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Lassaigne’s test (with silver nitrate) i...

Lassaigne’s test (with silver nitrate) is commonly used to detect halogens such as chlorine, bromine and iodine but not useful to detect fluorine because the product AgF formed is

A

volatile

B

reactive

C

explosive

D

soluble

Text Solution

Verified by Experts

The correct Answer is:
D
As AgF is soluble in Lassaighe.s solution (silver nitrate solution), it will not give any precipitate.
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Knowledge Check

  • Widal test is used to detect

    A
    pneumonia
    B
    typhoid
    C
    cholera
    D
    whooping cough

  • Statement 1 : Displacement reactions of chlorine, bromine and iodine using fluorine are not generally carried out in aqueous solution. Statement 2 : Fluorine being highly reactive attacks water and displaces the oxygen of water.

    A
    Statement 1 is 'True, statement 2 is True, Statement 2 is Correct explanation for Statement 1.
    B
    Statement 1 is True, Statement 2 is True, Statement 2 is NOT a correct explanation for Statement 1.
    C
    Statement 1 is True, Statement 2 is False.
    D
    Statement 1 is False, Statement 2 is True.

  • Assertion : Displacement reactions of chlorine, bromine and iodine using fluorine are not generally carried out in aqueous solution. Reason : Fluorine being highly reactive attacks water and displaces the oxygen of water.

    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 both (A) and (R) are incorrect.

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