Home
Class 11
CHEMISTRY
Buffer solutions have constant acidity a...

Buffer solutions have constant acidity and alkalinity because

A

these give unionised acid or base on reaction with added acid or alkali

B

acids and alkalis in these solutions are shielded from attack by other ions

C

they have large excess of `H^+` or `OH^-` ions

D

they have fixed value of pH

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • EQUILIBRIUM

    MODERN PUBLICATION|Exercise Objective C.(MCQs)|11 Videos

  • EQUILIBRIUM

    MODERN PUBLICATION|Exercise Objective D.(MCQs) Passage|10 Videos

  • EQUILIBRIUM

    MODERN PUBLICATION|Exercise Objective A.(MCQs)|41 Videos

  • ENVIRONMENTAL POLLUTION

    MODERN PUBLICATION|Exercise UNIT PRACTICE TEST|15 Videos

  • HALOALKANES AND HALOARENES

    MODERN PUBLICATION|Exercise UNIT PRACTICE TEST|12 Videos

Similar Questions

Explore conceptually related problems

A buffer has a reserve acidity and reserve alkalinity . Explain with a suitalbe example.

An aqueous solution of sodium carbonate is alkaline because sodium carbonate is a salt of

An acidic buffer contains equal concentrations of acid and salt. The dissociation constant of acid is 10^(-5) . The P^(H) of the buffer solution is

The nature of a solution whether neutral , acidic or basic depends upon its pH value. The pH of a solution changes when an acid or base added to it . Howerver the pH of the solution is maintained by the addition of a suitable buffer whether acidic or basic. (i) Define a buffer solution (ii) Give one example each of acidic and basic buffers. (iii) What is the value associated with the use of buffer solution in human beings ?

A buffer solution is made up of acetic acid [pK_(a)=5] having conc.=1.5M and sodium acetate having conc.=0.15 M. What is the number OH^(-) ions present in 1 litre solution?

MODERN PUBLICATION-EQUILIBRIUM-Objective B.(MCQs)
  1. Which of the following will decrease the pH of a 50 ml solution of 0.0...

    Text Solution

    |

  2. pH of saturated solution of Ba(OH)(2) is 12. The value of solubility p...

    Text Solution

    |

  3. Buffer solutions have constant acidity and alkalinity because

    Text Solution

    |

  4. Determine the degree of ionisation and pH of a 0.05 M ammonia solution...

    Text Solution

    |

  5. Which of these is least likely to act as Lewis base?

    Text Solution

    |

  6. For the reaction 2A3 hArr 3A2 the equilibrium constant and the DeltaG...

    Text Solution

    |

  7. The pKa of a weak acid HA and pkb of a weak base BOH are 4.60 and 4.80...

    Text Solution

    |

  8. For a given exothermic reaction , K(p) and k'(p) are the equilibrium c...

    Text Solution

    |

  9. For the chemical reaction N(2)(g)+3H(2)(g)hArr2NH(3)(g) The correc...

    Text Solution

    |

  10. Which of the following salts will give highest pH in water?

    Text Solution

    |

  11. Using the Gibb's energy change , DeltaG^@=+63.3 kJ , for the following...

    Text Solution

    |

  12. At 800 K in a sealed vessel for the equilibrium N(2)(g) + O(2) (g) hAr...

    Text Solution

    |

  13. Which one of the following species cannot act as both Bronsted acid a...

    Text Solution

    |

  14. The K(sp) of Ag(2)CrO(4),AgCl,AgBr and AgI are respectively, 1.1xx10^(...

    Text Solution

    |

  15. What is the pH of the resulting solution when equal volumes of 0.1 M N...

    Text Solution

    |

  16. Which one of the following pairs of solution is not an acidic buffer?

    Text Solution

    |

  17. If the equilibrium constant for N(2) (g) + O(2)(g) hArr 2NO(g) is K...

    Text Solution

    |

  18. If the value of equilibrium constant for a particular reaction is1.6xx...

    Text Solution

    |

  19. MY and NY(3) two nearly insoluble salts, have the same K(sp) values of...

    Text Solution

    |

  20. The percentage of pyridine (C(5)H(5)N) that forms pyridinium ion (C(5)...

    Text Solution

    |