Home
Class 12
CHEMISTRY
Why are potassium and caesium, rather li...

Why are potassium and caesium, rather lithium used in photoelectric cells?

Text Solution

Verified by Experts

Because they show property of photoelectric effect.
Promotional Banner

Topper's Solved these Questions

  • THE S-BLOCK ELEMENTS

    AAKASH INSTITUTE|Exercise Assignment (Section-A)|33 Videos

  • THE S-BLOCK ELEMENTS

    AAKASH INSTITUTE|Exercise Assignment (Section-B)|13 Videos

  • THE S-BLOCK ELEMENTS

    AAKASH INSTITUTE|Exercise Illustration|2 Videos

  • THE P-BLOCK ELEMENTS

    AAKASH INSTITUTE|Exercise Assignment Section-J)|16 Videos

  • THE SOLID STATE

    AAKASH INSTITUTE|Exercise Assignment (SECTION - D) (ASSERTION-REASON TYPE QUESTION)|20 Videos

Similar Questions

Explore conceptually related problems

Why are potassium and caesium, rather than lithium used in photoelectric cells ?

Lithium is used photoelectric cells.

Why are potassium and cesium, rather than lithium can be used in photoelectric cells ?

The metal used in photoelectric cell is-

The alkali metal used in photoelectric cell is

Statement-1: Potassium and caesium are used in photo-electric cells. Statement-2: Potassium and caesium emit electrons on exposure to light above certain minimum frequency.

AAKASH INSTITUTE-THE S-BLOCK ELEMENTS-Try Yourself
  1. What colour is imparted by Rubidium in flame test?

    Text Solution

    |

  2. Which alkali mettal do not show photoelectric effect?

    Text Solution

    |

  3. Why are potassium and caesium, rather lithium used in photoelectric ce...

    Text Solution

    |

  4. What kind of chemical compounds are formed when alkali metal oxides re...

    Text Solution

    |

  5. K, Rb and Cs form which type of compounds with oxygen?

    Text Solution

    |

  6. Which compound is formed when lithium reacts directly with nitrogen in...

    Text Solution

    |

  7. What is electrode potential?

    Text Solution

    |

  8. If an element has more negative value of electrode potential, then wha...

    Text Solution

    |

  9. Apart from water, alkali metals react with which kind of compounds?

    Text Solution

    |

  10. Write two properties of the alkali metal hydrides.

    Text Solution

    |

  11. Except for lithium, alkali metals form their hydrides at what temperat...

    Text Solution

    |

  12. Why lithium halides show covalent nature.

    Text Solution

    |

  13. Among alkali metals. Which one is the strongest reducing agent?

    Text Solution

    |

  14. If standard electrode potential of an element x is -1.70V and of anoth...

    Text Solution

    |

  15. Name the ions present in solution of ammonia and alkali metals.

    Text Solution

    |

  16. The blue colour of solution of ammonia and alkali metals is due to whi...

    Text Solution

    |

  17. The blue coloured solution is diamagnetic or paramagnetic?

    Text Solution

    |

  18. The bronze coloured solution is diamagnetic or paramagnetic?

    Text Solution

    |

  19. What kind of oxides are formed by sodium?

    Text Solution

    |

  20. What is the trend of enthalpy of formation of alkali metal fluoride?

    Text Solution

    |