Consider the following statements: 1. Addition of salt to pure water increase the boiling point of water and decreases the freezing point of water. 2. When methyl alcohol is added to water boiling point of water decreases. Which of the above statements is/are correct?

Consider the following statements about mixture : 1. A substance can be separated into other kinds of matter by any physical process. 2. Dissolved sodium chloride can be separated from water by the p…

Consider the following statements: 1. Crystallization is the process of deriving crystals of pure substance from their solution. 2. A bonding between constituent atoms oг molecules takes place during…

Which of the following process/ processes release heat? (i) Condensation (ii) Vaporisation (iii) Freezing (iv) Melting Correct option is :

The evaporation of water increases under the following conditions :

Which one of the following methods can be used to separate anthracene from a mixture of salt and anthracene ?