Question

A single displacement reaction is represented below. PQ + R ----> PR + Q Which of the following is true about the reactants and products? Option | Nature of R in product | Stability of PR as compared to PQ A cation more stable B cation less stable C anion more stable D anion less stable (a) A (b) B (c) C (d) D

Answer 1

In the single displacement reaction, R operates as a cation and forms a new compound with P to generate PR, which is more stable than the original compound PQ. Consequently, the correct option is A.

Step-by-step explanation:

In the given single displacement reaction (PQ + R ----> PR + Q), the nature of R is transformed. In the reactants phase, R is a standalone entity, whereas in the products phase, R combines with P to form PR. This implies that R operates as a cation in the reaction as it gets attracted and bonded with the element P.

When it comes to stability, we note that in a single displacement reaction, the reaction progresses if the replacing element is more reactive. Therefore, since the reaction has occurred to make PR, it implies that PR is more stable compared to the original compound PQ. Putting these observations together, we find that Option A (R is a cation and PR is more stable than PQ) is the true statement about the reactants and products.

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