Question

Q:- 6
Do as directed.
(1) Blue coloured solution is given in the figure. Which solution is it? What causes the
colour change in this solution. Explain.
(2) A flag near the check post furls in the direction of sea. Is it midnight or afternoon?
Why?
(3) Describe the experiment showing the conduction of heat in solid substance with
diagram.
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Answer 1

Answer:

1. blue coloured solution is copper sulphate.the displacement of copper with iron causes the change in colour.

2.it is midnight.because in night the breeze flows from land towards sea.

3 rd in pic