UNIT 5: Alkali and Alkaline Earth Metals - Online Test

Q1. Which of the following statement is false ?
Answer : Option A
Explaination / Solution:

Ca2+ ion plays an important role in maintaining regular heart beat.

Q2. The name 'Blue John' is given to which of the following compounds ?
Answer : Option B
Explaination / Solution:

'Blue john' – CaF2 (A variety of fluorite)

Q3. Formula of Gypsum is
Answer : Option A
Explaination / Solution:

CaSO4 . 2H2O Option (a)

Q4. When CaC2 is heated in atmospheric nitrogen in an electric furnace the compound formed is
Answer : Option B
Explaination / Solution:




Q5. Among the following the least thermally stable is
Answer : Option D
Explaination / Solution:

Li2CO3 is least stable.