Question

An example of autocatalytic reaction is:
A.Decomposition of nitroglycerine
B.Thermal decomposition of $KCl{O_3}$ and $Mn{O_2}$ mixture
C.Breakdown of $^{14}{C_6}$
D.Hydrogenation of vegetable oil using Nickel catalysts

Answer 1

In order to answer this question you must be aware of autocatalytic reaction and its products. Go through its definition and then select the correct option among the four of the given options. Beware of the mechanism otherwise you may land to the wrong conclusion.

Complete Step by step answer: Step 1. In this step we will define the autocatalytic reaction:
Autocatalytic reaction: A type of chemical reaction is said to be autocatalytic if one of the reaction products is also a catalyst for the same or a coupled reaction. Such a reaction is called an autocatalytic reaction.
Step 2. Among the above four options only Decomposition of Nitroglycerine is a type of autocatalytic reaction:
The initial decomposition pathway of Nitroglycerine (NG), the evolution of the main products and the reaction kinetic parameters for the different stages are analyzed. The results show that the main initial decomposition mechanisms of NG are $O - N{O_2}$ bond dissociation and the hydrogen capture reaction of $N{O_2}$ .

So, the correct answer is Option A.

Note: A chemical reaction in which a product (or a reaction intermediate) also functions as a catalyst. In such a reaction the observed rate of reaction is often found to increase with time from its initial value. Nitroglycerin, also known as glyceryl trinitrate (GTN), is a medication used for heart failure, high blood pressure, anal fissures, painful periods, and to treat and prevent chest pain caused by decreased blood flow to the heart or due to the recreational use of cocaine. This includes chest pain from a heart attack.