Metals and Non-metals
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See all →- Give reasons why copper is used to make hot water tanks and not steel (an alloy of iron). Copper does not react with cold water, hot water, or steam. However, iron reacts with steam. If the hot water tanks are made of steel (an al... 2
- A man went door to door posing as a goldsmith. He promised to bring back the glitter of old and dull gold ornaments. The solution he had used was Aqua regia. Aqua regia is Latin word which means ‘Royal Water’. It is the mixture of concentrated Hydrochloric... 1
- Differentiate between metal and non-metal on the basis of their chemical properties Metal Non-metal Metals are electropositive. Non-metals are electronegative. Oxides of metal are basic in nature. Oxides of non-metals are ac... 1
- You must have seen tarnished copper vessels being cleaned with lemon or tamarind juice. Copper reacts with moist carbon dioxide in air to form copper carbonate and as a result, copper vessel loses its shiny brown surface forming... 1
- Carbonate and sulphide ores are usually converted into oxides during the process of extraction. Carbonate and sulphide ores are usually converted into oxides during the process of extraction because metals can be easily extracted from t... 1
- Aluminium is a highly reactive metal, yet it is used to make utensils for cooking. Though aluminium is a highly reactive metal, it is resistant to corrosion. This is because aluminium reacts with oxygen present in air to fo... 1