
Respiration equation:
__(1)__ + __(2)__
__(3)__ + __(4)__(1) is a soluble solid, when heated with Benedict's solution a red-brown colour is formed.
(2) is a gas, when pure, relights a glowing splint.
(3) is a gas that bubbled into limewater turns it cloudy.
(4) is a colourless liquid
What is the chemical identity of
(1)? [8b-5]