a student was given 5 gram of pale green solid and asked to observe heating it he observed yellow colour gas and a solid was left when zinc is added to the pale green salt colour fates away explain above reactants and products
Answers
Answered by
23
Pale green solid salt can contain Iron in it.
Yellow colour gas evolution is Chlorine.
Hence the required salt Is FeCl3[Iron[III] Chloride]
Thermal decomposition of Iron [III] Chloride salt gives:
2FeCl3 ⇆2Fecl2 +Cl2
Yellow gas chlorine is seen as product.
On adding Zinc to FeCl2 , the green colour of salt fades away by giving Zncl2 salt and Fe is displaced.
Zn(s) +FeCl2(aq) ---->Fe(s) +Zncl2 (aq)
Yellow colour gas evolution is Chlorine.
Hence the required salt Is FeCl3[Iron[III] Chloride]
Thermal decomposition of Iron [III] Chloride salt gives:
2FeCl3 ⇆2Fecl2 +Cl2
Yellow gas chlorine is seen as product.
On adding Zinc to FeCl2 , the green colour of salt fades away by giving Zncl2 salt and Fe is displaced.
Zn(s) +FeCl2(aq) ---->Fe(s) +Zncl2 (aq)
Anonymous:
thanks
Similar questions