CBSE Class 8 Science Materials: Metals and Non Metals
- hi i am mishthi i want to learn the formulas can u plz help me?
- Give reason. Silver and gold do not directly combine with oxygen.
- Silver turns black when exposed to air. Give reason
- Give Reason. Potassium and sodium form oxides at room temperature.
- what is crop production
- Why gold not react with oxygen
- Explain corrosion
- Which bacteria dies when hydrogen peroxide is applied to wound
- ships aresaved from being corroded by oxygen
- silver articles are tarnished after few days.
