Question

16. The following scenario illustrates the significance of limiting reagents. In
order to assemble a car, 4 tires and 2 headlights are needed (among other
things). In this example, imagine that the tires and headlights are
reactants while the car is the product formed from the reaction of 4 tires
and 2 headlights. If you have 20 tires and 14 headlights, how many cars
can be made? With 20 tires, 5 cars can be produced because there are 4
tires to a car. With 14 headlights, 7 cars can be built (each car needs 2
headlights). Although more cars can be made from the headlights
available, only 5 full cars are possible because of the limited number of
tires available. In this case, the headlights are in excess. Because the
number of cars formed by 20 tires is less than number of cars produced
by 14 headlights, the tires are the limiting reagent (they limit the full
completion of the reaction, in which all of the reactants are used up).
Based on above answer the following questions:
(i)What is limiting reagent?
(1)
(ii)Choose the correct answer: (1)
Assertion: The reactant which is present in larger amount limits the amount of
product formed is called limiting reagent.
Reason: Amount of product formed does not depend upon the amount of
reactants taken.​

Answer 1

The following scenario illustrates the significance of limiting reagents. In order to assemble a car, 4 tires and 2 headlights are needed (among other things). ... With 20 tires, 5 cars can be produced because there are 4 tires to a car. With 14 headlights, 7 cars can be built (each car needs 2 headlights).