Among the following, find the total number of compounds whose aqueous solution turns red litmus paper blue:
$K C N, K_{2} S O_{4}, (N H_{4})_{2} S O_{4}, N a C l, Z n (N O_{3})_{2}, F e C l_{2}, K_{2} C O_{3}, N H_{4} N O_{2}, L i C N$ .

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Solution

The total number of compounds whose aqueous solution turns red litmus paper blue is 3. These are basic compounds $K C N$ , $K_{2} C O_{3}$ and $L i C N$ .

They are the salts of the weak acid and strong base. Hence, their aqueous solutions are basic in nature.

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Q.
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

Q. Amongst the following, the total number of compounds whose aqueous solution tums 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

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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Among the following, find the total number of compounds whose aqueous solution turns red litmus paper blue:KCN,K2SO4,(NH4)2SO4,NaCl,Zn(NO3)2,FeCl2,K2CO3,NH4NO2,LiCN.

The total number of compounds whose aqueous solution turns red litmus paper blue is 3. These are basic compounds KCN, K2CO3 and LiCN. They are the salts of the weak acid and strong base. Hence, their aqueous solutions are basic in nature.

Among the following, find the total number of compounds whose aqueous solution turns red litmus paper blue:
$K C N, K_{2} S O_{4}, (N H_{4})_{2} S O_{4}, N a C l, Z n (N O_{3})_{2}, F e C l_{2}, K_{2} C O_{3}, N H_{4} N O_{2}, L i C N$ .

The total number of compounds whose aqueous solution turns red litmus paper blue is 3. These are basic compounds $K C N$ , $K_{2} C O_{3}$ and $L i C N$ .

They are the salts of the weak acid and strong base. Hence, their aqueous solutions are basic in nature.