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In the contact process, the impurities of arsenic are removed by a) Fe 2 O 3 b) Fe(OH) 3 c) Al(OH) 3 d) Cr(OH) 3



      In the contact process, the impurities of arsenic are removed by


a)      Fe2O3  


b)      Fe(OH)3


c)      Al(OH)3           


d)      Cr(OH)3


Grade:upto college level

1 Answers

Radhika Batra
247 Points
7 years ago

Ans:     b

Exp:     In the contact process, the arsenic impurities are removed by Fe(OH)3 (gelatinous) which absorbs arsenious oxide.

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