`CH-=CH overset(H_(g)SO_(4))underset(H_(2)SO_(4))rarr (X) overset(LiAIH_(4))rarr (Y) overset(P_(4)//Br_(2))rarr (Z)` In this sequence of reaction, the

Monjur Alahi

`CH-=CH overset(H_(g)SO_(4))underset(H_(2)SO_(4))rarr (X) overset(LiAIH_(4))rarr (Y) overset(P_(4)//Br_(2))rarr (Z)`
In this sequence of reaction, the (Z) is:
A. Ethylene bromide
B. Ethanol
C. Ethyl bromide
D. Ethylidene bromide.


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Salim Ahmed Kawsar

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Correct Answer - C
`HC-=CHoverset(H_(2)"O"//Hg^(2+))underset(H_(2)SO_(4))rarrH_(3)C-overset(O)overset(||)underset((X))C-H`
`overset(LiAlH_(4))rarrH_(3)C-underset((Y))("CH"_(2))-OHoverset(P_(4)//Br_(2))rarrunderset("Ethyl bromide")(C_(2)H_(5)Br)`

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The IUPAC name of `underset(CN)underset(|)(CH_(2))-underset(CN)underset(|)(CH)-underset(CN)underset(|)(CH_(2))` is:

Correct Answer - C `underset("Propane-1,2,3,-tricarbonitrile")underset()(overset(3)underset(CN)underset(|)(CH_(2))-overset(2)underset(CN)underset(|)(CH)-overset(1)underset(CN)underset(|)(CH_(2)))`

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The number of tertiary carbon atom in : `CH_(3)-overset(CH_(3))overset(|)underset(H)underset(|)C-overset(CH_(3))overset(|)underset(H)underset(|)C-over

Correct Answer - C `underset(C_(2), C_(3)" and "C_(5) " are tertiary carbon atoms.")underset()(overset(1)CH_(3)-overset(CH_(3))overset(|)underset(H)underset(|)(C^(2))-overset(CH_(3))overset(|)underset(H)underset(|)(C^(3))-overset(CH_(3))overset(|)underset(CH_(3))underset(|)(C^(4))-overset(CH_(3))overset(|)underset(H)underset(|)(C^(5))-overset(6)CH_(3))`

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The IUPAC name of `CH_(3)-underset(Cl)underset(|)C=underset(CH_(3))underset(|)C-underset(C_(2)H_(5))underset(|)CH-CH_(2)-CequivCH`

Correct Answer - A `underset("6-Chloro-4-ethyl-5-methylhept-1-yn-5-ene")underset()(overset(7)CH_(3)-overset(6)underset(Cl)underset(|)C=overset(5)underset(CH_(3))underset(|)C-overset(4)underset(C_(2)H_(5))underset(|)(CH)-overset(3)CH_(2)-overset(2)(C^(@))overset(1)CH_(3))`

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The IUPAC name of `CH_(3)-underset(CH_(3))underset(|)CH-underset(CH_(3))underset(|)CH-CH_(2)CH_(2)-underset(CH_(3))underset(|)CH-CH_(3)`

Correct Answer - B `underset("2,3,6-Trimethylheptane")underset()(overset(1)CH_(3)-overset(2)underset(CH_(3))underset(|)(CH)-overset(3)underset(CH_(3))underset(|)(CH)-overset(4)CH_(2)-overset(5)CH_(2)-overset(6)underset(CH_(3))underset(|)(CH)-overset(7)CH_(3))`

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IUPAC name of `overset(5)CH_(3)-overset(4)underset(OH)underset(|)CH-overset(3)CH_(2)-overset(2)underset(COOH)underset(|)CH-overset(1)CH_(3)` is

Correct Answer - B (B) `underset("4-Hydroxy 2-methylpentanoic acid.")underset()(overset(5)CH_(3)-overset(4)underset(OH)underset(|)(CH)-overset(3)CH_(2)-overset(2)underset(COOH)underset(1|)(CH_(2))-CH_(3))`

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In the hydrocarbon `underset(6)underset()(CH_(3))-underset(5)underset()(CH)=underset(4)underset()(CH)-underset(3)underset()(CH_(2))-underset(2)underse

Correct Answer - D `underset(6)(CH_(3))=underset(5)(overset(sp^(2))(CH))=underset(4)(CH)-underset(3)(overset(sp^(2))(CH_(2)))-underset(2)Cequivunderset(1)(overset(sp)CH)`

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Consider the following nucleophiles `underset(I)underset()(H_(2)O),underset(II)underset()(CH_(3)COO^(-)),underset(III)underset()(overset(-)OH),underse

Correct Answer - D See A-Level Information.

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In given sequence of reaction predict X `X overset(KOH)underset(H_(2)O)rarr Y overset(Al_(2)O_(3))underset(633 K)rarr Z overset([O])rarr2` moles of `C

Correct Answer - A `H_(3)C-CH_(2)-underset((X))underset(I)underset(|)(C )H-CH_(3)overset(KOH)underset(H_(2)O)rarr` `H_(3)C-CH_(2)-underset((Y))underset(OH)underset(|)(C )H-CH_(3)overset(-H_(3)O)underset(Al_(2)O//633 K)rarr` `H_(3)C-CH(Z)CH-CH_(3) overset(KMnO_(4)//H_(2)SO_(4))underset(Delta)rarr 2CH_(3)COOH`

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In the following sequence of the reactions : `CH_(3)CH_(2)CH_(2)I overset(KOH(Alc.))rarr A overset((i) Br_(2))underset((ii) alc. KOH)rarr B overset(Na

Correct Answer - A `CH_(3)CH_(2)CH_(2)I overset(KOH(alc))rarr underset((A))(CH_(3)-CH=CH_(2))overset(Br_(2))rarr CH_(3)-underset(Br)underset("|")("C")H-underset(Br)underset("|")("C")H_(2)overset(alc. KOH)rarr underset((B))(CH_(3)-C-=CH overset(Na)underset(NH_(3))rarr2CH_(3)-underset((C ))(CH=CH_(2))`

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Given the following sequence of reactions `CH_(3)CH_(2)I overset(KCN)rarr A overset(OH^(-))underset("Partial hydrolysis")rarr B overset(Br_(2))underse

Correct Answer - A `CH_(3)CH_(2)I overset(NaCN)rarr CH_(3)CH_(2)CN overset("Partial")underset("hydrolyses")rarr CH_(3)CH_(2)CONH_(2)overset(Br_(2))underset(NaOH)rarr CH_(3)CH_(2)NH_(2)`

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