Which of the following reagents turns white precipitate of `AgCl` yellow?
Which of the following reagents turns white precipitate of `AgCl` yellow?
A. `NaNO_(3)`
B. `Na_(3)AsO_(3)`
C. `Na_(3)AsO_(4)`
D. `NaCN`
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Correct Answer - B
`3AgCl+Na_(3)AsO_(3)toAg_(3)AsO_(3)darr("yellow")+3Cl^(-)+3Na^(+)`
`AsO_(4)^(3-)+3Ag^(+)toAg_(3)AsO_(4)darr`(brownish-red)
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