PUC Science 2nd PUC Class 12 - Karnataka Board PUC Question Bank Solutions for Chemistry

Predict the major product of acid catalysed dehydration of 1-methylcyclohexanol.

Predict the major product of acid catalysed dehydration of butan-1-ol.

What is meant by hydroboration-oxidation reaction? Illustrate it with an example.

Write the mechanism of hydration of ethene to yield ethanol.

Show how will you synthesize 1-phenylethanol from a suitable alkene.

How is the following conversion carried out?

\[\ce{Propene -> Propan-2-ol}\]

How is the following conversion carried out?

\[\ce{Benzyl chloride -> Benzyl alcohol}\]

How is the following conversion carried out?

\[\ce{Ethyl magnesium chloride -> Propan-1-ol}\]

How is the following conversion carried out?

\[\ce{Methyl magnesium bromide → 2-Methylpropan-2-ol}\]

Name the reagent used in the following reaction:

Dehydration of propan-2-ol to propene.

Name the reagent used in the following reaction:

Butan-2-one to butan-2-ol.

Show how you would synthesise the following alcohol from an appropriate alkene?

Show how you would synthesise the following alcohol from an appropriate alkene?

Show how you would synthesise the following alcohol from an appropriate alkene?

Why is sulphuric acid not used during the reaction of alcohols with KI?

Among the isomeric alkanes of molecular formula C₅H₁₂, identify the one that on photochemical chlorination yields a single monochloride.

Draw the structure of major monohalo products in the following reaction:

\[\ce{CH3CH2Br + NaI ->}\]

A hydrocarbon C₅H₁₀ does not react with chlorine in dark but gives a single monochloro compound C₅H₉Cl in bright sunlight. Identify the hydrocarbon.

Write the equation for the preparation of 1-iodobutane from 1-butanol.