Question : Aluminium salt commonly used to stop bleeding is:
Option 1: Aluminium nitrate
Option 2: Aluminium sulphate
Option 3: Aluminium chloride
Option 4: Potash alum
Correct Answer: Potash alum
Solution : The correct option is Potash alum.
It is also known as Aluminium Potassium Sulphate .
Chemical formula- KAI(SO 4 ) 2 .
Uses:
- It is applied after shaving as it stops bleeding.
- It is used as an astringent (causes contraction and shrinkage of tissue).
- It has anti-microbial properties.
- It is used in the leather tanning industry.