Question

(a) (i) What is anodising ? What is its utility ?
(ii) Elements of which group of the periodic table are soft? Give one example.
(iii) Name a non-metal which is liquid. What is its colour?
(b) Draw a labelled diagram of an experiment to prove that metals are good conductors of heat.​

Answer 1

Answer:

a) 1. anodizing is a electrolytic process for producing thick oxide usually on aluminium and its alloys. The oxide layers typically 5 to 30um in thickness and is used to give improved surface resistance to wear corrosion

2. group 1A of periodic table are alkali metals example hydrogen, sodium,potassium etc.

3. bromine is only non metal which is liquid at room temperature. It is red brown colour

Answer 2

Answer:

201 percentage of the upper answer is correct