science worksheet 4

Worksheet no 4

True or false

State whether true of false.

1)   Nitric acid turns red litmus paper blue.

2)   Sodium hydroxide turns blue litmus paper red.

3)   Indicator is a substance which shows different colours  in acidic and basic solution .

  4)If an indicator changes colour with a base ,it does not change colour with an acid.

  5)Change of colour in an acid and a base depends on the type of the indicator