Question : Which German chemist used the technique of preparing hydrocarbons by electrolysis of solutions of salts of fatty acids?

Option 1: Cecilia Payne

Option 2: Marcellin Berthelot

Option 3: Giulio Natta

Option 4: Hermann Kolbe

Question : Petroleum is a mixture of 

Option 1: elements

Option 2: hydrocarbons 

Option 3: Polymers 

Option 4: salts

Question : Candle is a mixture of 

Option 1: Paraffin wax and stearic acid

Option 2: Beeswax and stearic acid

Option 3: Higher fatty acids and stearic acid

Option 4: Beeswax and paraffin wax

Question : The advantge of detergents over soaps is :

Option 1: Detergents are soluble in water

Option 2: Detergents could not give much lather

Option 3: Dtergents give lather even with  hard water

Option 4: Soapes give lather with only soft water

Question : Baking soda is ________________.

Option 1: sodium carbonate

Option 2: sodium sulphate

Option 3: sodium hydrogen carbonate

Option 4: sodium hydroxide