Home
Class 12
CHEMISTRY
0.023g of sodium metal is reacted with 1...

0.023g of sodium metal is reacted with `100 cm^(3)` of water. The pH of the resulting solution is :

A

10

B

11

C

9

D

12

Text Solution

Verified by Experts

The correct Answer is:
D
`M=(0.023xx1000)/(23xx100)=0.01M`
`Na^(+)+OH^(-)hArrNaOH`
`[OH^(-)]=0.01M=10^(-2)M," "pOH=-log(10^(-2))=2`
`pH+pOH=14`
`:." "pH=14-2rArrpH=12`.
Promotional Banner

Topper's Solved these Questions

  • KARNATAKA CET 2009

    KCET PREVIOUS YEAR PAPERS|Exercise CHEMISTRY|59 Videos

  • KARNATAKA CET 2012

    KCET PREVIOUS YEAR PAPERS|Exercise CHEMISTRY|60 Videos

Similar Questions

Explore conceptually related problems

Four grams of sodium hydroxide have been added to 10^(3)L tank of water. The pH of resulting solution is :

100 ml of 0.1 N NaOH are mixed with 100 ml of 0.2 N HCl solution and the whole solution is made upto 1 litre. The pH of the resulting solution is :

1 ml of 0.1 N HCl is added to 1 L solution of sodium chloride. The pH of the resulting solution is

A buffer solution contains 0.1 mole of sodium acetate dissolved in 1000 cm^(3) of 0.1 M acetic acid. To the above buffer solution, 0.1 mole of sodium acetate is further added and dissolved. The pH of the resulting buffer is

KCET PREVIOUS YEAR PAPERS-KARNATAKA CET 2010-Chemistry
  1. A dibromo derivative of an alkane reacts with sodium metal to form an ...

    Text Solution

    |

  2. The time required for 100% completion of a zero order reaction is

    Text Solution

    |

  3. 0.023g of sodium metal is reacted with 100 cm^(3) of water. The pH of ...

    Text Solution

    |

  4. Which one of the following is wrongly matched?

    Text Solution

    |

  5. Which of the following is most energetic conformation of cyclohexane?

    Text Solution

    |

  6. Which one of the following is a molecular crystal?

    Text Solution

    |

  7. A buffer solution contains 0.1 mole of sodium acetate dissolved in 100...

    Text Solution

    |

  8. Which one of the following has the most nucleophilic nitrogen ?

    Text Solution

    |

  9. Chloroacetic acid is a stronger acid than acetic acid. This can be exp...

    Text Solution

    |

  10. The correct sequence of reaction to convert p-nitrophenol into quinol ...

    Text Solution

    |

  11. CH(3)CH(2)Br overset("aq. KOH")underset(Delta)rarr A overset(KMnO(4)//...

    Text Solution

    |

  12. The letter 'D' in D-glucose signifies :

    Text Solution

    |

  13. Reaction of methyl bromide with aqueous sodium hydroxide involves

    Text Solution

    |

  14. 9.65C of electric current is passed through fused anhydrous magnesium ...

    Text Solution

    |

  15. Which one of the following does NOT involve coagulation ?

    Text Solution

    |

  16. In alkaline medium, alanine exists predominantly as

    Text Solution

    |

  17. The standard emf of galvanic cell involving 3 moles of electrons in it...

    Text Solution

    |

  18. Benzaldehyde and acetone can best distinguished using

    Text Solution

    |

  19. Which one of the following statements is true

    Text Solution

    |

  20. The following data is obtained during the first order thermal decompos...

    Text Solution

    |