Magnesium reacts with……forming their respective halides.
a) water
b) halogen
c) acid
d) hydrogen
Calcium combines directly with ……..and forms hydrides.
a) water
b) hydrogen
c) air
d) nitrogen
Calcium burns in……………
a) water
b) hydrogen
c) air
d) nitrogen
Calcium burns in air with…….flame.
a) yellow
b) brick red
c) Calcium
d) dazzling
Calcium oxides are dissolved in…….forming basic solution
a) ether
b) water
c) alcohol
d) oil
Calcium reacts with ……….forming nitride.
a) water
b) hydrogen
c) air
d) nitrogen
