Question

Which of the following compounds is expected to be coloured?
a) AgNO₃
b) CuSO₄
c) ZnCl₂
d) CuCl

Answer 1

a) AgNO³ and
b) CuSO⁴
are expected to be coloured because when experiment is performed they both are with colour

Answer 2

CuSO₄ is of the following compounds is expected to be colored and it can work as the copper sulfate pentahydrate decomposes before melting and it can loses two water molecules upon heating at high temperature of 145 °F and it can followed by the two more at the 228 °F.

On the other hand it has final water molecule at the high temperature with no trouble of it.