Chemistry - Complete P-block Question with Solution | TestHub

How many of the following reagent/s will liberate at least one oxide of nitrogen as a product ?

(i)$\mathrm{Ag}+$ conc. ${\mathrm{HNO}}_3$

(ii) $\mathrm{Sn}+$ dil., ${\mathrm{HNO}}_3(20\%)$

(iii) $\mathrm{Cu}+$ conc. ${\mathrm{HNO}}_3$

(iv) $\mathrm{C}+$ conc. ${\mathrm{HNO}}_3$

(v) $\mathrm{Zn}+$ conc, ${\mathrm{HNO}}_3$

(vi) $\mathrm{Zn}+$ dil. ${\mathrm{HNO}}_3(20\%)$

(vii) ${\mathrm{P}}_4+$ conc. ${\mathrm{HNO}}_3$

(viii) ${\mathrm{S}}_8+$ conc. ${\mathrm{HNO}}_3$

(ix) $\mathrm{Cu}+$ dil. ${\mathrm{HNO}}_3(20\%)$