Advertisements
Advertisements
प्रश्न
Identify A, B, C in the following reaction sequence:
\[\ce{CH3 - CH = CH2 ->[Br2/CCl4][room temperature] A ->[Zn] B ->[dil. alkaline][KMnO4] C}\]
Advertisements
उत्तर
\[\begin{array}{cc}
\ce{H\phantom{....}H\phantom{...............}}\\
|\phantom{.....}|\phantom{...............}\\
\ce{CH3\underset{Propene}{- CH =} CH2 ->[Br2/CCl4][room temperature] CH3 - C - C - H ->[Zn] CH3 \underset{\overset{Propene}{(B)}}{- CH = C}H2 ->[dil.alkaline][KMnO4] CH3 - CH - CH2}\\
\phantom{........................................}|\phantom{.....}|\phantom{..............................................}|\phantom{......}|\phantom{..}\\
\ce{\phantom{.......................................}\underset{\overset{1,2-Dibromopropane}{(A)}}{Br\phantom{...} Br}\phantom{...........................................}\underset{\overset{Propane-1,2-diol}{(C)}}{OH\phantom{...}OH}}\end{array}\]
APPEARS IN
संबंधित प्रश्न
Predict the possible product of the following reaction.
sulphonation of chlorobenzene
Predict the possible product of the following reaction.
bromination of phenol
Identify the main product of the reaction:
\[\ce{H - C ≡ C - H + H - O ->[{40%} H2SO4][{1%} HgSO4]}\] _____.
Identify giving reason whether the following compound is aromatic or not.

Read the following reaction and answer the questions given below:

- Write the name of the reaction.
- Identify the electrophile in it.
- How is this electrophile generated?
Some meta-directing substituents in aromatic substitution are given. Which one is most deactivating?
Which of the following is aliphatic saturated hydrocarbon?
2 – butyne on chlorination gives ______.
Give IUPAC name for the following compound.
Ethyl isopropyl acetylene
Give IUPAC name for the following compound.
\[\ce{CH ≡ C – C ≡ C – C ≡ CH}\]
Write short notes on ortho, para directors in aromatic electrophilic substitution reactions.
Suggest a simple chemical test to distinguish propane and propene.
How does Huckel rule help to decide the aromatic character of a compound?
What happens when ethylene is passed through cold dilute alkaline potassium permanganate.
Write the structure of the following alkanes.
5 – (1, 2 – Dimethyl propyl) – 2 – methylnonane
How will you prepare propane from a sodium salt of fatty acid?
Complete the following:
\[\begin{array}{cc}
\ce{CH2 - CH2 ->[Zn/C2H5OH]}\\
|\phantom{.......}|\phantom{..............}\\
\ce{Br}\phantom{.....}\ce{Br}\phantom{..............}
\end{array}\]
Which of the following is NOT a hetero-aromatic compound?
Which among the following compounds has highest boiling point?
The alkane formed on heating sodium butanoate with sodalime is ______.
Which of the following molecules has shortest C - C bond length?
Which of the following compounds on bromination yields
?
Read the following reaction and answer the questions given below.
\[\begin{array}{cc}
\phantom{..............................}\ce{CH3}\\
\phantom{............................}|\\
\ce{CH3 - C = CH2 + HBr ->[benzoyl][peroxide] CH3 - CH - CH2Br}\\
|\phantom{....................................}\\
\ce{CH_3}\phantom{.................................}
\end{array}\]
- Write the IUPAC name of the product.
- State the rule that governs the formation of this product.
Read the following reaction and answer the questions given below.
\[\begin{array}{cc}
\phantom{..............................}\ce{CH3}\\
\phantom{...........................}|\\
\ce{CH3 - C = CH2 + HBr ->[benzoyl][peroxide] CH3 - CH - CH2Br}\\
|\phantom{....................................}\\
\ce{CH3}\phantom{.................................}
\end{array}\]
- Write the IUPAC name of the product.
- State the rule that governs the formation of this product.
Identify ortho and para-directing groups from the following:
\[\ce{\underset{I}{–CHO},\underset{II}{–NHCOCH3},\underset{III}{–OCH3},\underset{IV}{–SO3H}}\]
Which of the following is most stable?
