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MODERN PUBLICATION-METALS AND NON-METALS-EXERCISE
- You are given an iron strip. How will you make it into a magnet?
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- What is difference between minerals and ores?
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- Define the terms 'metallurgy' and 'gangue'.
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- Explain, why carbon can reduce copper but not calcium oxide to calcium...
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- Write the importance of MOET.
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- Write chemical equations for the reactions taking place at the two ele...
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- Write any two differences between morula and blastula.
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- What happens when aluminium wire is heated in air? Give equation.
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- How is impure metal refined electrolytically?
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- Explain the meaning of malleable and ductile
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- Why do solids have a definite volume ?
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- Giving examples, differentiate between roasting and calcination.
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- Name two metals which will displace hydrogen from dilute acids, and tw...
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- T/F Carbonate and sulphide ores are usually converted into oxides.
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- State two ways to prevent the rusting of iron
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- What is 24 carat gold? How would you convert into 18 carat gold?
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- Sodium amalgam is a mixture of ............. and mercury.
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- The colour of hydrated copper sulphate is……………and that of anhydrous co...
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- T/F The process of covering iron with Zn is called galvanization.
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- Fill ups Out of Al,Zn and Ag only…………..cannot displace hydrogen form d...
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