Question

In the equation, $N{a}_{2}C{O}_3+xHCl\to 2NaCl+C{O}_2+H_{2}O$, the value of $x$ is:

• A. 1
• B. 2
• C. 3
• D. 4

Answer 1

The correct option is B 2

In the given equation there are two chlorines on the product side so need to balance chlorine on left-hand side hence HCl is multiplied by 2

After balancing the given equation, we get $x=2$.

$N{a}_{2}C{O}_3+2HCl\to 2NaCl+C{O}_2+H_{2}O$