What do you mean by olefin? Give an example.
(N/A) Alkenes are commonly referred to as olefins,a term derived from the phrase 'oil-forming'. This name originated because the first member of the series,ethylene or ethene $(C_{2}H_{4})$,reacts with chlorine to produce an oily liquid,$1$,$2$-dichloroethane. Example: Ethene $(CH_{2}=CH_{2})$.
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Which reactions are most common in alkenes?
Medium
View SolutionThe reaction of propene with $Cl_2$ at $400-600\,^oC$ gives...........
Medium
View SolutionAssertion $(A)$: Reaction of but$-1-$ene with $HBr$ gives $1-$bromobutane as major product.
Reason $(R)$: Addition of hydrogen halides to alkenes proceeds according to Markownikoff's rule.
The correct answer is
Reason $(R)$: Addition of hydrogen halides to alkenes proceeds according to Markownikoff's rule.
The correct answer is
Consider the following reactions:
$Ph-CH_2-CH=CH_2 \xrightarrow{H^+/H_2O} P$
$Ph-CH_2-CH=CH_2 \xrightarrow[(ii) NaBD_4]{(i) Hg(OAc)_2, H_2O} Q$
$Ph-CH_2-CH=CH_2 \xrightarrow[(ii) H_2O_2/OH^-]{(i) BD_3, THF} R$
Identify the products $P, Q$ and $R$.
$Ph-CH_2-CH=CH_2 \xrightarrow{H^+/H_2O} P$
$Ph-CH_2-CH=CH_2 \xrightarrow[(ii) NaBD_4]{(i) Hg(OAc)_2, H_2O} Q$
$Ph-CH_2-CH=CH_2 \xrightarrow[(ii) H_2O_2/OH^-]{(i) BD_3, THF} R$
Identify the products $P, Q$ and $R$.
For the given reaction sequence,identify $C$ and $D$:
$3\text{-methylbut-1-ene}$ $\xrightarrow[(ii) NaBH_4]{(i) Hg(OAc)_2/H_2O} A$ $\xrightarrow{H^\oplus/\Delta} B$ $\xrightarrow{O_3/Zn/H_2O} C + D$
$3\text{-methylbut-1-ene}$ $\xrightarrow[(ii) NaBH_4]{(i) Hg(OAc)_2/H_2O} A$ $\xrightarrow{H^\oplus/\Delta} B$ $\xrightarrow{O_3/Zn/H_2O} C + D$
Medium
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