In which of the following reactions do five total molecules of reactants produce four total molecules of products? (points : 3) n2 + 3h2 2nh3 sno2 + 2h2 sn + 2h2o 2h2s + 3o2 2so2 + 2h2o 2so2 + o2 2so3

The correct answer is

Explanation:

We are asked a reaction in which five molecules of reactants produce 4 molecules of products.

From the given options:

Here, 1 mole of nitrogen is reacting with 3 moles of hydrogen to produce 2 moles of ammonia. In other words, 4 molecules of reactants produce 2 molecules of product.

Here, 1 mole of tin oxide reacts with 2 moles of hydrogen to produce 1 mole of tin and 2 moles of water. In other words, 3 molecules of reactants produce 3 molecules of product.

Here, 2 moles of hydrogen sulfide reacts with 3 moles of oxygen to produce 2 moles of sulfur dioxide and 2 moles of water. In other words, 5 molecules of reactants produce 4 molecules of product.

Here, 2 moles of sulfur dioxide reacts with 1 mole of oxygen to produce 2 moles of sulfur trioxide. In other words, 3 molecules of reactants produce 2 molecules of product.

Hence, the correct answer is option 3.

c is having 4 valence electrons and is bonded to three hydrogens and one sulphur atom, therefore, the number of bond pair is equal to four. as all the valence electrons are used in forming the bonds so, there is no lone pair left on carbon.

s is having 6 valence electrons and is bonded to one other sulfur atom and one carbon atom, therefore, the number of bond pair is equal to 2. as only two valence electrons are used in forming the bonds so, four electrons are left. therefore, two lone pairs are present on s.