Question

Riya is performing an experiment in the laboratory where she has some chemicals and litmus as an indicator . while dropping the indicator solution A the color changes to blue , solution B the color change's to red and solution c remains unchanged . what is the nature of chemicals

Answer 1

Step-by-step explanation:

We can use phenolphthalein to check which of the beakers contains acid and which one contains a base because phenolphthalein is often used as an indicator in acid-base titrations, it turns colourless in acidic solutions and pink in basic solutions.

Apart from that, we can also use other natural indicators; like China rose or turmeric. 

Turmeric is used as another natural indicator. Turmeric is of yellow colour. Turmeric paper turns into red when it is dipped into a basic solution. Turmeric paper does not change its colour with acid. 

China rose is another natural indicator. China rose solution gives dark pink (magenta) colour with acid and green colour with base.