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MBD-MATERIALS: METALS AND NON-METALS-EXAMPLE
- Explain the occurrence of metals in nature.
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- What do you understand by ductility and malleability of a metal? Give ...
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- Silver does not combine easily with oxygen but silver jewellery tarnis...
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- Why do gold ornaments look new even after several years of use?
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- Magnesium and copper metals are heated directly over a flame. Which of...
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- CuSO4 + Fe rarr FeSO4 +Cu feSO4 + Zn rarr ZnSO4 + Fe br> On the basi...
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- Why are pickles, chutney and citrus fruits not stored in iron and alum...
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- what happen when a piece of zinc is added to copper sulphate solution?
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- Can copper displace iron from iron sulphate solution? Give reasons.
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- Why does aluminium vessel lose its lusture after sometime?
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- Why aluminium metal is preferred to copper for making cooking utensils...
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- What is corrosion? What are the different ways to reduce corrosion?
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- In which atomic model electrons in the ground state are in stable equi...
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- Does copper rust? What will happen if copper is exposed to moist air?
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- Give reasons for the following: Aluminium is used in making parts of ...
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- Give reasons for the following: Copper is used in making electric wir...
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- Give reasons for the following: Silver is used in making mirrors.
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- Give reasons for the following: Graphite is used as an electrode in t...
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- Give reasons for the following: iron is used in constructing bridges ...
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- Write two properties of metals.
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