MCQ
What will be the product in the following reaction

  • B

  • C

  • D

Answer

Correct option: A.

a
(a)$NBS$  is a selective brominating reagent since it normally brominates the ethylenic compounds in the allylic position.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Which of the following halides has maximum melting point
Assign $A, B, C, D$ from given type of reaction. $Zn\left( s \right) + 2HCl \longrightarrow ZnC{l_2} + {H_2}$
Match List $I$ with List $II$ and select the correct answer using the codes given below the lists

 $\begin{array}{|l|l|} \hline List\,\,I & List\,\,II \\ \hline (A)\,\,Peroxide & (1)\,\,{C_3}{O_2} \\ \hline (B)\,\,Superoxide & (2)\,\,Pb{O_2} \\ \hline (C)\,\,Dioxide & (3)\,\,K{O_2} \\ \hline (D)\,\,Suboxide & (4)\,\,{H_2}{O_2} \\ \hline \end{array}$

Find iso-electric point of given amino acid

$\begin{align}
   \begin{matrix}
   C{{H}_{3}}-CH-C{{O}_{2}}H  \\
   |\,\,\,\,\,\,\,\,  \\
   \underset{\oplus }{\mathop{N}}{{H}_{3}}  \\
\end{matrix}\,\,\,\,\,\,p{{K}_{a}}=2.2 \\ 
  \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,p{{K}_{b}}=4.4 \\ 
\end{align}$

Which of the following is the correct order of increasing field strength of ligands to form coordination compounds?
Zinc can be coated on iron to produce galvanized iron but the reverse is not possible. It is because
Which is the most suitable reagent among the following to distinguish compound $(iii)$ from rest of the compounds

$(i)$ $C{H_3} - C \equiv C - C{H_3}$

$(ii)$ $C{H_3} - C{H_2} - C{H_2} - C{H_3}$

$(iii)$ $C{H_3} - C{H_2} - C \equiv CH$

$(iv)$ $C{H_3} - CH = C{H_2}$

The $OH$ group of an alcohol or the $ - COOH$ group of a carboxylic acid can be replaced by $ - Cl$ using
$C{{H}_{3}}-C\equiv C-C{{H}_{3}}\xrightarrow{Cold\,\,KMn{{O}_{4}}}(A)$

Product $(A)$ is

Consider following statements

$(a)$ $R_2SiO$ is repeating unit of linear silicones

$(b)$ $R$ $SiCl_3$ on hydrolysis followed by dehydration gives linear silicones

$(c)$ Silicones can be used as heat insulator

$(d)$ Silica is soluble in $HF$

The correct statement$(s)$ is/are