There are……alkaline earth metals.
a) four
b) five
c) six
d) seven
Which of the following are included in alkaline earth metals group?
a) beryllium and magnesium
b) calcium and strontium
c) barium and radium
d) all of these
Alkaline earth metals attain stability by ……..electron/s.
a) losing one
b) gaining one
c) losing two
d) gaining two
Gypsum is the example of…….
a) calcium sulphate
b) magnesium sulphate
c) barium sulphate
d) none of these
Epsom is the example of…….
a) calcium sulphate
b) magnesium sulphate
c) barium sulphate
d) none of these
Barite is the example of…….
a) calcium sulphate
b) magnesium sulphate
c) barium sulphate
d) none of these
