Home
Class 9
CHEMISTRY
Which of the following are not compounds...

Which of the following are not compounds?
(a) Chlorine gas (b) Potassium chloride (c) Iron (d) Iron sulphide (e) Aluminium (f) Iodine (g) Carbon (h) Carbon monoxide (i) Sulphur powder

Text Solution

Verified by Experts

These are not compounds
(a) Chlorine gas `" "` (c) Iron
(e) Aluminium`" "` (f) Iodine
(g) Carbon`" "` (i) Sulphur powder
Promotional Banner

Topper's Solved these Questions

  • ATOMS AND MOLECULES

    NCERT EXEMPLAR|Exercise Atoms And Molecules|48 Videos

  • MATTER IN OUR SURROUNDINGS

    NCERT EXEMPLAR|Exercise Matter In Our Surroundings|27 Videos

Similar Questions

Explore conceptually related problems

Which of the following are not compounds ? (a) Bromine gas (b) sodium chloride (c ) Magnesium (d) Iron sulphide (e) Aluminium (f) Silver (g) Carbon (h) Carbon dioxide (i) Sulphur powder.

Which of the following compounds are administered as antacids : (a) Sodium carbonate (b) Sodium hydrogen carbonate (c ) Aluminium carbonate (d) Magnesium hydroxide

Write the chemical formulae of the following. (a) Magnesium chloride (b) Calcium oxide (c) Copper nitrate (d) Aluminium chloride (e) Calcium carbonate.

Which of the following materials fall in the category of a pure substance ? (a) Ice (b) Milk (c ) Iron (d) Hydrochloric acid (e ) Calcium oxide (f) Mercury (g) Brick (h) Wood (i) Air.

Write the balanced chemical equations for the following reactions : (i) "Hydrogen + Chlorine " to " Hydrogen chloride" (ii) "Magnesium oxide + Carbon " to " Magnesium + Carbon monoxide" (iii) "Phosphorus pentachloride + Water " to " Phosphoric acid + Hydrogen chloride" (iv) "Sulphur dioxide + Oxygen " to " Sulphur trioxide" (v) "Sodium + Water " to " Sodium hydroxide + Hydrogen" .

Classify the following into elements, compounds and mixtures. (a) Sodium (b) Soil (c ) Sugar solution (d) Silver (e ) Calcium carbonate (f) Tin (g) Silicon (h) Coal (i) Air (j) Soap (k) Methane (l) Carbon dioxide (m) Blood

Write the chemical formulae of the following: (a)Magnesium chloride (b)Calcium oxide (c )Sodium sulphide (d)Aluminium phosphate (e)potassium chloride (f)Calcium carbonate.

Give the formulae of the compounds that will be formed from the following sets of elements. (a) Calcium and fluorine (b) Magnesium and oxygen (c )Sodium and sulphur (d) Carbon and chlorine (e )Carbon and sulphur (f) Nitrogen and hydrogen.

NCERT EXEMPLAR-IS MATTER AROUND US PURE-Is Matter Around Us Pure
  1. An element is sonorous and highly ductile. Under which category would ...

    Text Solution

    |

  2. Give an example each for the mixture having the following characterist...

    Text Solution

    |

  3. Fill in the blanks. (a) A colloid is a ……… mixture and its component...

    Text Solution

    |

  4. Sucrose (sugar) crystals obtained from sugarcane and beetroot are mixe...

    Text Solution

    |

  5. Give some examples of Tyndall effect observed in your surroundings?

    Text Solution

    |

  6. Can we separate alcohol dissolved in water by using a separating funne...

    Text Solution

    |

  7. On heating calcium carbonate gets converted into calcium oxide and car...

    Text Solution

    |

  8. Non-metals are usually poor conductors of heat and electricity. They a...

    Text Solution

    |

  9. Classify the substances given in Figure into elements and compounds.

    Text Solution

    |

  10. Which of the following are not compounds? (a) Chlorine gas (b) Pota...

    Text Solution

    |

  11. Fractional distillation is suitable for separation of miscible liquids...

    Text Solution

    |

  12. (a) Under which category of mixtures will you classify alloys and why?...

    Text Solution

    |

  13. Iron filings and sulphur were mixed together and divided into two part...

    Text Solution

    |

  14. A child wanted to separate the mixture of dyes constituting a sample o...

    Text Solution

    |

  15. A group of students took an old shoe box and covered it with a black p...

    Text Solution

    |

  16. Classify each of the following, as a physical or a chemical change. Gi...

    Text Solution

    |

  17. During an experiment the students were asked to prepare a 10% (mass/ma...

    Text Solution

    |

  18. You are provided with a mixture containing sand, iron filings, ammoniu...

    Text Solution

    |

  19. Arun has prepared 0.01% (by mass) solution of sodium chloride in water...

    Text Solution

    |

  20. Calculate the mass of sodium sulphate required to prepare its 20% (mas...

    Text Solution

    |