There is a vacuum in an empty glass .

ICSE-AIR-EXERCISE (OBJECTIVE QUESTIONS) (WRITE .T. FOR TRUE AND .F. FOR FALSE FOR THE FOLLOWING STATEMENTS)

1. The oxygen -to- nitrogen proportion in air is 1:5.

   Text Solution

   |

   Play
2. There is a vacuum in an empty glass .

   Text Solution

   |

   Playing Now
3. Explain, why carbon dioxide turns lime water milky .

   Text Solution

   |

   Play
4. Anhydrous copper sulphate (white ) turns blue with water .

   Text Solution

   |

   Play
5. Nitrogen is combustile but not a supporter of combustion .

   Text Solution

   |

   Play
6. The dust present in air helps the formation of clouds .

   Text Solution

   |

   Play