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Q:

असंतृप्त कार्बन योगिकों से _ ज्बाला निकलेगी |

  • 1
    नीली ज्बाला
  • 2
    अस्वच्छ
  • 3
    स्वच्छ
  • 4
    काले धुएॅॅ वाली पीली ज्बाला
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Answer : 4. "काले धुएॅॅ वाली पीली ज्बाला"
Explanation :

Saturated hydrocarbons burn with a blue flame and unsaturated hydrocarbons burn with a yellow sooty flame.

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