09 Fill is the blanks
1. name name any two polyester fibres___ and___
2. electrical switches are made up of____
3. thermocol is made from ____plastic material.
4. the presence of ____and ____ are necessary for iron to rust.
5. ___ metal can be cut by knife.
6. metal react with dilute acid to form___ and ____.
Answers
Answered by
1
Answer:
poly ester
thermoset plastics
don't know
oxygen water
sodium
don't know
Answered by
1
Answer:
1. Terylene
2. Bakelite
3. polystyrene
4. water and oxygen
5. Sodium
6. salt and hydrogen gas
Explanation:
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