Home
Class 12
CHEMISTRY
10.78 g of H3 PO4 in 550 ml solution is ...

10.78 g of `H_3 PO_4` in 550 ml solution is 0.40 N. Thus this acid:

A

has been neutralised to `HPO_(4)^(2-)`

B

has been neautralised to `PO_(4)^(3-)`

C

has been reduced to `HPO_(3)^(2-)`

D

has been neutralised to `H_(2)PO_(4)^(-)`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • OXIDATION & REDUCTION

    MOTION|Exercise EXERCISE -3(BALANCING OF REACTIONS )|56 Videos
  • OXIDATION & REDUCTION

    MOTION|Exercise EXERCISE -4(LEVEL-I)|14 Videos
  • OXIDATION & REDUCTION

    MOTION|Exercise EXERCISE-2 ( LEVEL-I)|50 Videos
  • NOMENCLATURE OF ORGANIC COMPOUNDS

    MOTION|Exercise PREVIOUS YEAR|8 Videos
  • P-BLOCK ELEMENTS

    MOTION|Exercise Exercise - 4 | Level-I Previous Year | JEE Main|37 Videos

Similar Questions

Explore conceptually related problems

The basicity of H_3 PO_4 is

0.9698 g of an acid are present in 300 mL of a solution. 10 mL of this solution requires exactly 20 mL of 0.05 N KOH solution. If the mol.wt. of acid is 98 , calculate the number of neutralizable protons.

Objective question (single correct answer). i. H_(3) PO_(4) is a tribasic acid and one of its salt is NaH_(2) PO_(4) . What volume of 1M NaOH solution should be added to 12 g of NaH_(2) PO_(4) to convert in into Na_(3) PO_(4) ? a. 100 mL b. 2 mol of Ca (OH)_(2) c. Both d. None iii. The normality of a mixture obtained mixing 100 mL of 0.2 m H_(2) SO_(4) with 100 mL of 0.2 M NaOH is: a. 0.05 N b. 0.1 N c. 0.15 N d. 0.2 N iv 100 mL solution of 0.1 N HCl was titrated with 0.2 N NaOH solutions. The titration was discontinued after adding 30 mL of NaOH solution. The reamining titration was completed by adding 0.25 N KOH solution. The volume of KOH required from completing the titration is: a. 70 mL b. 35 mL c. 32 mL d. 16 mL

25 mL of 0.107 M H_(3)PO_(4) was titrated with 0.115 M solution of NaOH to the end point identified by indicator bromocresol green.This required 23.1 mL . The titration was repeated using phenolphthalein as indicator. This time 25 mL of 0.107 M H_(3)PO_(4) reuired 46.2 mL of the 0.115 M NaOH . What is the coefficient of n in this equation for each reaction? H_(3)PO_(4)+n OH^(-)rarr nH_(2)O+[H_(3-n)PO_(4)]^(n-)

0.63 g of diabasic acid was dissolved in water. The volume of the solution was made 100 mL . 20 mL of this acid solution required 10 mL of N//5 NaOH solution. The molecular mass of acid is:

MOTION-OXIDATION & REDUCTION -EXERCISE-2 ( LEVEL-II)
  1. For the redox reaction, MnO(4)^(-) + C(2)O(4)^(2-) + H^(+) rarr Mn^(...

    Text Solution

    |

  2. The normality of 0.3 M phosphorous acid (H(3) PO(3)) is

    Text Solution

    |

  3. 10.78 g of H3 PO4 in 550 ml solution is 0.40 N. Thus this acid:

    Text Solution

    |

  4. A mixture of 1 mole each of FeSO(4) and FeC(2)O(4) are taken then :

    Text Solution

    |

  5. 100 ml "of" 0.06 M Ca (NO(3))(2) is added to 50 mL of 0.06 M Na(2)C(2)...

    Text Solution

    |

  6. H(2)C(2)O(4) and NaHC(2)O(4) behave as acids as well as reducing agent...

    Text Solution

    |

  7. What mass of N(2)H(4) can be oxidised to N(2) by 24 g of K(2)CrO(4) wh...

    Text Solution

    |

  8. The ion A^(n+) is oxidised to AO(3)^(-) by MnO(4)^(-) changing to Mn^...

    Text Solution

    |

  9. 2.180 gram of a sample contains a mixture of XO and X(2)O(3) which are...

    Text Solution

    |

  10. The number of moles of KMnO(4) that will be needed to react completely...

    Text Solution

    |

  11. The number of moles of KMnO(4) that will be needed to react with one m...

    Text Solution

    |

  12. One mole of calcium phosphide on reaction with excess of water gives

    Text Solution

    |

  13. How many litres of a 0.5 N solution of an oxidising agent are reduced ...

    Text Solution

    |

  14. In the titration of K(2)Cr(2)O(7) and ferrous sulphate, following data...

    Text Solution

    |

  15. To 25 ml of H(2)O(2) solution, excess of acidified solution of KI was ...

    Text Solution

    |

  16. 10 g mixture of KI and NaClO(3) treated with 200 cc HCl gives a gas wh...

    Text Solution

    |

  17. 100 ml of 0.15 N H(2)O(2) is completely oxidized by

    Text Solution

    |

  18. An aqueous solution of 6.3 g of oxalic acid dihydrate is made upto 250...

    Text Solution

    |

  19. In the standardization of Na(2)S(2)O(3) using K(2)Cr(2)O(7) by iodomet...

    Text Solution

    |

  20. A 110% sample of oleum contains

    Text Solution

    |