Question

(b) When an ant stings a person, the solution of substance K is rubbed on the stung

area of the skin to get relief from the pain. The substance K is also used in kitchen for cooking purposes. Another substance L is sour in taste and contains an organic acid M. It is pungent smelling and is used as a preservative in foods. When a substance of K is mixed with L, then a change N takes place to produce bubbles of gas O.

(i) Identify K. (ii) What is substance L?

(iii) Name the acid M. (iv) What type of change is N?

(v)Name the gas O​

Answer 1

Explanation:

if K L and m shell of an atom are full then what would be the total number of electrons in the atom