Question

15. A chemical when heated in a test tube produced brown fumes leaving a black residee
i) Name the chemical used.
ii) Write the chemical equation for the above reaction.
iii) Name the black residue obtained.​

Answer 1

Answer:

a chemical when heated in a test tube was produced ground forms living a black case studies is the chemical is potassium carbonate k2co it is a colourless gas is known as the aorgan