Blue crystals of copper sulphate on heating in a dry test tube become colourless . Give reason.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
Chemical reaction occurs and the colour changes (change in colour identifies the chemical reaction)