2 Which fraction of petroleum is used as fuel for cars? A Kerosene B Diesel C Petrol D Lubricating oil
3 Which acid is widely used in food preservation? A Methanoic acid B Ethanoic acid C Sulphuric acid D Nitric acid
5 Which alcohol burns with a blue flame? A Methanol B Ethanol C Both methanol and ethanol D Propanol only
13 Alcohols are used in pharmaceutical industry to make: A Fuels only B Medicines and syrups C Fertilizers D Explosives
18 Why are carboxylic acids acidic in nature? A Due to presence of –OH group only B Due to release of H+ from –COOH group C Due to presence of carbonyl group D Due to high molecular mass
20 Which carboxylic acid is present in ant stings? A Ethanoic acid B Methanoic acid C Citric acid D Oxalic acid