Q1. Oils on treating with hydrogen in the presence of palladium or nickel catalyst form fats. This is an example of:

Q2. Electrolysis of water is a decomposition the mol ratio of hydrogen and oxygen gas liberated during electrolysis of water is.

Q3. The compound obtained from the reaction of iron with steam is/are: 

Q4. Formula of Washing soda, Benching power and Plaster of Paris.

Question Nos. 5 to 6 consist of two statements - Assertion (A) and Reason (R). Answer these question by selecting the appropriate option given below:

(A) Both A and R are true, and R is the correct explanation of A.

(B) Both A and R are true, and R is not the correct explanation of A.

(C) A is true but R is false.

(D) A is false but R is true.

Q5. Assertion (A): Ammonia solution is an alkali.

       Reason (R): Ammonia solution turns blue litmus paper red.

Q6. Assertion (A): After white washing the walls, a shiny white finish on the walls is obtained after two to three days.

      Reason (R): Calcium oxide reacts with carbon dioxide to form calcium hydrogen carbonate which gives a shiny white finish.

(a)    Y₂