Question

A) define a universal indicator. write its one use.

b.solution a gives pink colour when a drop of phenolphthalein indicator is added to it. solution b gives red colour. when a drop of methyl orange is added to it. what type of solution are a and b and which one of the solution a and b will have a higher ph value.

c.name one salt whose solution has ph more than 7 and one salt whose solution has ph less than 7.

Answer 1

A) Litmus paper
C)More than 7- Naoh
Less than 7- HCL