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The crown ethers are heterocyclic polyet...

The crown ethers are heterocyclic polyethers, usually with at least four oxygen atoms. The 12-crown-4-ether contains…..carbon atoms.

A

12

B

4

C

8

D

16

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The correct Answer is:
C
NA
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CENGAGE CHEMISTRY ENGLISH-ALCOHOL,PHENOL AND ETHERS-Exercises Single Correct
  1. Dynamite is:

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  2. In Zeisel's method for the detrmination of methoxyl groups, a sample o...

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  3. The crown ethers are heterocyclic polyethers, usually with at least fo...

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  4. The crown-guest complex is called an inclusion compound. The crown eth...

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  5. Which of the following is not used as inhalation ananesthetic ?

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  6. Which of the following is not used as flavouring agent in perfumes ?

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  7. The presence of peroxides in old samples of ethers is detected by shak...

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  8. Which of the following is oxetane?

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  9. Which of the following ether is called phenetole?

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  10. Which of the following structure represents Vanillin ?

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  11. Which of the following ethers is presents in clove oil ?

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  12. The products (A) and (B) are:

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  13. The products (A) and (B) are:

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  14. The products (A) and (B) are:

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  15. CH(3)-CH(2)-O-CH(2)-CH(3)+O(2)overset(hv)rarr (A) The product (A) is:

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  16. Which of the following reactions is possible ?

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  17. Which of the following reactions is possible ?

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  18. Give the decreasing order of reactivity of the following alkyl halides...

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  19. HO-CH(2)-CH(2)-CH(2)-CH(2)CI overset(O^(-)H)rarr (A) Which of the foll...

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  20. CH(3)OH+C(2)H(5)OH overset(H^(o+))rarr Products

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