Question

Identify Z in

CH₃CH₂CH₂Br □(→┴aq. NaOH ) X
□(→┴Al₂O₃ ) C□(→┴Cl₂/H₂O ) Z
(a) Mixture of CH₃CHClCH₂Cl and CH₃CHOHCH₂Cl
(b) CH₃CHOHCH₂Cl
(c) CH₃CHClCH₂OH
(d) CH₃CHClCH₂Cl

Answer 1

Identify Z in

CH₃CH₂CH₂Br □(→┴aq. NaOH ) X

□(→┴Al₂O₃ ) C□(→┴Cl₂/H₂O ) Z

(a) Mixture of CH₃CHClCH₂Cl and CH₃CHOHCH₂Cl

(b) CH₃CHOHCH₂Cl

(c) CH₃CHClCH₂OH

(d) CH₃CHClCH₂Cl

Answer 2

CH₃CHOHCH₂Cl is the major final product.

Explanation:

• The reactant is the bromopropane.

• The reagent is aqueous sodium hydroxide which is a dilute base.

• This causes nucleophilic substitution on the alkane forming alcohol..

• Thus product X is n propanol.

• This product when is dried through alumina forms propene.

• This product when reacted with chlorine water, forms 1 chloro propan 2 ol.

For more information about chlorine water reactions,

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Double bond alkenes are detected by adding ? a-liquid b- liquid br2 c- liquid cl d- Baeyer s reagent