Give the equations of reactions for the preparation of phenol from cumene.
To prepare phenol,cumene is first oxidized in the presence of air of cumene hydro-peroxide.
Then,cumene hydroxide is treated with dilute acid to prepare phenol and acetone as by-products.
Write the IUPAC name of the product formed in the Reimer-Tiemann reaction.
Arrange the following compounds in increasing order of their boiling points:
Two batteries of emf's \(3V \& 6V\) and internal resistances 0.2 Ω \(\&\) 0.4 Ω are connected in parallel. This combination is connected to a 4 Ω resistor. Find:
(i) the equivalent emf of the combination
(ii) the equivalent internal resistance of the combination
(iii) the current drawn from the combination