Question

.Which of the following metal ion is colourless ? -----
A. Zinc (II)
B. Copper (II)
C. Mn (II)
D. Cr (III)

Answer 1

Answer:

Cr

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Answer 2

Answer:

the answer is A) Zinc

•The colour of copper is sky blue

•the colour of mn is light pink

•the colour of cr is light green

•Zinc is colourless but when zinc is heated it forms ZnO which is yellow colour