Home
Class 12
CHEMISTRY
When a piece of sodium metal is dropped ...

When a piece of sodium metal is dropped in water, a reaction takes place to yield hydrogen because:

A

sodium loses electrons

B

sodium acts as an oxidising agent

C

water loses electrons

D

water acts as a reducing agent

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    OP TANDON|Exercise OBJECTIVE TYPE QUESTION (LEVEL -B)|52 Videos

  • ELECTROCHEMISTRY

    OP TANDON|Exercise One or more than correct answer|19 Videos

  • ELECTROCHEMISTRY

    OP TANDON|Exercise PRACTICE PROBLEMS|94 Videos

  • COORDINATION COMPOUNDS

    OP TANDON|Exercise SBJECTIVE TYPE|96 Videos

  • HALOALKANES AND HALOARENES

    OP TANDON|Exercise Single Interger answer type questions|14 Videos

Similar Questions

Explore conceptually related problems

When a piece of sodium metal is dropped in water, hydrogen gas evolved because

What happens when a piece of sodium metal is dropped in water taken in a beaker ?

A piece of sodium is dropped in ethanol. Give balanced reaction.

A piece of sodium is dropped in ethanoic acid. Give balanced reaction.

Fusion reaction takes place at high temperature because

Sodium when dropped in water catches fire because

When a small piece of dry sodium is put in water, it reacts vigorously to produce

OP TANDON-ELECTROCHEMISTRY-OBJECTIVE TYPE QUESTION (LEVEL -A)
  1. Which are true for a standard hydrogen electrode ?

    Text Solution

    |

  2. For the half-cell reaction, Au^(3+) + 3e^(-) rarr Au the value of ...

    Text Solution

    |

  3. When a piece of sodium metal is dropped in water, a reaction takes pla...

    Text Solution

    |

  4. Which one is the wrong statement about electrochemical series?

    Text Solution

    |

  5. The reduction potential values are given below AI^(3+)//AI =- 1.67 "...

    Text Solution

    |

  6. From the values given in question No. 63, which one is the oxidising a...

    Text Solution

    |

  7. The standard electrode potentials of four elements A, B, C and D are -...

    Text Solution

    |

  8. Which of the following methods does not liberate hydrogen ?

    Text Solution

    |

  9. A depolarizer used in dry cell is :

    Text Solution

    |

  10. The oxide which can be reduced by hydrogen is :

    Text Solution

    |

  11. The reference calomel electrode is made from which of the following ?

    Text Solution

    |

  12. Given, standard electrode potentials, {:(Fe^(3+)+3e^(-) rarr Fe,,,E^...

    Text Solution

    |

  13. K,Ca and Li metals may be arranged in the decreasing order of their st...

    Text Solution

    |

  14. Which of the following is incorrect in a galvanic cell ?

    Text Solution

    |

  15. In an electrochemical cell, anode and cathode are:

    Text Solution

    |

  16. Is the reaction, 2Al+3Fe^(2+) hArr 2Al^(3+) + 2Fe possible ?

    Text Solution

    |

  17. In an experiment setup for the measurement of EMF of a half cell using...

    Text Solution

    |

  18. A secondary cell is one :

    Text Solution

    |

  19. The reduction potential of a hydrogen electrode at pH 10 at 298K is : ...

    Text Solution

    |

  20. The standard emf of the cell, Ni|Ni^(2+)(1.0M)||Ag^(+)(1.0M)|Ag [E^(@)...

    Text Solution

    |