Home
Class 12
CHEMISTRY
(a) Write the products of the following ...

(a) Write the products of the following reactions :

(ii) `CH_(3)MgBr+CO_(2)underset(H_(3)O^(+))overset("Dry ether")rarr`
(iii) `CH_(3)CH_(2)COOH + Br_(2) overset("Red Phosphorus")rarr`
(b) Write simple chemical tests to distinguish between the following pairs of compounds :
(i) Propanal and propanone (ii) Benzaldehyde and Benzoic acid

Text Solution

Verified by Experts


(b) (i) Propanal and Propanone
Tollen's reagent test
Propanal being aldehyde reduces Tollen's reagent but propanone being a ketone does not
`underset("Propanal")(CH_(3)CH_(2))CHO+2underset("regent")underset("Tollen's")([Ag(NH_(3))_(2)])^(+)+3OH^(-)rarr underset("ion")underset("Propanoate")(CH_(3)CH_(2)COO^(-))+underset("mirro)")underset("(Silver")(2Agdarr)+4NH_(3)+2H_(2)O`
`underset("Propanal")(CH_(3)COCH_(3))overset("Tollen's reagent")rarr"No silver mirror"`
(ii) Benzaldehyde and Benzoid acid
`NaHCO_(3)` test

It produces brisk effervescence due to evolution of `CO_(2)`.
Promotional Banner

Similar Questions

Explore conceptually related problems

(a) Write the product(s) in the following reactions (i) (ii) CH_(3) - overset(CH_(3))overset(|)(CH) - O - CH_(2) - CH_(3) overset(HI)rarr ? + ? (iii) CH_(3) - CH = CH - CH_(2) - OH overset("PCC")rarr? (b) Given simple chemical tests to distinguish between the following pairs of compounts: (i) Ehtanol and Phenol (ii) Propanol and 2-methylpropan-2-ol

Write the products of the following reactions : (i) (ii) CH_(3)-CH=CH-CN overset((a)DiBAL-H)underset((b)H_(2)O)rarr?

(a) Write the product (s) in the following reactions: (i) (iii) CH_(3)-CH=CH-CN underset((b)H_(2)O)overset((a)"DIBAL-H")to (b) Give simple chemical tests to distinguish betweenn the following pairs of compounds: (i) Butanal and Butan-2-one (ii) Benzoic acid and Phenol

Write the major product(s) in the following : (i) (ii) 2CH_(3)-underset(overset(|)(CH_(3)))(CH)-CH_(3) underset("dry ether")overset(Na)(to) (iii) CH_(3)-CH_(2)-Br overset("AgCN")(to)