pBlock ElementsII 1 Question 102
99. Give balanced equations for the following.
(i) Phosphorus reacts with nitric acid to give equimolar ratio of nitric oxide and nitrogen dioxide.
(ii) Carbon dioxide is passed through a concentrated aqueous solution of sodium chloride saturated with ammonia.
(1988, 3M)
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Solution:
- (i) $4 \mathrm{P}+10 \mathrm{HNO}{3}+\mathrm{H}{2} \mathrm{O} \longrightarrow 5 \mathrm{NO}+5 \mathrm{NO}{2}+4 \mathrm{H}{3} \mathrm{PO}_{4}$
(ii) $\mathrm{NaCl}+\mathrm{NH}{4} \mathrm{OH}+\mathrm{CO}{2} \longrightarrow \mathrm{NH}{4} \mathrm{Cl}+\mathrm{NaHCO}{3}$
