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Yellow colour of the flame indicates...

Yellow colour of the flame indicates

A

partial combustion

B

complete combustion

C

unburnt wax vapour

D

non-luminous zone

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The correct Answer is:
A
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S CHAND IIT JEE FOUNDATION-COMBUSTION AND FLAME -Question Bank-17
  1. Total amount of heat produced by a fuel having calorific value of 30 k...

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  2. Which one of the following is not a fossil fuel?

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  3. Yellow colour of the flame indicates

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  4. Substance having low ignition temperature is

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  5. When wood is used as fuel in chullahs, gaps are left in between the lo...

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  6. When water is poured over burning wood, the fire goes off. This is bec...

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  7. Which of the following statements is not true?

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  8. Match the points mentioned in column 'A' to the points mentioned in co...

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  9. Glass, metals, ceramics are the example of

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  10. Oxides of nitrogen and sulphur dissolve in rain water to produce

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  11. Explain why , we are advised not to sleep in a room having closed door...

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  12. Fire is extinguished by

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  13. Hydrogen gas has the highest calorific value, i.e., 150 kJ/kg, yet it ...

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  14. Which of the following statements is not true?

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  15. Charcoal does not produce a flame because

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  16. An electric spark is struck between two electrodes placed near each ot...

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  17. Identify the incorrect statement among the following:

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  18. Arrange the following fuels in increasing order of their calorific val...

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  19. In foam type fire-extinguisher what is responsible to put off fire?

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  20. The ignition temperature of white phosphorus is nearly equivalent to

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