HSC Science Class 12 - Tamil Nadu Board of Secondary Education Question Bank Solutions

Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.

How is the following conversion effected propanal into butanone?

How is the following conversion effected Hex-3-yne into hexan-3-one?

How is the following conversion effected phenyl methanal into benzoic acid?

How is the following conversion effected phenyl methanal into benzoin?

Complete the following reaction.

\[\begin{array}{cc}
\ce{CH3 - CH2 - CH2 - C - CH3 ->[HO - CH2 - CH2 - CH2 - OH][dry HCl] ?}\\
||\phantom{.........}\\
\ce{O}\phantom{.........}
\end{array}\]

Identify A, B and C.

How will you prepare acetic anhydride from acetic acid?

How will you prepare ethyl acetate from methyl acetate?

How will you prepare acetamide from methyl cyanide?

How will you prepare lactic acid from ethanol?

How will you prepare acetophenone from acetyl chloride?

How will you prepare ethane from sodium acetate?

How will you prepare malachite green from benzaldehyde?

How will you prepare cinnamic acid from benzaldehyde?

How will you prepare acetaldehyde from ethyne?

Which one of the is not a surfactant?

Which one of the is not a surfactant?

Write the structure of the major product of the aldol condensation of benzaldehyde with acetone.

A carbonyl compound A having molecular formula C₅H₁₀O forms crystalline precipitate with sodium bisulphate and gives positive iodoform test. A does not reduce Fehling solution. Identify A.