Indicators — task. Chemistry CBSE Live product, Class 10.

Choose the best answer:

1. Select from the following the statement which is true for bases.

Bases have a pH less than \(7\)
Bases are sour and change red litmus to blue
Bases turn pink when a drop of phenolphthalein is added to them
Bases are bitter and turn blue litmus red

2. Neha tests \(H_2SO_4\) with the indicators provided in the lab. Which observation is not correct?

Phenolphthalein remains colourless
Methyl orange turns red
Blue litmus turns red
Red litmus turns blue

Login or Fast registration

Exit to the topic

Did you find an error?