Across
- 4. A substance added to food containing oils and fats is called
- 5. The condition produced by aerial oxidation of fats and oils in food marked by unpleasant smell and taste is called
- 7. The process in which metals are eaten up gradually by action of air,moisture or a chemical or the surface
- 9. When ferrous sulphate is heated strongly it undergoes deep composition to form ferric oxide as a main product accompanied by a change in colour from Green to
Down
- 1. What type of chemical reaction take place when electricity is passed through water
- 2. What type of process is respiration
- 3. The process of reduction involves removal of
- 6. Which gas can be used for storage
- 8. Precipitation in which energy is given out are known as