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Identify the electrophile centre in the ...

Identify the electrophile centre in the following :
(i) `CH_(3)CHO" "`(ii) `CH_(3)CH=CH_(2)" "`(iii) `CH_(3)COCH_(3)`

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Electrophile centre is the one which develops a partial positive charge when nuclephile attacks. It is shown by the sign `(**)`. For example,
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Identify the electrophilic centres in the following: CH_(3)CH=O, CH_(3)CN, CH_(3)I .

Identify electrophilic centre in the following : (1) CH_3CH=O (2) CH_3-CN (3) CH_3 I .

Write the IUPAC names of the following : (i)CH_(3)COCH_(3), (ii) CH_(3)COCH_(2)CH_(3)

(a) Write the formula of the functional group present in carboxylic acids . (b) Name the functional group present in CH_(3)-C-=CH (c )Name the functional groups present in the following compounds: (i) CH_(3)CHO,(ii)CH_(3)CH_(2)COOH,(iii)CH_(3)COCH_(3),(iv)CH_(3)CH_(2)CH_(2)OH

Compare the relative acidic strength of the following: (i) CH_(3)OH (ii) CH_(3)CH_(2)OH (iii) CH_(3)CH(OH)CH_(3) (iv) (CH_(3))_(3)COH .

Name the functional groups present in the following compounds: (i) CH_(3)-CH_(2)-CH_(2)-OH (ii) CH_(3)-CH_(2)-CH_(2)-COOH (iii) CH_(3)-CH_(2)-CHO (iv) CH_(3)-CO-CH_(2)-CH_(3)

Give the IUPAC name of the following compounds: (i) (CH_(3))_(2) , (ii) CH_(3)COCH(CH_(3))_(2) , (iii) Cl_(2)CHCOCH_(3) (iv) CH_(3)CH(OH)CH_(2)CHO , (v) C_(6)H_(5)CH_(2)CHO , (vi) CH_(2)=CHCOCH =CH_(2)

Name the funtional groups present in each of the following compounds : (i) CH_(3)-CO-CH_(2)-CH_(3) (ii) CH_(3)-CH_(2)-COOH (iii) CH_(3)-CHO (iv) CH_(3)-CH_(2)OH

DINESH PUBLICATION-ORGANIC CHEMISTRY - SOME BASIC PRINCIPLES & TECHNIOUES-PURIFICATION & CHARACTERISATION OF ORGANIC COMPOUNDS
  1. Identify the electrophile centre in the following : (i) CH(3)CHO" ...

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  2. A misture of camphor and benzoic acid can be separated by :

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  3. In Kjeldahl's method, nitrogen is estimated as :

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  4. Two immiscible liquid present in a bottle can be separated by:

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  5. In sodium fusion test of organic compounds, the nitrogen in an organic...

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  6. Which of the following reagents is useful to separate benzoic acid fro...

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  7. In Duma's method, the gas collected in nitrometer is :

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  8. Anthracene is purified by :

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  9. 0.2 g of an organic compound on complete combustion produces 0.18 g of...

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  10. Which process is suitable for the purification of aniline ?

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  11. In the Lassaigne's test for the detection of sulphur, the purple colou...

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  12. For which of the following compounds will Lassaigne's test for nitroge...

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  13. The most satisfactory method to separate mixture of sugars is :

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  14. Lassaigne's extract is botted with dilute HNO(3) before testing for ha...

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  15. The purity of an organic solid is determined by :

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  16. Absolute alcohol is prepared by :

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  17. 0.32 g of an organic compound gave 0.233 g of BaSO(4). Determine the p...

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  18. Which is not used to purify organic solids ?

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  19. Chloroform and benzene form a pair of miscible liquids. These can be s...

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  20. During Lassaigne's test S and N present in an organic compound change ...

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  21. The best method to separate a mixture of ortho and para nitrophenol (1...

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