CHEMISTRY Calcium(Ca)

 Some important question about calcium of chemistry section for your upcoming railway group d, NTPC and also state level exams.

1. Chemical name of Lime water is calcium Hydroxide.

2. Gypsum is a sedimentary rock.

3. Carbon dioxide flow into Lime water,it turn milky.

4.calcium carbonate is camical name of Chalk.

5.calcium carbonate is not soluble in Water.

6.calcium carbonate is used Dental Rubbing.

7.CaoCl2(bleaching powder) used as disinfectant.

8.Atomic mass of Calcium👉40.

9.Quik Lime is known as Calcium Oxide (Cao).

• Calcium oxide used as drying agent.

10.Slaked Lime is known as Calcium Hydroxide Ca(OH)2.

11. Calcium sulphate hemihydrate is chemical name of plaster of Paris.

12. Calcium sulphate hemihydrate dissolve in water it convert gypsum.

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