CuSO4 (aq) + H2S (g) → CuS (ppt) + H2SO4(aq)
What is the colour of precipitate formed?
Question 8
Students of a class voted for their favourite colour and a pie chart was prepared based on the data collected.
Which colour received 15 of the votes?
(a) Red
(b) Blue
(c) Green
(d) Yellow