HSC Science कक्षा १२ - Tamil Nadu Board of Secondary Education Question Bank Solutions

How will you convert acetylene into n-butyl alcohol?

3, 3-dimethyl butane-2-ol on treatment with conc. H₂SO₄ to give tetramethyl ethylene as a major product. Suggest a suitable mechanism.

The IUPAC name of

How is propanoic acid is prepared to start from alcohol?

How is propanoic acid is prepared to start from an alkyl halide?

How is propanoic acid is prepared to start from an alkene?

An alkene (A) on ozonolysis gives propanone and aldehyde (B). When (B) is oxidised (C) is obtained. (C) is treated with Br₂/P gives (D) which on hydrolysis gives (E). When propanone is treated with HCN followed by hydrolysis gives (E). Identify A, B, C, D and E.

Oxidation of ketones involves carbon-carbon bond cleavage. Name the product(s) is/are formed on oxidising 2, 5-dimethyl hexan-3-one using a strong oxidising agent.

Which of the following reagent can be used to convert nitrobenzene to aniline?

The method by which aniline cannot be prepared is ____________.

Which one of the following will not undergo Hofmann bromamide reaction?

\[\ce{CH3CH2Br ->[aq NaOH][\Delta] A ->[KMnO4/H^+][\Delta] B ->[NH3][\Delta] C ->[Br2/NaOH] D}\] ‘D’ is:

Which one of the following nitro compounds does not react with nitrous acid?

Which of the following reaction is not correct.

‘A’ is:

Nitrobenzene on reaction with at 80-100°C forms which one of the following products?

C₅H₁₃N reacts with HNO₂ to give an optically active compound – The compound is ____________.

Secondary nitro alkanes react with nitrous acid to form ____________.

When is reduced with Sn/HCl the pair of compounds formed are ____________.

Among the following, the reaction that proceeds through an electrophilic substitution is: