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Which of the following statements "is"//...

Which of the following statements `"is"//"are"` correct?

A

Molecular formula or molecular mass of a gaseous hydrocarbon can be determined even without knowing their percentage composition by eudiometry

B

In Lassaigne's test, N and S both present in the organic compound are converted into CNS ion

C

`K_(2)SO_(4)` and `CuSO_(4)` are added in Kjeldahl's method. `K_(2)SO_(4)` acts as a catalyst while `CuSO_(4)` raises the boiling point of `H_(2)SO_(4)`

D

Layer test is used to distinguish `Cl*`'' and" `Br^(-)` ions

Text Solution

Verified by Experts

The correct Answer is:
A, B
c) In Kjeldane.s method `K_(2)SO_(4)` raises boiling point of `H_(2)SO_(4)` while `CuSO_(4)` or Hg works as a catalys
d) Layer test used to identify `Br^(-)` and `I^(-)`.
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