Question

Q2. You are given an element A which has following properties- reacts only with steam, and used to make food foils.

i) Which metal is this and give its reaction with water? 2

ii) When you dipped a litmus paper in this water later there was no change in the colour of litmus paper. Why? 3

iii) On adding a liquid from chemistry lab to the powder of this metal you observe that a gas is evolved and test tube becomes very hot. What is this liquid? Explain your observations with the help of equations. 4

iv) When this metal reacts with chlorine it forms metal chloride. What kind of a compound is it and what are its properties? Explain with the help of structural diagram.​

Answer 1

Explanation:

What is the Colour change of litmus solution in distilled water?

Answer: Litmus is extracted from lichens. It has a mauve (purple) colour in distilled water. When added to an acidic solution, it turns red and when added to a basic solution, it turns blue.