A metal X forms a water soluble salt $X N O_{3}$ . When an aqueous solution of $X N O_{3}$ is added to common salt solution, then a white precipitate fo compound Y is formed along with sodium nitrate solution. Metal X is said to be the best conductor of electricity and it does not evolve hydrogen when put in dilute hydrohloric acid.

(a) What is metal X ?

(b) What is salt $X N O_{3}$ ?

(c) Name the compound Y.

(d) Write the chemical equation of the reaction which takes place on reacting $X N O_{3}$ solution an common salt solution giving the physical states of all the reactants and products.

(e) What type of chemical reaction is illustrated by the above equation ?

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Solution

(a) Silver (Ag)
(b) Silver nitrate ( $A g N O_{3}$ )
(c) Silver chloride ( $A g C l$ )
(d) $A g N O_{3} (a q) + N a C l (a q) ⟶ A g C l (s) + N a N O_{3} (a q)$
(e) Double displacement reaction.

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(a) Silver (Ag) (b) Silver nitrate ( AgNO3) (c) Silver chloride ( AgCl) (d) AgNO3(aq)+NaCl(aq)⟶AgCl(s)+NaNO3(aq) (e) Double displacement reaction.

(a) Silver (Ag)
(b) Silver nitrate ( $A g N O_{3}$ )
(c) Silver chloride ( $A g C l$ )
(d) $A g N O_{3} (a q) + N a C l (a q) ⟶ A g C l (s) + N a N O_{3} (a q)$
(e) Double displacement reaction.