Solved papers for JEE Main & Advanced JEE Main Paper (Held On 10 April 2016)
done JEE Main Paper (Held On 10 April 2016) Total Questions - 1
question_answer1) Sodium extract is heated with concentrated \[HN{{O}_{3}}\] before testing for halogens because :
JEE Main Online Paper (Held On 10 April 2016)
A)
Ag reacts faster with halides in acidic medium.
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B)
Silver halides are totally insoluble in nitric acid.
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C)
\[A{{g}_{2}}S\]and \[AgCN\] are soluble in acidic medium.
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D)
\[{{S}^{2-}}\]and \[C{{N}^{-}},\]if present, are decomposed by conc. \[HN{{O}_{3}}\]and hence do not interfere in the test.