Question

Q.(8) Very short answer type questions (Any-5)
() Why is buming of magnesium called a chemical change?
(ii) Name the gas used by plants in making food.
(1) What is the colour of litmus paper in a bases?
(iv) What is the range of Fahrenheit scale in a clinical thermometer?
(v) Give example of three types of artificial fiber.
(vi) Give two examples each of strong acids and weak acid.​

Answer 1

Answer:

2) carbon dioxide

3) blue litmus paper turn into red acid

4) nylon, rayon,polyester, acrylic

5) hydrochloric acid, nitric acid and weak acid

oxalic, acetic acid