Rain water and sea water differ in their behaviour towards soap. Give the difference and establish the chemistry behind this.

i) Rain water and séa, water differ in their behaviour towards soap. Give the difference and establish the chemistry behind this. ii) A water boiler in a factory burst due to high interior pressure. It was reported that the incident was occured due to certain dissolved salt in water used, As a chemistry student how will you explain this?

Hydrogen finds application in the preparation of vanaspathi from vegetable oils. Give the chemistry behind this.

Give the difference between apomixis and polyembryony?

Give the different steps involved in metallurgy

Optical isomerism is a kind of streoisomerism in which isomers differ in their behaviour towards plane polarised light, What are enantiomers?

Optical isomerism is a kind of streoisomerism in which isomers differ in their behaviour towards plane polarised light, What is the cause of optical activity in organic compounds?

Optical isomerism is a kind of streoisomerism in which isomers differ in their behaviour towards plane polarised light,Write the structure of the isomers of C_4H_9Cl which is optically active.

Hard water does not give ready leather with soap. What is the reason for hardness?

How can you explain the behaviour of BCl_3 and CCl_4 towards water?

Take water in 4 different beakers and add a small piece of sodium,lead,iron and copper in each: Write the chemical equation between this metal and water.