Home
Class 11
CHEMISTRY
Water cannot be used to extinguish petro...

Water cannot be used to extinguish petrol fires. Why ?

Text Solution

Verified by Experts

Water is used to extinguish most fires because it lowers the temperature of burining material. However, in case of petrol fires, petrol being lighter than water, floats over water and hence fire spreads instead of being extinguished.
Promotional Banner

Topper's Solved these Questions

  • HYDROGEN

    SUBHASH PUBLICATION|Exercise Three marks questions and answers|15 Videos

  • HYDROGEN

    SUBHASH PUBLICATION|Exercise Three marks questions and answers|15 Videos

  • HYDROCARBONS

    SUBHASH PUBLICATION|Exercise THREE MARKS QUESTIONS AND ANSWERS|25 Videos

  • P-BLOCK ELEMENTS

    SUBHASH PUBLICATION|Exercise Three mark questions and answers|24 Videos

Similar Questions

Explore conceptually related problems

The ac cannot be used for :

Voltameter cannot be used to measure :

Chlorine cannot be used :

Hydrogen being a highly inflammable gas oxygen being a supporter of combustion, yet water up of hydrogen and oxygen is used to extinguish fire why ?

A solar water heater cannot be used to get hot water on

Which of the following reagents cannot be used to distinguish between pebtanal and 2- pentanone ?

SUBHASH PUBLICATION-HYDROGEN-Two marks questions and answers
  1. How to prepare hydrogen peroxide from BaO(2)?

    Text Solution

    |

  2. Dilute solution of hydrogen peroxide cannot be heated strongly for its...

    Text Solution

    |

  3. Can sodium bicarbonate make water hard ?

    Text Solution

    |

  4. Which of the hydrogen or deuterium undergoes reactions more rapidly an...

    Text Solution

    |

  5. Can we remove completely temporary hardness due to Mg(HCO(3))(2) by bo...

    Text Solution

    |

  6. H(2)O(2) acts as on oxidizing agent as well as reducing agent Why ?

    Text Solution

    |

  7. Why do lakes freeze from top towards bottom ?

    Text Solution

    |

  8. A mixture of H(2)O(2) and hydrzine with copper (II) is used as a rocke...

    Text Solution

    |

  9. Water cannot be used to extinguish petrol fires. Why ?

    Text Solution

    |

  10. What is the volume strenth of H(2)O(2)?

    Text Solution

    |

  11. Hard water is softened before using in boilers. Expain.

    Text Solution

    |

  12. What are the uses of Heavy Water ?

    Text Solution

    |

  13. Show the oxidising property of H(2)O(2) with PbS.

    Text Solution

    |

  14. Discuss the position of hydrogen in the periodic table is not justifie...

    Text Solution

    |

  15. Explain property of H(2)O(2)"with"MnO(4)^(-) in acidic medium.

    Text Solution

    |

  16. How does H(2)O(2) reduces iodine in reducing property ?

    Text Solution

    |

  17. Describe the structure of common from of ice.

    Text Solution

    |

  18. Distinguish clearly between (a) hard and soft water, (b) temporary har...

    Text Solution

    |

  19. What is the structure of H(2)O(2)? Draw a shematic diagram indicating ...

    Text Solution

    |

  20. Sea water can't be used in boiler. Explain given chemical equations.

    Text Solution

    |