Home
Class 10
CHEMISTRY
Tooth enamel is one of the hardest subst...

Tooth enamel is one of the hardest substances in our body. How does it damage due to eating chocolate and sweets? What should we do to prevent it?

Promotional Banner

Topper's Solved these Questions

  • ACID, BASES AND SALTS

    MODERN PUBLICATION|Exercise EXERCISE|433 Videos
  • CARBON AND ITS COMPOUNDS

    MODERN PUBLICATION|Exercise EXERCISE|410 Videos

Similar Questions

Explore conceptually related problems

What safety measures should we take to prevent damage caused by lighting?

What do you mean by acceleration due to gravity? How does it vary with height?

A colloidal solution is a type of mixture which consists of particles whose size varies between 1 and 1000 nanometres. In colloidal solution the particles are distributed evenly. During this process the particles do not settle down. This is one of the best know thing about colloidal solutions. Properties of colloids and their variation are a well-known area ever since the primitive age. The best example to prove their familiarity with us is that we know from very early times that coagulation of milk results in the formation of curd. Physical properties of colloids 1. The nature of the colloidal solution is heterogeneous i.e. unlike. These solutions dwell with two different phases : • Dispersed medium Dispersed phase. 2. Despite the fact that colloidal dispersions are unlike in description (nature), yet the dispersed fragments are not detectable by the human eye. This is due to the microscopic size of the particles in the solution. 3. The colour of the colloidal dispersion is determined by particles in the solution based on their size. The wavelengths of light that is absorbed will be longer ifthe size of the particle is large. 4. As a result of its size, the colloidal fragments can easily be passed through a traditional filter paper. However, these particles can be filtered by using membranes such as animal, cellophane, and ultrafilters. What are colloidal solution particle.

A colloidal solution is a type of mixture which consists of particles whose size varies between 1 and 1000 nanometres. In colloidal solution the particles are distributed evenly. During this process the particles do not settle down. This is one of the best know thing about colloidal solutions. Properties of colloids and their variation are a well-known area ever since the primitive age. The best example to prove their familiarity with us is that we know from very early times that coagulation of milk results in the formation of curd. Physical properties of colloids 1. The nature of the colloidal solution is heterogeneous i.e. unlike. These solutions dwell with two different phases : • Dispersed medium Dispersed phase. 2. Despite the fact that colloidal dispersions are unlike in description (nature), yet the dispersed fragments are not detectabJe by the human eye. This is due to the microscopic size of the particles in the solution. 3. The colour of the colloidal dispersion is determined by particles in the solution based on their size. The wavelengths of light that is absorbed will be longer ifthe size of the particle is large. 4. As a result of its size, the colloidal fragments can easily be passed through a traditional filter paper. However, these particles can be filtered by using membranes such as animal, cellophane, and ultrafilters. What type of phases of colloidal solutions ?

MODERN PUBLICATION-ACID, BASES AND SALTS-EXERCISE
  1. A piece of zinc metal is dropped in dilute solution of hydrochloric ac...

    Text Solution

    |

  2. Name the two main consituents of baking powder.

    Text Solution

    |

  3. Name the two main consituents of baking powder.

    Text Solution

    |

  4. Tooth enamel is one of the hardest substances in our body. How does it...

    Text Solution

    |

  5. What is the meant by water by crystallisation in a substance? How woul...

    Text Solution

    |

  6. Complete the following reactions: NaCl+CO2+NH3+H2Orarr……………+…………

    Text Solution

    |

  7. Compelte the following reactions: CaSO4. 2H2O rarr

    Text Solution

    |

  8. Compelte the following reactions: CaCO3+H2SO4(dil)rarr

    Text Solution

    |

  9. What is universal indicator?

    Text Solution

    |

  10. Solution A gives pink colour when a drop of phenopthalein indicator is...

    Text Solution

    |

  11. Name one salt whose solution has pH more than 7 and one salt whose has...

    Text Solution

    |

  12. Hydrated copper sulphate on heating changes to

    Text Solution

    |

  13. An aqueous solutons turns red litmus solutoin blue. Excess addition of...

    Text Solution

    |

  14. When a few drops of universal indicator were added to a dilute solutio...

    Text Solution

    |

  15. Dilute hydrochloric acid is added to sodium carbonate. It is observed ...

    Text Solution

    |

  16. Which gas is produced when Al metals reacts wth NaOH solution?

    Text Solution

    |

  17. What will be the colour produced when a drop of pehnolphthalein is add...

    Text Solution

    |

  18. What will be the colour produced when a drop of pehnolphthalein is add...

    Text Solution

    |

  19. What will be the colour produced when a drop of pehnolphthalein is add...

    Text Solution

    |

  20. What will be the colour produced when a drop of pehnolphthalein is add...

    Text Solution

    |