Question

Why are pickles stored in plastic containers or glass bottles and not in Aluminium containers?
1. Because when placed in glass & plastic containers we can see what is inside. 
2. Plastic & glass containers are light and easy to handle.
3. Plastic & glass containers can be recycled after use.
4. Because Aluminium metal reacts chemically with the acid present in pickles. 

Answer 1

Correct Answer - Option 4 : Because Aluminium metal reacts chemically with the acid present in pickles. 

The Correct Answer is Because Aluminium metal reacts chemically with the acid present in pickles.

 

• Pickles contain acetic acid (in the form of vinegar).
• If pickles are stored in metal containers made up of iron or copper, the acids can react with the metal.
• This may lead to the formation of some health-hazardous compounds.
• Hence pickles should not be stored in a metal container.

  

Properties of acids

• Acids are those chemical substances that have a sour taste.
• Acids change the color of blue litmus to red.
• When an acid reacts with a metal, then salt and hydrogen gas are formed.
• That is Metal + Acid ---> Salt + Hydrogen gas.