Home
Class 11
CHEMISTRY
Assertion: In the titration of Na(2)CO(3...

Assertion: In the titration of `Na_(2)CO_(3)` with `HCl` using methyl orange indicator, the volume of acid required is twice that of the acid required using phenolphthalein as indicaton.
Reason: Two moles of `HCl` are required for the complete neutralisation of one mole of `Na_(2)CO_(3)`.

A

(a)If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

(b)If both assertion and reason are true and the reason is not the correct explanation of the assertion.

C

(c )If assertion is true but reason is false.

D

(d)If assertion is false but reason is true.

Text Solution

Verified by Experts

The correct Answer is:
B
`Na_(2)O_(3)+2 HCl rarr 2Na Cl+HO+CO_(2)`,
phenolphthalein is used for
`Na_(2)O_(3)+2 HCl rarr NaHCO_(3)+NaCl+CO_(2)`
Promotional Banner

Topper's Solved these Questions

  • SOME BASIC CONCEPTS OF CHEMISTRY

    A2Z|Exercise AIPMT/NEET Questions|34 Videos

  • SOME BASIC CONCEPTS OF CHEMISTRY

    A2Z|Exercise AIIMS Questions|20 Videos

  • SOME BASIC CONCEPTS OF CHEMISTRY

    A2Z|Exercise Significant Figures, Rounding Off And Dimentional Analysis|18 Videos

  • S BLOCK ELEMENTS ( GROUP 13 - 14)

    A2Z|Exercise Section D - Chapter End Test|29 Videos

  • SOME BASIC PRINCIPALS OF ORGANIC CHEMISTRY

    A2Z|Exercise Section D - Chapter End Test|60 Videos

Similar Questions

Explore conceptually related problems

(a). IF both (A) and (R) are correct and (R) is the correct explanation of (A). (b). If both (A) and (R) are correct but (R) is not the correct explanation of (A). (c). If (A) is correct, but (R) is incorrect. (d). If (A) is incorrect, but (R) is correct. ltbr. (e) if both (A) and (R) are incorrect. Q. Assertion (A): In the titration of Na_(2)CO_(3) with HCl using methyl orange indicator the volume required at the equivalence point is twice that of the acid requried using phenolphthalein indicator. Reason (R): 2 " mol of "HCl are requried for complete neutralisation of one mole of Na_(2)CO_(3) .

(a). If both (A) and (R) are correct and (R) is the appropriate explanation for (A). (b). If both (A) and (R) are correct and (R) is the correct explanation of (A). (c). If (A) is correct but (R) is incorrect. (d). If (A) is incorrect, but (R) is correct. (e). If both (A) and (R) are incorrect. Q. Assertion (A): in the titration of Na_(2)CO_(3) with HCl using methyl orange indicator, the volume required at the equivalence point is twice that of the acid requried using phenolphthalein indicator. Reason (R): Two moles of HCl is requried for the complete neutralisation of 1 " mol of " Na_(2)O_(3)

A sample of NaHCO_(3) + Na_(2)CO_(3) required 20 ml of HCl using phenolphthalein as indicator and 35ml more required if methyl orange is used as indicator . Then molar ratio of NaHCO_(3) to Na_(2)CO_(3) is

How many moles of HCl will be required to completely convert 1 moles of borax into borax acid ?

In the mixture of NaHCO_(3) and Na_(2)CO_(3) , the volume of a given HCl required is x mL with phenolphthalein indicator and further y mL required with methyl orange indicator. Hence volume of HCl for complete reaction NaHCO_(3) is

A2Z-SOME BASIC CONCEPTS OF CHEMISTRY-Section B - Assertion Reasoning
  1. Assertion: Acidimetry and alkalimetry are the terms used in volumetric...

    Text Solution

    |

  2. Assertion: NaNO(3) has no definite molecule. Reason: Its formula mas...

    Text Solution

    |

  3. Assertion: 31.26 mL of 0.165 M solution of Ba(OH)(2) is exactly neutra...

    Text Solution

    |

  4. Statement H(3)BO(3) is monobasic Lewis acid but its salt Na(3)BO(3) ex...

    Text Solution

    |

  5. Assertion: In the titration of Na(2)CO(3) with HCl using methyl orange...

    Text Solution

    |

  6. Assertion (A): pure water obtained from different states of india alwa...

    Text Solution

    |

  7. Statement 1 "mole" O(3)=N "molecule"O(3)=3N atoms of O=48 g Explanat...

    Text Solution

    |

  8. Assertion (A): The standard unit of expressing the mass of atom is amu...

    Text Solution

    |

  9. Statement Equivalent weight of a species can be written as molecular w...

    Text Solution

    |

  10. Statement H(3)PO(3) is a dibasic acid and its salt Na(2)PO(3) does not...

    Text Solution

    |

  11. Statement Addition of water to a solution containing solute and solven...

    Text Solution

    |

  12. Assertion: The weight percentage of a compound A in a solution is give...

    Text Solution

    |

  13. Assertion: The ratio of the mass of 100 billion atoms of magnesium to ...

    Text Solution

    |

  14. Assertion: The average mass of one Mg atom is 24.305 amu, which is not...

    Text Solution

    |

  15. Assertion: A molecule of butane, C(4)H(10) has a mass of 58.12 amu. ...

    Text Solution

    |

  16. Assertion: Both 12 g. of carbon and 27 g. of aluminium will have 6.02x...

    Text Solution

    |

  17. Assertion: The molality and molarity of very dilute aqueous solutions ...

    Text Solution

    |

  18. Assertion: Laboratory reagents are usually made up to a specific molar...

    Text Solution

    |

  19. Assertion: Molality and mole fraction concentration units do not chang...

    Text Solution

    |

  20. Assertion: A one mola solution prepared at 20^(@)C will retain the sam...

    Text Solution

    |