Home
Class 9
CHEMISTRY
Stong odour in swimming pool is due to …...

Stong odour in swimming pool is due to ………… .

A

chlorine gas

B

impurities

C

calcium carbonate

D

calcium hydroxide

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • Substances in Common Use

    CHETANA PUBLICATION|Exercise EXERCISE|3 Videos

  • Substances in Common Use

    CHETANA PUBLICATION|Exercise EXERCISE|3 Videos

  • Carbon - An Important Element

    CHETANA PUBLICATION|Exercise EXAMPLE|46 Videos

Similar Questions

Explore conceptually related problems

A person swimming at the bottom of a swimming pool looks up to the diving board. The board.

Answer the following questions Water in a swimming pool or water tank appears shallower than its depth . Why ?

A man stnading in a swimming pool looks at a stone lying at the bottom. The depth of the swimming pool is h. At what distance from the surface of water is the image of the stone formed? (Line of vision is normal, Refractive index of water is n)

The Brownian motion is due to

Name the phenomenon due to which a swimming pool appears less deep than it really is.

The bottom of a swimming pool appears to be less deep than actual because of _____________.

Solve the following problems using two variables: Two taps A and B can together filla swimming pool in 15 days . Taps A and B are kept open for 12 days and then tap B is closed. It takes another 8 days for the pool to be filled . How many days each tap require to fill the pool?

Give scientific reasons: It is easy to swim in a swimming pool than in a river.

The production of echo is due to

CHETANA PUBLICATION-Substances in Common Use-EXERICSE
  1. Melting point of NaCl

    Text Solution

    |

  2. Rock salt is ………..in colour.

    Text Solution

    |

  3. Stong odour in swimming pool is due to ………… .

    Text Solution

    |

  4. Molecular formula of sodium bicarbonate is ………… .

    Text Solution

    |

  5. Soap is …………..in nature.

    Text Solution

    |

  6. Molecualr formula for Magnesium bromide is. ………… .

    Text Solution

    |

  7. The number of molecules of water of crystallization in washing soda is...

    Text Solution

    |

  8. The chemical name of baking soda is ………..

    Text Solution

    |

  9. …………..is used in treatment of hyperthyroidism.

    Text Solution

    |

  10. The chemical name of Teflon is……….. .

    Text Solution

    |

  11. 25% of NaCl is known as ………… .

    Text Solution

    |

  12. …………..gas os released when bleaching powder is added to water.

    Text Solution

    |

  13. Washing soda is ………….as it absorbs moisture if left exposed to air.

    Text Solution

    |

  14. …………is used to make had water soft.

    Text Solution

    |

  15. Molecular formula for Alum is ……….. .

    Text Solution

    |

  16. ………..is used in blood test for diagnosing anaemia.

    Text Solution

    |

  17. High grade of ……………..and …………..are used as raw material to manufacture...

    Text Solution

    |

  18. Pickels, jams and sauce contain small quantities of ……….and ………. .

    Text Solution

    |

  19. Excessive consumption of foods with added food colours leads to diseas...

    Text Solution

    |

  20. Melting point of Teflon is …………… .

    Text Solution

    |