Question

A metal X forms a water soluble salt XNO₃. When an aqueous solution of XNO₃ is added to common salt solution, then a white precipitate of 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 hydrochloric acid .
a) What is metal X ?
b) What is salt XNO₃ ?
c) Name the compound Y ?

Answer 1

◆Here given that metal X in form of nitrate
(XNO3 )

Here common salt =) NaCl

Now considering the reaction,

=) XNO3 + NaCl -------> XCl + NaNO3

here given that metal X is good conductor of electricity..
and also given that it is white precipitate..

so "AgCl" is white precipitate.

=) The metal X is silver (Ag)

=) salt is =) AgNO3

=) The compound Y is =) AgCl
(silver chloride).

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