Ethanal and But-2-en-al reacts in the presence of strong base NaOH .The major product is X.X is formed by removal of –
The synthesis of 3 – octyne is achieved by adding a bromoalkane into a mixture of sodium amide and an
alkyne. The bromoalkane and alkyne respectively are
What is the Thermodynamics product obtained when 4-methylPent-1,3-diene reacts with HBr?
If n=no. of chiral atoms,a=no. of optically active isomers,r=no.of racemic isomers and m=no. of meso forms,then find n,a,r and m for tartaric acid(CHOHCOOH-CHOHCOOH)-
The given compound reacts with Pd/BaSO4,H2,quinoline to give an aldehyde X.X
Butanone reacts with Benzaldehyde in presence of NaOH /water to give X while in presence of acid ,it gives Y.X and Y are:
Acetoacetic ester(H3CCOCH2COOC2H5) shows tautomerism. Which of following are correct statements about acetoacetic ester?
a.in liquid state,enol content is more than keto content.
b.in aqueous solution,enol content is more than keto content.
c.it adds on HCN,NaHSO3,etc.
d.it gives dark colouration with ferrous chloride.
Integer answer type (0-9) :
How many among following compounds will give a yellow precipitate with iodine and alkali?
2-Hydroxypropane,acetamide,methyl acetate,acetophenone,ICH2COCH2Me,MeCOOCOMe,acetone,PhCHOHMe
Match the following:
A.Gives unpleasant odour when p.Phenol
reacted with chloroform and
solid KOH
B.Gives Prussian blue colour in q.Aniline
Sodium fusion test
C.A brisk effervescence when r.Benzoic acid
reacted with sodium bicarbon
ate
D.Gives +ve neutral Ferric chlo s.Ammonia
Ride test
t.o-nitro,p-
hydroxybenzoic
acid
Assertion reason type:
Assertion:Iodoform is obtained by the reaction of acetone with hypoiodite but not with iodine ion.
Reason:hypoiodite is a weaker base than iodide ion.
Option( A)' i'f the statementsa re TRUE and STATEMENT-2is the correcte xplanationo f
STATEMENT-1
Option( B) if botht he statementsa re TRUE but STATEMENT-i2s NOTt he correcte xplanationo f
STATEMENT1-
Option( C) if STATEMENT-i1s TRUEa ndS TATEMENT-i2s FALSE'
option( D) if STATEMENT-i1s FATSEa ndS TATEMENT-i2s TRUE.