Page 2 - HA4
P. 2

2.Write the colour change takes place when China rose extract is added to the base.




               ………………………………………………………………………………………………


                   ……………………………………………………………………………………………

                   3. China rose can be used as acid base indicator. Is it  a synthetic or natural indicator?



               ……………………………………………………………………………………………..



               ………………………………………………………………………………………………4.
               4. Would you think China rose extract can change the colour of normal water? If not why?

               .………………………………………………………………………………………………

                   ………………………………………………………………………………………………
               5. Write the colour change which will take place if solution of one green and one magenta
               coloured test-tube will be mixed together.


                    .………………………………………………………………………………………………

                   ………………………………………………………………………………………………





























               Page2
   1   2