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Liquids which decompose at or below thei...

Liquids which decompose at or below their boiling points are purified by.............. .

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distillation under reduced pressure
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A substance which decomposes at or below its boiling point cannot be purified by:

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PRADEEP-ORGANIC CHEMISTRY-SOME BASIC PRINCIPLES TECHNIQUES-Test Your Grip (II. Fill in the Blanks)
  1. Wohler prepared urea by heating a mixture of..........and............o...

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  2. Cyclohexane is an..........compound while benzene is an...........comp...

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  3. The correct IUPAC name for pent-4-en-1-yne is............ .

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  4. The prefix and the suffix for CHO group are..............and.............

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  5. The aryl group left after the removal of a hydrogen atom from benzene ...

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  6. Aldehydes and ketones are ...... ..... isomers.

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  7. But-1-ene and cyclobutane are................isomers.

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  8. What will be total number of isomers of compound with molecular formul...

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  9. In ethyl acetoacetate, it is the................form which is more sta...

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  10. Amongst OH^(-), CH(3)COO^(-) and CH(3)O^(-) ions, nucleophilicity decr...

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  11. The kind of delocalization involving sigma bond orbitals is called:

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  12. Among isomeric butenes, ......... .. is the most stable.

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  13. Methyl carbanion is................and...............with ammonia.

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  14. The shape of CH(3)^(-) is......................while that of CH(3)^(+)...

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  15. The bond dissociation energy needed to form the benzyl radical from to...

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  16. Liquids which decompose at or below their boiling points are purified ...

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  17. Steam distillation is used for separation and purification of those co...

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  18. Paper chromatography is also called.............chromatography in whic...

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  19. In Lassaigne test for nitrogen, conc HNO(3) is used to destroy...........

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  20. In Duma's method, the nitrogen present in the organic compound is conv...

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