
What exactly is the function of salt?
Important Questions on Role of Substances in Environment


How can salt be used in the following cases?
Problem | Use of common salt |
In your toothache | |
One day when you suffered suddenly from vomiting and diarrhoea | |
In your throat pain | |
A leech bites in your leg | |
Preservation of ripe tamarind | |
If a symptom like low blood pressure is found in someone |







Match column I and column II and select the correct option from the given codes.
Column I |
Column II (Uses) |
||
P | Baking Soda | (i) | In making fire-works |
Q | Nitre | (ii) | As a fungicide |
R | Blue vitriol | (iii) | In purification of water |
S | Phitkari | (iv) | In fire extinguishers |





Which constituent is mostly present in our body fluid?


Write the quadrants in which the following points lie:


_____ is used in the treatment of bone facture. (Gypsum / Plater of Paris)

