Question

(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.​

Answer 1

1) The solution of CuSO₄.5H₂O is blue in color. · So, the solution contained in the beaker is that of copper sulphate.

2) This incident , the flag will flutter in the direction of sea when it is midnight because at night time the sea becomes more hot than land and the air above sea traps heat and rises up due to which pressure difference is created and the cool air above land reaches the sea in order to maintain balance

Answer 2

Answer:

1 is rightdodbod NH in torbrieeo