HSC Science (Electronics) 12th Standard Board Exam - Maharashtra State Board Important Questions for Chemistry

Which of the following is the product of reaction of ethane nitrile with Grignard reagent followed by acid hydrolysis?

Ketones CANNOT be converted into carboxylic acid using _____________

The following reactants CANNOT be converted into carboxylic acid?

Write the number of products when a mixture of ethanal and propanal is reacted with dilute alkali?

What is the action of Grignard reagent on benzonitrile?

Carboxylic acids have higher boiling points than those of ethers. Give reason.

What is the action of following on proponal?

Hydroxyl amine

What is the action of following on proponal?

Hydrazine

What is the action of following reagents on ethanoic acid?

SOCl₂/heat

What is the action of following reagents on ethanoic acid?

sodalime/heat

What is the action of following reagents on ethanoic acid?

P₂O₅/heat

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