Match the following:

S.No. Column-I S.No. Column-II
A. Spontaneous P. Digestion of food
B. Rapid Q. Lighting cracker
C. Slow R. Burning phosphours
D. Explosion S. Burning of LPG gas

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A – R, B – S, C – P, D – Q

A – P, B – Q, C – R, D – S

A – Q, B – P, C – S, D – R

A – S, B – R, C – Q, D – P

answer is A.

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Detailed Solution

A) Spontaneous: Material suddenly burns into flame and phosphorus reacts with potassium chlorate to produce large amount of heat.
B) Rapid: LPG gas burns rapidly and produce heat and light.
C) Slow: Digestion food is slow reaction, because it takes few hours time to complete.
D) Explosion: When a cracker is ignited, a sudden reaction takes place with evolution of large amount of gas creates high pressure within the small space it causes explosion.

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