Question

My presence can be detected by using water, copper sulphate and caustic soda with food who am I ?​

Answer 1

Answer:

☺Proteins☺

Explanation:

When few amount of caustic soda & copper sulphate is added to food, if it turns into violet, we can come to a conclusion that it has proteins in it .

❤HOPE IT HELPS YOU DEAR❤

Answer 2

Answer:

When few amount of caustic soda & copper sulphate is added to food, if it turns into violet, we can come to a conclusion that it has proteins in it .

♥$\huge\pink{Hope \: it \: helps \: you}$❤