A metal (X) dissolves both in dil. HCl and dil. NaOH to liberate H2. Addition of NH4Cl and excess NH4OH to an HCl solution of X produces Y as a precipitate. Y is also produced by adding NH4Cl to the NaOH solution of X. The species X and Y, respectively, are

Question

A metal (X) dissolves both in dil. HCl and dil. NaOH to liberate H2. Addition of NH4Cl and excess NH4OH to an HCl solution of X produces Y as a precipitate. Y is also produced by adding NH4Cl to the NaOH solution of X. The species X and Y, respectively, are (A) Zn and Zn(OH)2 (B) Al and Al(OH)3 (C) Zn and Na2ZnO2 (D) Al and NaAlO2

Tardigrade Admin · Accepted Answer

Al(X) metal dissolves both in dil. HCl and dil. NaOH to liberate H2. Addition of NH4Cl and excess NH4OH to an HCl solution of Al produces Al(OH)3 (Y) as an precipitate. Al(OH)3 is also produced by adding NH4Cl to the NaOH solution of Al <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/physics/8c757255b069cdfec68620ae582b2cd9-.jpeg" />

$Z n$ and $Z n (O H)_{2}$

$A l$ and $A l (O H)_{3}$

$Z n$ and $N a_{2} Z n O_{2}$

$A l$ and $N a A l O_{2}$

Q. A metal (X) dissolves both in dil. HCl and dil. NaOH to liberate H2​. Addition of NH4​Cl and excess NH4​OH to an HCl solution of X produces Y as a precipitate. Y is also produced by adding NH4​Cl to the NaOH solution of X. The species X and Y, respectively, are

Zn and Zn(OH)2​

Al and Al(OH)3​

Zn and Na2​ZnO2​

Al and NaAlO2​

Al(X) metal dissolves both in dil. HCl and dil. NaOH to liberate H2​. Addition of NH4​Cl and excess NH4​OH to an HCl solution of Al produces Al(OH)3​ (Y) as an precipitate. Al(OH)3​ is also produced by adding NH4​Cl to theNaOH solution of Al

$Z n$ and $Z n (O H)_{2}$

$A l$ and $A l (O H)_{3}$

$Z n$ and $N a_{2} Z n O_{2}$

$A l$ and $N a A l O_{2}$