1.
The acidity or basicity of a given sample is determined using litmus paper. In a test tube, Sakthi has an unknown colourless sample. He wants to make use of the test tube but he is advised to dispose of the chemical in proper waste collection. He used litmus papers, but there was no colour change. What do you think the solution is?
2.
Akbar while pipetting out, accidentally drinks some amount of the chemical. He found that the chemical is a bitter taste. What is the type of chemical he was using?