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Give the principle of extraction of iron...

Give the principle of extraction of iron from one of its ore.

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USHA PUBLICATION-D- AND F_BLOCK ELEMENT & CO-ORDINATION COMPOUND -EXERCISE
  1. Discuss the principle of extraction of aluminium from one of its chief...

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  2. Write two important ores of iron.

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  3. Give the principle of extraction of iron from one of its ore.

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  4. The correct order of bond dissociation energy of halogens is .

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  5. In which reaction ozone acts as reductant ?

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  6. Oxygen and Ozone are .

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  7. The shape and hybridisation of XeF4 is

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  8. The number of P-O-P bonds in phosphorous pentoxide (P4O10) are

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  9. Which noble gas is called as stranger gas?

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  10. P4 molecule has tetrahedral structure. The anglep-p-p bond angle is

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  11. Write the product formed when ammonia reacts with excess of chlorine.

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  12. What is composition of Oleum ?

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  13. The inert gas used in beacon lights is

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  14. Name the catalyst used in the contact process of manufacture of H2SO4

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  15. The most abundant noble gas present in the atmosphere is .

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  16. Sodium chloride on heating with H2SO4 in presence of MnO2 produce gas...

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  17. What is the bond angle in SO2 molecule ?

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  18. Arrange the halogen acids in increasing order of their acidic strength...

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  19. What happens when phosphorous acid is heated ?

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  20. Why is oxygen a gas sulphur a solid at while room temperature ?

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