Alcohols react with active metals e.g. Na, K etc. to give corresponding alkoxides. Write down the decreasing order of reactivity of sodium metal towards primary, secondary and tertiary alcohols.

Write the reaction of primary , secondary and tertiary alcohols when passed through copper tube at 573 K .

Based on the following information arrange four metals A,B,C and D in order of decreasing ability to act as reducing agents : (I) Only A,B, and C react with 1M HCl to give H_(2)(g) (II) When C is added to solutions of the other metal ions, metallic B and D are formed (III) Metal C dows not reduced A^(n+)