Question

for rusting the presence of both oxygen and water, or watar vapour is required coat of the paint prevent district contact of iron with air and oxygen and thus prevent it from rusting

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Answer 1

Answer:

Fill in the blanks :-

1. The first artificially made fibre was ____

2. The non-stick coating on pans and other cooking utensirm of PVC is _______

4. ____ is used to make plumbing pi

Explanation: