2{\text{H}}_2\text{O}$ is the chemical formula of _______.

The alloy Rose gold contains which other metal besides gold?

The monomer caprolactam is polymerised to obtain which polymer?

Butter is an example of a _________.

Which of the following salts will NOT have $10$ molecules of water of crystallisation?