Predict the product from claisen condensation of the following pair of esters. `Ph-CH_(2)-underset(O)underset(||)(C)-OCH_(3)+Ph-underset(O)underset(||

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Predict the product from claisen condensation of the following pair of esters. `Ph-CH_(2)-underset(O)underset( ... )(C)-OCH_(3)overset(EtO^(Theta))to`

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Description : Predict the product from claisen condensation of the following pair of esters. `Ph-CH_(2)-underset(O)underset(||)(C)-OCH_(3)+Ph-underset(O)underset(||

Last Answer : Predict the product from claisen condensation of the following pair of esters. `Ph-CH_(2)-underset(O)underset( ... )(C)-OCH_(3)overset(EtO^(Theta))to`

Description : `CH_(3)-underset(CH_(3))underset(|)CH-OCH_(3)overset(HI)underset(excess Delta)rarr` Which of the following is not formed in the above reaction ?

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Description : Which of the following compounds is produced when this reaction rakes place ? `CH_(3)-underset(CH_(3))underset(|)CH-OCH_(3)overset(HI)underset(cold)ra

Last Answer : Which of the following compounds is produced when this reaction rakes place ? `CH_(3)-underset(CH_(3)) ... OH` C. Both of these D. None of these

Description : The end product (B) of the reaction sequence: `C_(2)H_(5)-underset(H)underset(|)(N)-CH_(3) overset(Ph-overset(O)overset(||)(C)-Cl)underset(NaOH)rarrA

Last Answer : The end product (B) of the reaction sequence: `C_(2)H_(5)-underset(H)underset(|)(N)-CH_(3) overset(Ph-overset ... )underset(H_(2)O)rarr B` A. B. C. D.

Description : The major product (B) formed in the reaction sequence is: `overset(Ph-overset(O)overset(||)(C)-CI)underset(dil.NaOH)rarrA overset(1.CH_(3)MgBr)underse

Last Answer : The major product (B) formed in the reaction sequence is: `overset(Ph-overset(O)overset(||)(C)-CI)underset(dil. ... )overset(||)(C)-CH_(3)` B. C. D.

Description : `Ph-CH=CH-underset(O)underset(C)-H overset((i) CH_(3)CH_(2)MgBr)to overset((ii) H_(3)O^(o+))to(X) overset(Cu,Delta)to(Y)`

Last Answer : `Ph-CH=CH-underset(O)underset(C)-H overset((i) CH_(3)CH_(2)MgBr)to overset((ii) H_(3)O^(o+))to(X) ... -underset(O)underset(||)(C)-CH=CH-CH_(2)-CH_(3)`

Description : `Ph-CH=CH-underset(O)underset(C)-H overset((i) CH_(3)CH_(2)MgBr)to overset((ii) H_(3)O^(o+))to(X) overset(Cu,Delta)to(Y)`

Last Answer : `Ph-CH=CH-underset(O)underset(C)-H overset((i) CH_(3)CH_(2)MgBr)to overset((ii) H_(3)O^(o+))to(X) ... -underset(O)underset(||)(C)-CH=CH-CH_(2)-CH_(3)`

Description : Write the product of following reactions `(a) CH_3-CH_(2)-OH overset(I_(2)//KOH)to "" Ph-CH_(2)-CO-CH_(3)overset(I_(2)//KOH)to` (c) CH_(3)-underset(OH

Last Answer : Write the product of following reactions `(a) CH_3-CH_(2)-OH overset(I_(2)//KOH)to "" Ph-CH_(2)-CO- ... (OH)underset(|)(CH)-Ph overset(I_(2)//KOH)to`

Description : Write the product of following reactions `(a) CH_3-CH_(2)-OH overset(I_(2)//KOH)to "" Ph-CH_(2)-CO-CH_(3)overset(I_(2)//KOH)to` (c) CH_(3)-underset(OH

Last Answer : Write the product of following reactions `(a) CH_3-CH_(2)-OH overset(I_(2)//KOH)to "" Ph-CH_(2)-CO- ... (OH)underset(|)(CH)-Ph overset(I_(2)//KOH)to`

Description : The final major product of the reaction is: `Ph-overset(OH)overset(|)underset(Ph)underset(|)(C)-underset(" "NH_(2))underset(|)(CH)-CH_(3)overset(NaNO_

Last Answer : The final major product of the reaction is: `Ph-overset(OH)overset(|)underset(Ph)underset(|)(C)-underset(" " ... (" "CH_(3))underset(|)(C)-CH_(3)`

Description : Base-catalyzed condensation of two ester molecules to form an alcohol and β-keto ester is called (a) Claisen condensation (b) Corey-House reaction (c) Aldol condensation (d) Transesterification

Last Answer : Claisen condensation

Description : Claisen condensation gives__________ a) Hydroxyl compound b) β- keto ester c) Γ- diketone d) Α-diketone

Last Answer : b) β- keto ester

Description : In the given reaction `{:(" "CH_(3)),(" |"),(H_(3)C-C-C-CHO),(" | ||"),(" "H_(3)C " "O):} overset("(i)Conc. NaOH")underset((ii)H^(+)) to` product is

Last Answer : In the given reaction `{:(" "CH_(3)),(" |"),(H_(3)C-C-C-CHO),(" | ||"),(" "H_(3)C " "O):} overset("(i) ... )C-C-C-CH_2),(" | ||"),(" "H_(3)C " "OH):}`

Description : In the given reaction `{:(" "CH_(3)),(" |"),(H_(3)C-C-C-CHO),(" | ||"),(" "H_(3)C " "O):} overset("(i)Conc. NaOH")underset((ii)H^(+)) to` product is

