Tag: reaction of metals

Questions Related to reaction of metals

When iron filings are heated in a steam of dry hydrogen chloride, the compound formed is $FeCl _{x}$, where 'x' is :

chemistry metals reaction of metals reactions of metals chemical properties of metals

  1. $1$

  2. $2$

  3. $3$

  4. $4$

Show answer
Correct Option: B
Explanation:

$Fe+2HCl\rightarrow Fe{ Cl } _{ 2 }+{ H } _{ 2\  }\\ x=2$

$Zn + H _{2}O$ (steam) $\longrightarrow  A + B$


In the equation, A and B are :

chemistry metals reaction of metals reactions of metals chemical properties of metals

  1. $Zn$ and $H _2$

  2. $ZnH _{2}$ and $O _{2}$

  3. $ZnO _{2}$ and $H _{2}$

  4. $ZnO$ and $H _{2}$

Show answer
Correct Option: D
Explanation:

Zinc only when heated replaces hydrogen from steam thus forming oxides.

$Zn(s) +H _{2}O(g) \xrightarrow[\text{Above}\; 400^oC]{\Delta} ZnO(s)+H _2(g)$ .

Thus, the compounds A and B are $ZnO$ and $H _2$.