Question

raj___lanuch by the time they arrived ​

Answer 1

Answer:

Pure copper sulphate can be obtained from an impure sample by re-crystallization. The impure sample is dissolved in water, heated and then cooled which then later forms crystals. These copper sulphate crystals are then separated by filtration and drying.

Answer 2

Answer:

(1) Must

(2) ought to

(3) should

(4) dare to

(5) shall

(6) would