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Who proposed first atomic theory ?

  • E.Rutherford
  • De Broglie
  • John Dalton
  • D.I.Mendeleef

Answer: Option C

Similar Questions :

1. Rare gases are

  • mono atomic
  • di atomic
  • tri atomic
  • None of above

Answer: Option A

Explanation:

Rare gases are mono atomic.

2. The metallurgical process in which a metal is obtained in a fused state is called ?

  • roasting
  • calcinations
  • smelting
  • froth floatation

Answer: Option C

3. The ore which is found in abundance in India is

  • monazite
  • bauxite
  • magnetite
  • fluorspar

Answer: Option A

4. All noble gases are ?

  • colourless
  • colourless
  • colourless and odourless
  • colourless and but have odour

Answer: Option C

5. Natural rubber is a polymer derived from ?

  • ethylene
  • propylene
  • isoprene
  • butadiene

Answer: Option C

Read more from - Chemistry Questions Answers
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