Question

H2C =CH2+Br2---- ccl4​

Answer 1

h2c=ch2+br+ccl4-------=ch2br--ch2br

Answer 2

Note: The correct question must be-

Fill in the blanks.

$H_{2}C=CH_{2}+Br_{2}+CCl_{4}\to$___A____$+Alc.\ KOH\to$__B____

1. Water aids in the formation of bromohydrin, which aids in the addition of $Br$ and $OH$ to the double bond.
2. As a result, the double bond is broken, and each carbon atom is bound by a bromine atom.
3. During this reaction, bromine's dark brown colour turns colourless.
4. Vicinal dibromides are used in the treatment of alkenes with bromine, $Br_{2}$.
5. Bromine forms a double bond on the opposite sides.
6. Carbon tetrachloride is a widely used solvent, $CCl_{4}$.

Hence, A is $CH_{2} Br-CH_{2} Br$ and B is $CH\equiv CH$.

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