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………………….. Crystal to act as a molecular ...

………………….. Crystal to act as a molecular sieve.

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FULL MARKS-p-BLOCK ELEMENTS -I-Additional Questions -Fill in the blanks
  1. Boron trifluoride has a …………………… geometry.

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  2. Anhydrous aluminium chloride is a……………. Substance.

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  3. With excess of NaOH aluminium chloride produces.

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  4. ………… is used for the manufacture of petrol by cracking the mineral oil...

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  5. ………………….. Is used for water proofing and textiles.

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  6. ……………… is the most stable alotropic form of carbon at normal temperatu...

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  7. ………………… is allotropic form of carbon has aromatic character.

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  8. Graphene has ………………….. Lattice.

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  9. Carbonyl chloride is a …………… gas.

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  10. Equimolar mixture of hydrogen and carbonmonoxide is called as………………………

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  11. Producer gas is a mixture of ……………. And …………………….. .

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  12. Aqueous solution of carbon dioxide forms …………………. .

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  13. ………………….. Are high temperature polymers.

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  14. The viscosity of silicon oil remains.

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  15. ……………………. Are used as insulating material.

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  16. In beryl, each aluminium is surrounded by…………………… .

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  17. …………….. Is carcinogenic silicates.

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  18. Three dimensional by replacing……………… units by ………………………. .

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  19. ………………….. Crystal to act as a molecular sieve.

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  20. Borax is a sodium salt of ……………… .

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