Respuesta :
Answer;
D. NaNO3
Explanation;
The reaction between NaNO3 and HCl will not produce a gas, but form NaCl and HNO3.
The reaction will be;
NaNO3 + HCl → NaCl + HNO3
This shows that no gas is evolved, when NaNO3 and HCl are reacted.
Answer: The correct answer is Option D.
Explanation:
The reaction of HCl with every substance given in the option follows the equations:
- Option A: Al
The reaction of aluminium with hydrochloric acid produces aluminium chloride and hydrogen gas. The equation follows:
[tex]2Al+6HCl\rightarrow 2AlCl_3+3H_2[/tex]
Thus, this substance evolve gas on reaction.
- Option B: Zn
The reaction of zinc with hydrochloric acid produces zinc chloride and hydrogen gas. The equation follows:
[tex]Zn+2HCl\rightarrow ZnCl_2+H_2[/tex]
Thus, this substance evolve gas on reaction.
- Option C: [tex]K_2CO_3[/tex]
The reaction of potassium carbonate with hydrochloric acid produces potassium chloride, water and carbon dioxide gas. The equation follows:
[tex]K_2CO_3+2HCl\rightarrow 2KCl+H_2O+CO_2[/tex]
Thus, this substance evolve gas on reaction.
- Option D: [tex]NaNO_3[/tex]
The reaction of sodium nitrate with hydrochloric acid produces sodium chloride and nitric acid. The equation follows:
[tex]NaNO_3+HCl\rightarrow NaCl+HNO_3[/tex]
Thus, this substance will not evolve gas on reaction.
Hence, the correct answer is Option D.
