Loading [MathJax]/jax/output/HTML-CSS/jax.js


1)

In Carius method of estimation of halogens, 250 mg of an organic compound gave 141 mg of AgBr. The percentage of bromine in the compound is [ at. mass Ag=108, Br=80]


A) 24

B) 36

C) 48

D) 60

Answer:

Option A

Explanation:

Given,

  weight of organic compound =250  mg

 Weight of AgBr=141 mg

    According to formula of %  of bromine by Carius method

       %  of Br=   Atomic weight of Br / Molecular  weight of AgBr

                 x    Weight of AgBr/ Weight of organic bromide   x 100

      % of Br=    80188×141250×100

                                    =  112800047000=24 %