Question

Give reasons :-
1) Noble gases are also known as rare gases.
2) Diamond is used to cut glass.
3) We use mercury in thermometer,
4) Among solid, liquid and gas, gas expands the most.
5) Water is also known as a universal solvent.​

Answer 1

Answer:

They are very expensive and found rarely

coz it's really hard

It's liquid metal

coz it's molecules have very much space

it's necessary for survival and also neutral

Answer 2

Answer:

you can seach in your book because explaining one by one it will be difficult