question_answer

                                                Discuss all the chemical properties of (a) Metals and (b) Non-metals.   

Answer:

   

(a) Chemical properties of metals:

(i) Metals react with oxygen to produce oxides which are alkaline in nature. e.g.,

\[\begin{align}   & 2Mg\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,+\,\,\,\,\,\,\,\,{{O}_{2}}\,\,\,\,\,\,\,\,\,\to \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,2MgO \\  & Magnesium\,\,\,\,\,\,Oxygen\,\,\,\,\,\,\,\,\,\,\,Magnesium\,\,Oxide \\ \end{align}\]

(ii) Metallic oxides produce bases by reacting with water differently.

\[\begin{align}   & \,\,\,\,\,N{{a}_{2}}O\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,+\,\,\,\,\,\,\,{{H}_{2}}O\,\,\to \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,2NaOH \\  & Sodium\,\,oxide\,\,\,\,\,\,Weter\,\,\,\,\,\,\,\,\,\,\,Sodium\,\,hydroxide\, \\ \end{align}\]

(iii) Metals react with acid to produce hydrogen gas.

\[\begin{align}   & 2HCI\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,+\,\,\,\,2Na\,\,\,\,\,\,\to \,\,2NaCI\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,+\,\,\,\,\,{{H}_{2}} \\  & Hydrochloric\,\,acid\,\,\,\,\,\,Sodium\,\,\,\,\,\,Sodium\,\,chloride\,\,\,\,Hydrogen\, \\ \end{align}\]

(iv) More reactive metals displace the less reactive metals from their compounds in an aqueous solution.

\[\begin{align}   & CuS{{o}_{4}}\,\,\,+\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,Zn\,\,\,\,\,\,\,\,\,\,\,\,\to \,\,\,\,\,\,ZnS{{O}_{4}}\,\,\,\,\,\,\,\,\,\,+\,\,\,\,\,\,\,Cu\, \\  & Copper\,\,Sulpahte\,\,\,\,\,\,Zinc\,\,\,\,\,\,\,Zinc\,Sulphate\,\,\,\,\,\,\,Copper\, \\ \end{align}\]

(b) Chemical properties of Non-metals:

(i) Non-metals react with oxygen to produce oxides which are acidic in nature.

\[\begin{align}   & \,\,\,\,\,\,\,\,S\,\,\,\,\,\,\,\,+\,\,\,\,\,\,\,\,{{O}_{2\,}}\,\,\,\,\,\,\,\to \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,S{{O}_{2}} \\  & Sulphur\,\,\,\,\,\,Oxygen\,\,\,\,\,\,\,\,\,Sulphur\,dioxide\, \\ \end{align}\]

\[\begin{align}   & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,S{{O}_{2}}\,\,\,\,\,\,\,\,\,\,\,+\,\,\,{{H}_{2}}O\,\,\,\,\to \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{{H}_{2}}S{{O}_{3}} \\  & Sulphur\,dioxide\,\,\,\,Water\,\,\,\,\,\,\,\,Sulphurous\,\,Acid \\ \end{align}\]

(ii) Non-metals do not react with water.

(iii) Non-metals do not show displacement reactions.