SAMPLE PAPER NO. 1 TIME : 2 HRS. 40 MARKS

SAMPLE PAPER NO. 1 TIME : 2 HRS. 40 MARKS

Question 1. (A) Solve the following questions. (Marks 5) 

1. Write proper answer in the square.

1. Write the electronic configuration of 13Al: .............
2. While a substance is transforming from a liquid state to the solid state, the latent heat in the substance ...........
3. Arrange the following metals in the increasing order of their activity. Copper, Silver, Aluminium, Iron