MEDIUM
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What exactly is the function of salt?

Important Questions on Role of Substances in Environment

MEDIUM
What are some applications for common salt?
EASY
The salt used in the manufacture of inks, most notably iron gall ink, which was used during the Middle Ages until the end of the eighteenth century. 
MEDIUM

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  

 

EASY
Silver nitrate can act as an antiseptic.
MEDIUM
Blue vitriol is used as a herbicide and a fungicide.
MEDIUM
Salt is used as a preservative in pickles.
MEDIUM
What are the uses of silver nitrate in everyday life?
EASY
Silver nitrate is used to check for the presence of _____ ions.
MEDIUM

Match column I and column II and select the correct option from the given codes.

Column I
(Salts)

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
EASY
Ferrous sulphate is used to make the pH of soil high.
EASY
Give one use of ferrous sulphate.
EASY
Gypsum is used as a building material that is used as a protective coating on walls and ceilings.
MEDIUM
Common salt is used in the manufacture of soap.
MEDIUM

Which constituent is mostly present in our body fluid?

EASY

Write the quadrants in which the following points lie:

-4,7

MEDIUM
Baking soda is used in preparation of cake.
MEDIUM

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

EASY
Ferrous sulphate can be used to treat iron deficiency.