Home
Class 11
CHEMISTRY
For testing halogens in an organic compo...

For testing halogens in an organic compound with `AgNO_(3)` solution, sodium extract (Lassaigne's test) is acidified with dilute `HNO_(3)`. What will happen if a student acidifies the extract with dilute `H_(2)SO_(4)` in place of dilute `HNO_(3)` ?

A

helps in the precipitation of AgCI

B

increases the solubility product of AgCI

C

increases the concentration of `NO_(3)^(-)` ions

D

decomposes `Na_2 S` and NaCN, if formed

Text Solution

Verified by Experts

The correct Answer is:
D

decomposes `Na_2 S` and NaCN, if formed
Promotional Banner

Topper's Solved these Questions

  • ORGANIC CHEMISTRY : SOME BASIC PRINCIPLES AND TECHNIQUES

    ICSE|Exercise TRUE OR FALSE TYPE QUESTIONS|50 Videos
  • ORGANIC CHEMISTRY : SOME BASIC PRINCIPLES AND TECHNIQUES

    ICSE|Exercise FILL IN THE BLANK TYPE QUESTIONS |46 Videos
  • ORGANIC CHEMISTRY : SOME BASIC PRINCIPLES AND TECHNIQUES

    ICSE|Exercise ESSAY ( LONG ANSWER ) TYPE QUESTIONS|42 Videos
  • HYDROGEN

    ICSE|Exercise NCERT TEXT-BOOK EXERCISE (With Hints and Solutions)|53 Videos
  • REDOX REACTIONS (OXIDATION AND REDUCTION)

    ICSE|Exercise NCERT TEXT-BOOK. EXERCISES ((With Hints and Solutions)|69 Videos

Similar Questions

Explore conceptually related problems

What happens when a sulphite reacts with dilute H_(2)SO_(4) in presence of zinc ?

The Lassaigne's extract is boiled with dil. HNO_(3) before testing for halogens because

Which metal gives NH_(4)NO_(3) , when react with dilute HNO_(3) acid?

Which metal gives NH_(4)NO_(3) , when react with dilute HNO_(3) acid?

Which metal gives NH_(4)NO_(3) , when react with dilute HNO_(3) acid?

Zn gives H_(2) gas with H_(2)SO_(4) and HCl but not with HNO_(3) because

Sodium carbonate extract is acidified with HNO_(3) only in the identification of halides. Comment.

The LaSSaigen's extract is boiled with conc. HNO_(3) while testing for halogens. By doing so it :

When Lassiange extract of Methylamine react with FeSO_(4)//"dilute" H_(2)SO_(4) what happened ?

Why is it necessary to test for the acid radicals first (with dilute) H_(2)SO_(4) and then with conc. H_(2)SO_(4) ?

ICSE-ORGANIC CHEMISTRY : SOME BASIC PRINCIPLES AND TECHNIQUES -OBJECTIVE ( MULTIPLE CHOICE ) TYPE QUESTIONS
  1. 29.5 mg of an organic compound containing nitrogen was digested accord...

    Text Solution

    |

  2. In Dumas’ method for estimation of nitrogen, 0.3g of an organic compou...

    Text Solution

    |

  3. For testing halogens in an organic compound with AgNO(3) solution, sod...

    Text Solution

    |

  4. In the Kjeldahl's method for estimation of nitrogen present in a soil ...

    Text Solution

    |

  5. For the estimation of nitrogen 1.4 g of organic compound was diagest b...

    Text Solution

    |

  6. Which of the following ions is most stable ?

    Text Solution

    |

  7. The number of electrons present in the valence shell of carbon bearing...

    Text Solution

    |

  8. The compound which gives the most stable carbonium ion on dehydration ...

    Text Solution

    |

  9. In a free radical, the carbon atom carrying unpaired electron is

    Text Solution

    |

  10. Nitration of benzene is

    Text Solution

    |

  11. The reaction intermediates involved in the addition of HBr to propene ...

    Text Solution

    |

  12. The shape of carbanion [CH(3)]^(-) is: linear bent pyramidal ...

    Text Solution

    |

  13. Which of the following is an electrophile ? NH3 AlCl3 OH^(-) CH3-O...

    Text Solution

    |

  14. Heterolytic fission of C—Cl bond produces two free radicals two ca...

    Text Solution

    |

  15. Which one of the following is the strongest acid ?

    Text Solution

    |

  16. The most stable free radical is

    Text Solution

    |

  17. The formation of cyanohydrin from a ketone is an example of nucleophi...

    Text Solution

    |

  18. Which of the following alkyl halides is hydrolysed by S(N^1)mechanism ...

    Text Solution

    |

  19. Which of the following does contain three pairs of electrons ?

    Text Solution

    |

  20. Amongst the following, which are true for S(N^2) reaction ? (i) The ra...

    Text Solution

    |