Question

by burning a peice of paper,a wooden peice,a wet cloth and a iron rod ​

Answer 1

Answer:

Explanation:

1. When paper is burnt , it undergoes chemical change by giving out new product in the form of ash and heat.

2. When wooden piece is burnt , it undergoes chemical change by giving out heat , light energy, ash of wood and Co2.

3. Wet cloth will not burn as it has water content.

4. Iron Rod will not get burn but when heated at high temperature it emits different colour like red, orange and blue colour in heated rod and finally it melts.

Conclusion:

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Wood and paper are considered as combustible materials.

Iron rod and wet cloth are non combustible materials.

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