Question

number of electrons transferred in the combustion of one mol of ethane is
1)14 mol
2)12mol
3)8mol
4)6mol

Answer 1

Answer:

18mol is the number of electrons

Answer 2

Answer:

The Correct Answer is Option (4): 6 mol

Explanation:

Combustion, often known as burning, is a high-temperature exothermic redox chemical reaction in which a fuel reacts with an oxidant, usually atmospheric oxygen, to generate oxidised, often gaseous products in a mixture known as smoke.

Given below is the reaction for the 2 moles of ethane:

$2C_{2}H_{6} + 7O_{2} => 4CO_{2} + 6H_{2}O + Heat$

Here 12H atoms were transferred.

Now for single mole of ethane the reaction will be:

$C_{2}H_{6} + 7/2 O_{2} => 2CO_{2} + 3H_{2}O + Heat$

Here, 6H atoms are transferred.

The number of electrons transferred in the combustion of one mol of ethane is 6 mol.