Which one of the following elements reduces NaOH to Na ?

Correct answer: (C) C. NaOH when heated with coke, gets reduced to Na. 6 NaOH+2 C stackrelΔlongrightarrow 2 Na+2 Na_2 CO_3+3 H_2 uparrow Here, C behaves as reducing agent.

Q34 / 160 · AP EAMCET 2012 · Chemistry

Which one of the following elements reduces $\mathrm{NaOH}$ to $\mathrm{Na}$ ?

A
$\mathrm{Si}$
B
$\mathrm{Pb}$
Correct answer
C
$\mathrm{C}$
D
$\mathrm{Sn}$

Solution

$\mathrm{NaOH}$ when heated with coke, gets reduced to Na. $6 \mathrm{NaOH}+2 \mathrm{C} \stackrel{\Delta}{\longrightarrow} 2 \mathrm{Na}+2 \mathrm{Na}_2 \mathrm{CO}_3+3 \mathrm{H}_2 \uparrow$ Here, C behaves as reducing agent.

Hence, the correct answer is option: 'C'.

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