The hyperconjugative stabilities of tert-butyl cation and 2-butene, respectively, are due to

Methylene blue, from its aqueous solution, is adsorbed on activated charcoal at 25^oC. For this process, the correct statement is

Benzene and naphthalene form an ideal solution at room temperature. For this process, the true statement(s) is(are)

Sulphide ores are common for the metals