For protection of Iron pipes from corrosion they are coated with _________________

Chemical change are

Which of the following is not an example of a chemical change?

In Neutralisation reaction acid reacts with a base to form salt and water and a lot of heat energy is given out. This reaction is :

Complete the following analogy:   Electrolysing :  Chemical change : : Crystallisation : ____________

Mtavh column - I with Column - II and select the correct answer using the codes given below the columns:

Column - I	Column - II
A. Pasteurisation of milk	(p) Produce sound and heat is relased
(B) Explosion of fireworks	(q) Rusting of iron
(C) A chemical equation	(r) Phycial change
(D) Formation of iron oxide	(s) Magnesium (Mg) + Oxygen Magnesium oxide (MgO)

Which of the following processes used for prevention of rusting is known as electroplating ?

Which of the followig will decompose to form a yellow product emitting brown fumes?