(a) What is slaked lime ? (b) Beryllium and magnesium do not give colour to flame. Why? (c ) How is NaOH prepared hy castner-kellner method?

(a) What is slaked lime ? (b) Beryllium and magnesium do not give col

1.	(a) What is slaked lime ? (b) Beryllium and magnesium do not give colour to flame. Why? (c ) How is NaOH prepared hy castner-kellner method?
Answer» Solution :Slaked lime is CALCIUM HYDROXIDE `CA(OH)_(2)` and is formed by droping water on quick lime (CaO). This is known as slaking of lime. `CaO + H_(2)O to Ca(OH)_(2)` (b) for answer, consult section 10.12 (c ) For the process, consult section 10.9