2NaOH + Zn gives you Na2ZnO2 + h2. Why?? View Solution. Q4

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In the reaction, Zn + NaNO3 + NaOH — Na ZnO2 + NH3 + H2O The molar coefficients of Zn and NaNO, are (a) 1 and 4 respectively (b) 4 and 1 respectively (C) 1 and 8 respectively (d) 8 and 1 respectively

When nitrobenzene is reduced with a metal and acid (Sn/HCl, Zn/HCl etc.), which of the following product(s) is obtained?

None of the given option is correct. Zn reacts with sodium hydroxide to form sodium zincate and the liberation of hydrogen gas occurs. The balanced equation is , Z n + 2 N a O H → N a 2 Z n O 2 + H 2. So option D is correct.

Excess of sodium hydroxide reacts with zinc to form sodium zincate along with liberation of hydrogen.

$$\text{When zinc react with}$$ $$ NaOH $$ $$\text{the following reaction takes place :-}$$ $$ 2NaOH + Zn \rightarrow Na_2ZnO_2 + H_2 $$ $$\text{Hydrogen gas is evolved with the formation of the corresponding salt}$$.

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Zinc reacts with sodium hydroxide to produce zincate sodium and hydrogen.

When NaOH reacts with N O 2, the products obtained are N a N O 2 and N a N O 3 2 N a O H + 2 N O 2 → N a N O 2 + N a N O 3 + H 2 O From this reaction, which nature of N O 2 can we conclude?