`HCHO` and `CH_(3)-overset(O)overset(||)C-overset(O)overset(||)C-H` are the products obtained on ozonolysis of a monomer `(A)` of a polymer. (a) Give

Monjur Alahi

`HCHO` and `CH_(3)-overset(O)overset(||)C-overset(O)overset(||)C-H` are the products obtained on ozonolysis of a monomer `(A)` of a polymer.
(a) Give the structure of (A)
(b) Draw the all "cls" form of a polymer of a monomer (A)


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Salim Ahmed Kawsar

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Correct Answer - a. `(A)rarrCH_(3)-underset(CH_(2))underset(||)C-CH=CH_(2)`

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IUPAC name for the amine `{:(" "CH_(3)),(" |"),(CH_(3)-N-C-CH_(2)-CH_(3)),(" | |"),(" "CH_(3)CH_(2)H_(5)):}` is

Correct Answer - D `{:(" "CH_(3)),(" |"),(H_(3)C-Noverset(3)(-C)-overset(2)(C)H_(2)-overset(1)(C)H_(3)),(" |"" 4|"),(" "CH_(3)""CH_(2)-overset(5)(C)H_(3)),("3-N, N-Dimethylamino-3-methylpentane"):}`

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Which would undergo `S_(N^(2))` reaction faster in the following pair and why? `CH_(3)-CH_(2)-Br and CH_(3)-underset(CH_(3))underset(|)overset(CH_(3))

`CH_(3)-CH_(2)-Br` because it is a primary alkyl halide and offers less steric hindrance to the attacking nucleophile as compared to the other alkyl halide which is of tertiary nature.

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Write the products of the following reaction: (i). `CH_(3)-underset(Cl)underset(|)(C)H-CH_(3)overset(Na//Ether)to`? (ii). `CH_(3)CH_(2)-B r overset(Ag

(i). `underset("2,3-Dimethylbutane")(CH_(3)-underset(CH_(3))underset(|)(C)H-underset(CH_(3))underset(|)(C)H-CH_(3))` (ii). `underset("Elhyl isocyanide")(CH_(3)-CH_(2)-N underset(rarr)(=)C)`

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Arrange the following in order of decreasing reactivity towards `S_(N^(2))` reactions: `CH_(3)CH_(2)CH_(2)Cl(I),CH_(3)CH_(2)-CHCl-CH_(3)(II)(CH_(3))_(

Correct Answer - A Towards `S_(N^2)` reaction mechianism, the order of reactivity of alkyl halides is primarygtsecondarygttertiary. The steric hindrance has also adverse effect on the reactivity. In the light of...

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(a) Give simple test to distinguish among hexane and `CH_(3)-CH=CHCI.` (b) Give simple test to distinguish among `CH_(3)-CH=CHCI,CH_(3)CH_(2)CH_(2)CI

(a) Hexane and methyl vinyl chloride are distinguished by adding bromine in `C CI_(4)` to each. The red brown bromine colour persists in alkane but isappears in methyl vinyl chloride....

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Match the following `{:("Column I",,"Column II"),("(Reactants)",,"(Products)"),("(a)" CH_(3)CH_(2)CH_(2)CH_(2)Br+KOH(alc),,"(p)Butan-2-ol"),("(b)"CH_(

Correct Answer - `(a-r,t):(b-q.t);(c-s,t);(d-p)`

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Which of the following is maximum reactive towards Lucas reagent? `CH_(2)=CH-CH_(2)OH,CH_(3)-underset(OH)underset(|)(C)H-CH_(3),CH_(3)-CH_(2)-CH_(2)OH

Correct Answer - `CH_(2)=CHCH_(2)OH`

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What is the correct relationship between the following compounds? `CH_(3)-CH_(2)-undersetunderset(CH_(3))(|)(CH)-CH_(2)-CH_(3),CH_(3)-CH_(2)-CH_(2)-CH

Correct Answer - A Carbon skeleton is different in both compounds.

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Write the product of following reactions : (a) `CH_(3)-overset(H_(3)C)overset(|)(C )=overset(CH_(3))overset(|)(C )-CH_(3) underset(Zn//H_(2)O)overset(

Correct Answer - (a) `CH_(3)-overset(CH_(3))overset(|)(C )=O` , (b) `CH_(3)-underset(O)underset(||)(C )-underset(O)underset(||)(C )-CH_(3)`, (c ) `CH_(3)-COOH` , (d) `CH_(3)-overset(CH_(3))overset(|)(C )=O+CH_(3)-overset(O)overset(||)(C )-OH`

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An alkene give two moles of `HCHO`, one mole of `CO_(2)` and one mole of `CH_(3)-underset(O)underset(||)(C )-CHO` on ozonolysis. What is its structure

Correct Answer - B `CH_(2)=C=CH-underset(CH_(2))underset(||)(C )-CH_(3) overset(O_(3)//Zn+H_(2)O) rarr 2HCHO+CO_(2)+CH_(3)-CO-CHO`

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