How many secondary carbon and hydrogen atoms | vedclass

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Question

(A) The molecule is $CH_3-CH(Br)-CH(Br)-CH_3$ ($2$,$3$-dibromobutane).$1.$ $A$ secondary carbon ($2^\circ$ $C$) is a carbon atom bonded to two other c

Vedclass · Accepted Answer

$2, 2$

Vedclass · Answer

(A) The molecule is $CH_3-CH(Br)-CH(Br)-CH_3$ ($2$,$3$-dibromobutane).$1.$ $A$ secondary carbon ($2^\circ$ $C$) is a carbon atom bonded to two other carbon atoms. In this molecule,the two central carbons (C2 and C3) are each bonded to two other carbons (one methyl group and one other central carbon). Thus,there are $2$ secondary carbons.$2.$ Secondary hydrogens are the hydrogen atoms attached to secondary carbons. Each of the two secondary carbons is bonded to one hydrogen atom. Therefore,the total number of secondary hydrogens is $1 + 1 = 2$.Thus,the number of secondary carbons and secondary hydrogens are $2$ and $2$ respectively.

Compound	Bromine	$Na$ metal	Chromic acid	Lucas reagent
$X$	decolourises	bubbles	Orange to Green	No reaction
$Y$	No reaction	No reaction	No reaction	No reaction

How many secondary carbon and hydrogen atoms are present in the molecule $CH_3-CH(Br)-CH(Br)-CH_3$ respectively?

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