Question : Ethanol containing 5% water is known as 

Option 1: rectified spirit

Option 2: denatured spirit

Option 3: methylated alcohol

Option 4: power alcohol

Question : Ethanol containing 5% water is known as :

Option 1: Dilute alcohol 

Option 2: Power alcohol

Option 3: Rectified spirit

Option 4: Absolute alcohol 

Question : Water is not effective in extinguish a fire cause by petrol because

Option 1: The flame is too hot for water to cool it down

Option 2: Water and petrol react chemically

Option 3: Water and petrol are miscible with each other

Option 4: Water and petrol are immiscible with each other and petrol which forms the upper layer  continues to burn

Question : Glycol is added to aviation gasoline because it 

Option 1: reduces evaporation of petrol

Option 2: increases efficiency of petrol

Option 3: prevents freezing of petrol

Option 4: reduces consumption of petrol

Question : Which of the following is used to remove rust stains on cloth ?

Option 1: Kerosene

Option 2: Lime

Option 3: Oxalic acid solution

Option 4: Petrol