give some scientific question
Answers
hi frnd
1. Who is honored as Father of Modern Chemistry?
Antoine Lavoisier
2. Who invented periodic table?
Dmitri Mendeleev
3. Which is the most abundant gas in the earth's atmosphere?
Nitrogen (78.08%)
4. Which gas evolved from paddy fields and marshes?
Methane
5. Which toxic element present in automobile exhausts?
Lead
6. Which gases cause acid rain?
Sulphur dioxide, Nitrogen oxides
7. Which metal is used in the making of microchips?
Silicon
8. What is the toxicity caused by silicon called?
Silicosis
9. Which polymer is used to manufacture electric switches, computer disks etc.?
Bakelite
10. With which polymer, the cabinets of radio and TV made of?
Polystyrene
11. Which chemical is used to make rain coats?
Poly Vinyl Chloride(PVC)
12. Which type of plastics can be recycled?
Thermoplastics
13. What is the name given to plastics that cannot be recycled?
Thermosetting plastics
14. Which element is a liquid at ordinary temperature?
Mercury
15. What is the chemical name of baking soda?
Sodium bicarbonate
hope this helps you
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