MCQ
Bromination of alkanes involves
- ACarbanions
- BCarbocations
- CCarbenes
- ✓Free radicals
✓
Answer
Correct option: D.
Free radicals
d
(d) Halogenation of alkanes takes place in presence of light (sunlight or $UV$) or at elevated temperature via free radical.
(d) Halogenation of alkanes takes place in presence of light (sunlight or $UV$) or at elevated temperature via free radical.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Which one of the following species does not exist under normal conditions ?
$CH_3 CH_2CH(OH)CH(CH_3)_2 + CH_3COCl \xrightarrow{base} $ $CH_3CH_2CH(OCOCH_3 )CH(CH_3)_2 + HCl$
→In the above reaction, if the reactant alcohol is a pure $R-$ isomer the product would.
The increasing order of $pK_b$ for the following compounds will be
→Two solution labelled as $3\, M\, HCl$ and $1M\, HCl$ are mixed in the ratio of $x : y$ by volume and the molarity of resulting solution is $1.5\, M.$ What is the molarity of the resulting solution if they are mixed in the ratio $y : x$ by volume ? ............ $\mathrm{M}$
→Which of the statements is not true?
Caffeine has a molecular weight of $194$. If it contains $28.9\%$ by mass of nitrogen, number of atoms of nitrogen in one molecule of caffeine is
→The element having electronic configuration belongs to $n{s^2}(n - 1){d^{1 - 10}}(n - 2){f^{1 - 14}}$
→Which one of the following will be able to show cis-trans isomerism :
$1.46 \,\mathrm{~g}$ of a biopolymer dissolved in a $100\, \mathrm{~mL}$ water at $300\, \mathrm{~K}$ exerted an osmotic pressure of $2.42 \times 10^{-3}$ $bar.$
→The molar mass of the biopolymer is $.....\,\times 10^{4} \,\mathrm{~g}\,\mathrm{~mol}^{-1}$. (Round off to the Nearest Integer)
[Use : $\mathrm{R}=0.083\, \mathrm{~L}\, bar \,\mathrm{mol}^{-1} \,\mathrm{~K}^{-1}$ ]
The aqueous solution containing which one of the following ions will be colourless