In carius method of estimation of halogen, 0.45 g of an organic compound gave 0.36 g of AgBr . Find out the percentage of bromine in the compound.
(Molar masses: AgBr = 188 , Br = 80

Question

Canvas Classes · Accepted Answer

Step 1: Recall the Carius Method Formula

In the Carius method for bromine:

Step 2: Substitute Given Values

-  = 0.36 g
-  = 0.45 g
- Molar mass AgBr = 188 g/mol; Molar mass Br = 80 g/mol

Step 3: Calculate Percentage

Answer:  → Option (a)

Verification:

Key Points to Remember:
- Bromine formula: 
- 
- AgBr: pale yellow precipitate, insoluble in dilute HNO₃, partially soluble in NH₃
- Carius tube: sealed borosilicate glass tube for high-pressure reactions

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