(i) Arrange the following in order of their increasing boling point. H_(2)O,OH^(-),CH_(3)OH,CH_(3)O^(-) (ii) Arrange the following in order of their increasing boiling point : n-butane, ethanol, water, propane. (iii) Arrange the following in order of their increasing boiling point : n-butan, n-butanol,n-butyl chloride,isobutane. (iv) Arrange the primary, secondary and tertiary alcohols into decreasing order of reactivity towards sodium. (v) Arrange the primary, secondary and tertiary alcohols into decreasing order of acidity . (vi) Arrange the following in order of their decreasing boiling point : pentan-1-ol,2-methyl butan-2-ol,3-methyl butan-2-ol. (vii) Arrange the following in decreasing order of rate of dehydration with conc. H_(2)SO_(2) : CH_(3)CH_(2)CH(OH)CH_(2)CH_(2)CH_(3)(A) (CH_(3))_(2)C(OH)CH_(2)CH_(2)CH_(3)(B) (CH_(3))_(2)C(OH)CH(CH_(3))_(2)( C) CH_(3)CH_(2)CH(OH)CH(CH_(3))_(2)(D) CH_(3)CH_(2)CH_(2)CH_(2)CH_(2)CH_(2)CH_(2)(E )