Last Answer : In the given reaction `{:(" "CH_(3)),(" |"),(H_(3)C-C-C-CHO),(" | ||"),(" "H_(3)C " "O):} overset("(i) ... )C-C-C-CH_2),(" | ||"),(" "H_(3)C " "OH):}`

Description : `CH_(3)CH=CH_(2)overset(HCI)rarrXoverset(Dry Ag_(2)O)underset(Heat)rarrY` The product Y in the above sequence is

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Description : For a reaction `CH_(3)OCH_(3) (g) rarr CH_(4) (g)+H_(2) (g)+CO(g)` at 750K, the rate constant is `3.52xx10^(-3)" min"^(-1)`. Starting with a pressure

Last Answer : For a reaction `CH_(3)OCH_(3) (g) rarr CH_(4) (g)+H_(2) (g)+CO(g)` at 750K, the rate constant ... to become 760 mm Hg ? (Take log 2.25 = 0.352)

Description : How many of the following compounds would give Iodoform test (1) `s CH_(3) - CO - CH_(2) - CO - OCH_(3)` (2) `C_(6) H_(5) - CO - CH_(2) - CO - C_(6)H_

Last Answer : How many of the following compounds would give Iodoform test (1) `s CH_(3) - CO - CH_(2) - CO - OCH_(3)` (2 ... `CH_(3) - CO - CH_(2) - CHOH - CH_(3)`

Description : `HBr` reacts with `CH_(2)=CH-OCH_(3)` under anhydrous conditions at room temperature to give:

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Description : `Ph - underset(OH) underset(|)overset(CH_(3))overset(|)(C) - underset(OH) underset(|)overset(Ph)overset(|)(C) - Ph underset(H_(2)SO_(4))overset("Conc"

Last Answer : `Ph - underset(OH) underset(|)overset(CH_(3))overset(|)(C) - underset(OH) underset(|)overset(Ph)overset(| ... ) - underset(O)underset(||)(C) - CH_(3)`

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Last Answer : Number of possible intra molecular aldol condensation product on heating with NaOH `H_(3)C-overset(O)overset(|| ... CH_(2)-overset(O)overset(||)(C)-H`

Description : Number of possible intra molecular aldol condensation product on heating with NaOH `H_(3)C-overset(O)overset(||)(C)-CH_(2)-CH_(2)-CH_(2)-overset(O)ove

Last Answer : Number of possible intra molecular aldol condensation product on heating with NaOH `H_(3)C-overset(O)overset(|| ... CH_(2)-overset(O)overset(||)(C)-H`

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Description : In the given reaction which one of the following statement is correct - `C_(6)H_(5)-underset(CH_(3))underset(|)(C)=O+NH_(2)-OH to "Oxime" overset(PCl_

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Description : `{:(" "O^(16)),(" ||"),(CH_(3)-C-H overset(D_(2)O^(18))underset(D^(o+))to CH_(3)-C-H),(" ||"),(" "._(18)O):}` Give the following reaction intermediate

Last Answer : `{:(" "O^(16)),(" ||"),(CH_(3)-C-H overset(D_(2)O^(18))underset(D^(o+))to CH_(3)-C-H),(" ||"),(" "._( ... ,(" |"),(CH_(3)-C-H),(" |"),(" "._(18)OD):}`

Description : Which of the following pairs of ions is more stable? (a) `CH_(3)CH_(2)O^(Ө)and CH_(2)=underset("(II)")(CH)-O^(Ө)` (b) `(CH_(3))_(2)underset("(I)")over

Last Answer : Which of the following pairs of ions is more stable? (a) `CH_(3)CH_(2)O^(Ө)and CH_(2)=underset("(II)" ... underset(..)O-CH=CH-CH=overset(o+)"N"Me_(2)`

Description : The order of stability of the following carbocations: `underset("I")(CH_(2)C=CH-overset(o+)CH_(2))" , "underset("II")(CH_(3)-CH_(2)-overset(o+)CH_(2))

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Description : `CH_(3)-CH_(2)-CH_(2)-underset(OH)underset(|)(CH)-CH_(3) underset(-H_(2)O)overset(H^(o+))rarr[F] overset(Br_(2)//C Cl_(4))rarrC_(5)H_(10)Br_(2)(G)` Ho

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Description : `CH_(3) equiv C CH_(3) overset(Na, NH_(3) (i))(rarr) Q overset("dil. Cold")underset(KMnO_(4))(rarr) R` If Q is an unsaturated hydrocarbon then product

Last Answer : `CH_(3) equiv C CH_(3) overset(Na, NH_(3) (i))(rarr) Q overset("dil. Cold")underset(KMnO_(4))(rarr) R` If ... ii & iii B. i & ii C. only v D. only iv

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Description : The major product H in the given reaction sequence is `CH_(3)-CH_(2)-CO-CH_(3) overset(._(Theta)CN)toG overset(95% H_(2)SO_(4)) underset("Heat")toH`

Last Answer : The major product H in the given reaction sequence is `CH_(3)-CH_(2)-CO-CH_(3) overset(._(Theta)CN) ... CH=underset(CH_(3))underset(|)(C)-CO-NH_(2)`

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Description : In the given reaction `CH_(3)-CH_(2)-NH-CH_(2)-CH_(2)-CI overset((i)CH_(3)I ("excess"))underset((ii)AgOH//Delta)rarr[X]` is the major product, [X] wil

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Description : Predict the nature of P in the following reaction: `Me_(3)C CH_(2)NH_(2) overset(HOMO)rarrP` (main product)

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Description : How many of the following will give 2,4-DNP test. `1.CH_(3)CH=O " " (2) CH_(3)-overset(O)overset(||)(C)-CH_3 " " (3) Ph-CH=O " " (4) Ph-overset(O)over

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