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ZEN PUBLICATION-METALS AND NON METALS-ZEN ADDITIONAL QUESTIONS SECTION (VERY SHORT ANSWER [VSA] TYPE QUESTIONS)
- Name the metal which has very low melting point and can melt with heat...
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- State two physical properties of gold which are of extreme use to jewe...
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- Aluminium or copper wires required for electric circuits are coated wi...
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- A non-metal X exists in two different forms Y and Z. Y is the hardest ...
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- Name two non metals which are brittle solids.
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- Reverse of the following chemical reaction is not possible: Zn(s)+Cu...
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- Hydrogen gas is not liberated when a metal reacts with concentrated ni...
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- A silver spoon is kept immersed in an aqueous solution of copper sulph...
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- What are ionic compounds?
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- Ionic compounds can conduct electric current when molten. Give reason....
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- Aluminium occurs in combined state in nature whereas gold, in its free...
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- A few drops of sulphuric acid are added to water before electrolysis. ...
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- In the refining of silver, the recovery of silver from silver nitrate ...
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- What is metallurgy ?
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- What is the reduction process used for sodium chloride?
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- In electrolytic refining of an impure coper metal, which substances ar...
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- What is galvanization?
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- Iron objects acquires redish brown coating when left exposed to moist ...
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- Why corrosion of iron is a serious problem?
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- Name the colour of coating formed on silver and copper articles expose...
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