Physical Chemistry MCQ with Answers

Physical Chemistry MCQ with Answers

286) For a reaction 2A → products, it is found that the ratio of the rection doubles if the concentration of A is increased four times, calculate the order of the reaction:

Answer is:

1⁄2

287) In a reaction, the decreases in reactant's concentration is 20% in 20 minutes and 40% in 40 minutes. Calculate the order of the reaction and rate constant:

Answer is:

0

288) Which of the following conditions favours the existence of a substance in the solid state?

Answer is:

Low temperature

289) Which of the following is not a characteristic of a crystalline solid?

Answer is:

Isotropic nature

290) Which of the following is an amorphous solid?

Answer is:

Quartz glass (SiO2)

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