Four reactions are given below:(i) 2Li + 2H_2 | vedclass

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(B) Reaction $(i)$ and $(ii)$ are correct as alkali metals react with water to form hydroxides and hydrogen gas.Reaction $(iv)$ is correct as sodium n

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$(iii)$

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(B) Reaction $(i)$ and $(ii)$ are correct as alkali metals react with water to form hydroxides and hydrogen gas.Reaction $(iv)$ is correct as sodium nitrate decomposes to sodium nitrite and oxygen on heating.Reaction $(iii)$ is incorrect. Lithium nitrate,unlike other alkali metal nitrates,decomposes to form lithium oxide,nitrogen dioxide,and oxygen:$4LiNO_3 \xrightarrow{\Delta} 2Li_2O + 4NO_2 \uparrow + O_2 \uparrow$.

Four reactions are given below:
$(i)$ $2Li + 2H_2O \to 2LiOH + H_2$
$(ii)$ $2Na + 2H_2O \to 2NaOH + H_2$
$(iii)$ $2LiNO_3 \xrightarrow{\text{Heat}} 2LiNO_2 + O_2$
$(iv)$ $2NaNO_3 \xrightarrow{\text{Heat}} 2NaNO_2 + O_2$
Which of the above,if any,is wrong?

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Four reactions are given below:$(i)$ $2Li + 2H_2O \to 2LiOH + H_2$$(ii)$ $2Na + 2H_2O \to 2NaOH + H_2$$(iii)$ $2LiNO_3 \xrightarrow{\text{Heat}} 2LiNO_2 + O_2$$(iv)$ $2NaNO_3 \xrightarrow{\text{Heat}} 2NaNO_2 + O_2$Which of the above,if any,is wrong?