Question

Petals of china rose are a natural indicator. If we add its extract to acid and base separately, which colour would
be observed?

A) green in both acid base
B) green in acid and dark
C) dark pink in acid and green in base
D) red in acid and blue in base

Please give me ans. ​

Answer 1

Explanation:

Soak some petals of china rose in warm water for a couple of hours. The red-coloured solution is used as an indicator for detecting an acid or a base solution. It turns into magenta in acidic medium and green in basic medium. Hence, it is a natural indicator.

hope helpful to you

Answer 2

Petals of china rose are a natural indicator. If we add its extract to acid and base separately, it will show 'dark pink in acid and green in base.' Hence, Option 'C' is correct.

• To make a natural indicator from the Petals of China rose, petals are to be soaked in warm water for a few hours.
• It gives a red-colored solution which is used to check the presence of an acid or a base.
• In an acidic medium, the Red color changes to Magenta.
• And In the basic medium, It gives green color.
• Some other natural indicators include red cabbage, turmeric, onion, etc.

Hence, Option 'C' is correct.

#SPJ2