Advertisements
Advertisements
प्रश्न
Identify the main product of the reaction:
\[\ce{H - C ≡ C - H + H - O ->[{40%} H2SO4][{1%} HgSO4]}\] _____.
Advertisements
उत्तर
Alkynes react with water in the presence of 40% sulphuric acid and 1% mercuric sulphate to form aldehydes or ketones i.e. carbonyl compounds.

Notes
In the textbook question is wrong.
APPEARS IN
संबंधित प्रश्न
Write the balanced chemical reaction to get benzene from Phenol.
Identify the main product of the reaction:
\[\ce{HC ≡ C - CH3 ->[H2][Pd-C/quinoline]}\] _______.
Identify giving reason whether the following compound is aromatic or not.

Name two reagents used for acylation of benzene.
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?
Identify the compound (A) in the following reaction

Which of the following compounds will not undergo Friedal – crafts reaction easily ? (NEET)
An alkane is obtained by decarboxylation of sodium propionate. Same alkane can be prepared by ______.
Identify the compound 'Z' in the following reaction
\[\ce{C2H6O ->[Al2O3][623 K] X ->[O3] Y ->[Zn/H2O] (Z)}\]
Write short notes on ortho, para directors in aromatic electrophilic substitution reactions.
Write the chemical equations for combustion of propane.
How does Huckel rule help to decide the aromatic character of a compound?
Suggest the route for the preparation of the following from benzene.
4 – chlorotoluene
Suggest the route for the preparation of the following from benzene.
m - dinitro benzene
How will you convert ethyl chloride into ethane?
Write the structure of the following alkanes.
2, 3 – Dimethyl – 6 – (2 – methyl propyl) decane
When acetylene is passed through red hot iron tube at 873 K, ____________ is/are obtained as product/s.
Which of the following is NOT a hetero-aromatic compound?
A compound with molecular formula C4H4O has all the four carbon atom and the oxygen atom in the ring. It also has two carbon-carbon double bonds. The compound is ____________.
Phenol on distillation with zinc dust gives ____________.
Direct bromination of benzene with excess reagent results in the formation of ____________.
Which of the following compounds on bromination yields
?
Arenes on treatments with chlorine in the presence of ferric chloride as a catalyst undergo what type of reaction?
Identify the X and Y in the following reactions.

Read the following reaction and answer the questions given below.
\[\begin{array}{cc}
\phantom{..............................}\ce{CH3}\\
\phantom{...........................}|\\
\ce{CH3 - C = CH2 + HBr ->[Benzoyl][peroxide] H3C - CH - CH2Br}\\
|\phantom{....................................}\\
\ce{CH3}\phantom{.................................}
\end{array}\]
- Write the IUPAC name of the product.
- State the rule that governs the formation of this product.
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.
Which of the following statement is NOТ correct for aromatic compounds?
Identify ortho and para-directing groups from the following:
\[\ce{\underset{I}{–CHO},\underset{II}{–NHCOCH3},\underset{III}{–OCH3},\underset{IV}{–SO3H}}\]
