Question

1. What is the colour of litmus paper in acid solution?
2. What is the mass of an objecent having a weight of 980 Newton on the earth surface?
3. Where will an object have maximum weight?
4. What is the unit of mass?
5. What turns blue vitriol greensih?​

Answer 1

Answer:

1. It turn red in an acidic solution.

Sorry I know only first answer.

Answer 2

Answer:

1 red

2 98 kg

3 where gravitational force max

4kg

5Vitriol is the general chemical name encompassing a class of chemical compound comprising sulfates of certain metals — originally, iron or copper. Those mineral substances were distinguished by their color, such as green vitriol for hydrated iron(II) sulfate and blue vitriol for hydrated copper(II) sulfate.