Amongst the following, the total number of compounds whose aqueous solution turns red litmus paper blue is `KCN, K_2S

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Q 1109501418.     Amongst the following, the total number of compounds whose aqueous solution turns red litmus paper blue is

`KCN, K_2SO_4, (NH_4)_2C_2O_4, NaCl`

`Zn(NO_3)_2, FeCl_3, K_2CO_3, NH_4NO_3` ,`LiCN `
NICL-GIC 2010
A

`3`

B

`5`

C

`6`

D

`2`

HINT


Solution
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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