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Match the reactions listed in column (I) with the colour of the precipitate(s) listed in column (II). `{:("Column I","Column II"),((A)Cu^(2+)(aq)overset("allow to stand for sometime")to,(p)"Brown"),((B)"Hot" Bi^(3+)(aq)+C_6H_3(OH_3)to,"(q)Brownish-red"),(( C)Ag^+(aq)+AsO_4^(3-)(aq.)to,"(s)Yellow"),((D)Mn^(2+)(aq.)+2OH^(-)(aq.)overset("air")to,"(s)White"),(,"(t)Green"):}` |
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Answer» Correct Answer - A-s ; B-r ; C-q ;D-p (A)`Cu^(2+)+2SCN^(-)toCu(SCN)_2darr`(black) `2Cu(SCN)_2darrto2CuSCNdarr("white")+(SCN)_2uarr` (B)`"Hot"Bi^(3+)(aq)+C_6H_3(OH)_3overset(H^+)toBi(C_6H_3O_3)darr("yellow")+3H^(+)` (C )`2Ag^(+)(aq)+AsO_4^(3-)(aq)toAg_3AsO_4darr`(brownish-red) (D)`Mn^(2+)(aq.)+2OH^(-)(aq)toMn(OH)_2darr`(white) `Mn(OH)_2darr+O_2to2MnO(OH)_2darr`(brown) |
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