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MBD -HARYANA BOARD-METALS AND NON-METALS-SHORT ANSWER TYPE QUESTIONS
- In the electrolytic refining a metal M, what would you take as the ano...
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- State two ways to prevent the rusting of iron.
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- What type of oxides are formed when non-metal combine with oxygen ?
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- Give reasons : (a) Platinum, gold and silver are used to make jewell...
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- Give the difference between Ore and Mineral.
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- What would you observe when Zinc is added to a solution of iron (II) S...
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- What is rusting ? How does (i) the presence of impurities in the metal...
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- You must have seen tarnished copper vessels being cleaned with lemon o...
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- Differentiate between metals and non-metals on the basis of their chem...
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- Give the reason why copper is used to make hot water tanks but steel (...
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- What is a thermite reaction (process) ?
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- Differentiate between roasting and calcination.
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- What are amphoteric oxides ? Give two examples of amphoteric oxides.
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- What is meant by reactivity series of metals ? What is the reason for ...
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- What is an alloy ? Name the alloys and their constituents used for : (...
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- Write electronic configuration of some elements.
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- Why copper articles become green after some time ? Name any two alloys...
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- Why silver articles become black after long time ? Why pure gold is no...
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- Name the metals which exist in free state and which exist in combined ...
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- Explain the extraction of reactive metals.
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