The enolate ion that reacts with 3-buten-2-one to form (Y) is :
(a) (b) (c) (d)
()
Product (B) in the above reaction is :
→∆base (A), (A) + →∆HO-(dil)(B)
Which of the following compounds will not undergo Cannizaro reaction, when treated with 50% aqueous alkali?
() O ||Ph-C-H
→∆H+(A) →ZnO3(B) →∆HO-(C) ; Product (C) is :
(72%)
→NaOHProduct; Product is :
Which of the following does not undergo polymerization?
CH3CHO
HCHO
CH3COCH3
None of these
Formaldehyde can be distinguished from acetaldehyde by:
Fehling's solution
Schiff's reagent
Ammonia
Ammoniacal AgNO3
→(2) H+, H2O(1) Et-Li(3-eq.) (P) ; Product (P) of the reaction is :
(65% yield)
→∆H3O (A) , Product (A) obtained is :
Which of the following acid on heating gives geometrical isomers as a product ?
() OH |CH3-CH-CO2H
() CH3-CH-CH2-CO2H | OH
→MeOHA→PCl3B→MeNH2C ; Product (C) of the reaction is :
(a) (b)
(c) (d)
→LiAlH4A→PCCB→NH2-NH2C , Product (C) is :
→-CO2A→HClB→aq KOHC. Product (C) is :
(a) O ||CH3-CH2C-H (b)
+R-CH2-NH2→THFK2CO3 (A)
(71%)
In above reaction identify major product (A) of the reaction:
→KOH A →H3O+ B →PCl5 C →LiAlH4 D →H+/∆(X)
Product (X) is :
A key step in the hydrolysis of acetamide in aqueous acid proceeds by nucleophilic addition of :
H3O+ to O ||CH3C NH2
H2O to +OH || CH3C NH2
H3O+ to +OH ||CH3CNH2
HO- to +OH ||CH3CNH2
In Tischenko's reaction an aldehyde is heated with catalyst:
NaOH
Al(OC2H5)3
Al2O3
Mg/Hg
Formalin is:
formaldehyde
formaldehyde+methanol
formaldehyde+methanol+water
formaldehyde+water
Doctors detect diabetes disease by testing the presence of glucose in urine with:
Nessler's reagent
Fenton's reagent
Silver nitrate solution
Acetals are:
Aldehyde
Diethers
Ketones
Hydroxy aldehyde
All but one of the following compounds react with aniline to give acetanilide. Which one does not?
→
O ||(a) CH3C-Cl (b)
(c) O ||CH3C-H (d)
→H2OLiAlH4(excess) Product of the reaction is :
1.
3.
CH2‐O‐COR |CH‐O‐COR2 |CH2‐O‐COR3+ 3NaOH → (A) + Salt of fatty acid (soap)
Product (A) of the reaction is :
(a) Ethylene glycol (b) Glycerol
(c) Glyceryltrinitrate (explosive) (d) Cumene hydrogen peroxide
(A) ; Product (A) of the reaction is :
O ||Ph—C—Cl+ →: Identify the product (A).
Which is the major product of the following reaction?
→PCl5(A) →LiAlH4(B) →PCC(C) →∆HO-(D)
Which of the following compounds will undergo decarboxylation on heating?
(d) 1 nd 4
(a) 2 and 3&nsp;
() 3 only
(b) 3 an 4
→dry HCl gas (major product);3eq. EtOH (A); Product A is :
The correct order of reactivity of >CO group in given compounds is:
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