HSC Science (Computer Science) इयत्ता १२ वी - Maharashtra State Board Important Questions

Write reactions for the following conversions.

Benzene to Benzaldehyde

Explain haloform reaction with suitable example.

Draw structure of salicylaldehyde.

Write reaction for preparation of acetophenone from benzoyl chloride.

Write reactions for the action of the following reagents on p-chlorobenzaldehyde.

Ethane-1,2-diol in presence of dry HCl.

How will you prepare acetic anhydride from acetic acid?

Identify A and B from the following reaction:

\[\begin{array}{cc}
\ce{CH3}\phantom{.................}\\
|\phantom{....................}\\
\phantom{}\ce{2CH3 - C = O ->[Ba(OH)2] A ->[Δ] B + H2O}
\end{array}\]

Write structure of adipic acid.

Write preparation of acetic acid from:

acetyl chloride

Write preparation of acetic acid from:

dry ice

How ketones are prepared from nitriles?

How acetone is converted into propane.

How propanal is converted into propane.

Ozonolysis of 2, 3 dimethyl but-2-ene, followed by decomposition by Zn dust and water gives ______.

Explain Aldol condensation of ethanal.

The product of hydrolysis of propyne in the presence of 1% \[\ce{HgSO4}\] and 40% \[\ce{H2SO4}\] is ______.

Write preparation of propanone by using ethanoyl chloride and dimethyl cadmium.

What are ketones? 

How are ketones classified?