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

KCN $K_{2} S O_{4}$ $(N H_{4})_{2} C_{2} O_{4}$ $N a C l$ $Z n (N O_{3})_{2}$ $F e C l_{3}$ $K_{2} C O_{3}$ $N H_{4} N O_{3}$
$L i C N$

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Solution

Basic salt solutions will have pH > 7. These will change the colour of litmus paper from red to blue

Here, $K C N, K_{2} C O_{3}$ and $L i C N$ are the only basic salts. So, the answer will be 3.

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

K C N, K_{2} {S O}_{4}, {({N H}_{4})}_{2} {C_{2} O}_{4}, N a C l, Z n {({N O}_{3})}_{2}, F e {C l}_{3}, K_{2} C O_{3}, {N H}_{4} {N O}_{3}, L i C N

Q. Among the following, the total number of compounds whose aqueous solution turns red litmus to blue is:

K C N, K_{2} {S O}_{4}, {({N H}_{4})}_{2} C_{2} O_{4}, N a C l, Z n {({N O}_{3})}_{2}, F e {C l}_{3}, K_{2} {C O}_{3}, {N H}_{4} {N O}_{3}, L i C N

Q. Amongst the following, the total no. of compound whose aq. Solution turn red litmus paper blue is______.

K C N, K_{2} {S O}_{4}, ({N H}_{4})_{2} C_{2} O_{4}, N a C l, Z n ({N O}_{3})_{2}, F e {C l}_{3}, K_{2} {C O}_{3}, {N H}_{4} {N O}_{3}, L i C N

Q. Aqueous solution of which of the following salts turns the red litmus blue?

When a red litmus paper is dipped in the aqueous solution of $X$ there is no change in colour.
When a blue litmus paper is dipped in the same solution it turns red.
Which among the following options can be the chemical $X$ ?

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

KCN $K_{2} S O_{4}$ $(N H_{4})_{2} C_{2} O_{4}$ $N a C l$ $Z n (N O_{3})_{2}$ $F e C l_{3}$ $K_{2} C O_{3}$ $N H_{4} N O_{3}$
$L i C N$

Basic salt solutions will have pH > 7. These will change the colour of litmus paper from red to blue

Here, $K C N, K_{2} C O_{3}$ and $L i C N$ are the only basic salts. So, the answer will be 3.

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Amongst the following, the total number of compounds whose aqueous solution turns red litmus paper blue is ___ KCN K2SO4 (NH4)2C2O4 NaCl Zn(NO3)2 FeCl3 K2CO3 NH4NO3 LiCN

Basic salt solutions will have pH > 7. These will change the colour of litmus paper from red to blue Here, KCN,K2CO3 and LiCN are the only basic salts. So, the answer will be 3.

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

KCN $K_{2} S O_{4}$ $(N H_{4})_{2} C_{2} O_{4}$ $N a C l$ $Z n (N O_{3})_{2}$ $F e C l_{3}$ $K_{2} C O_{3}$ $N H_{4} N O_{3}$
$L i C N$

Basic salt solutions will have pH > 7. These will change the colour of litmus paper from red to blue

Here, $K C N, K_{2} C O_{3}$ and $L i C N$ are the only basic salts. So, the answer will be 3.