Please indicate if the question response is correct or not, by providing the cor
ID: 1047421 • Letter: P
Question
Please indicate if the question response is correct or not, by providing the correct answer.
32. D
34. D
38. C
32. Which statement about the order of a reaction is always true?
A. a first order reaction is also unimolecular.
B. an increase in temperate increased the order of the reaction.
C. the order of a reaction is a positive integer.
D. the order of a reaction is determined by experiment.
34. which statement is not consistent with the commission theory of reaction rates?
A. collisions do not result in chemical reaction if the molecules are not oriented correctly
B. collisions of insufficient energy do not result in chemical reaction
C. collision rates generally exceed reaction rates
D. reaction rates increase in the presence of a catalyst because collision rates are increased
38. consider the structure of dimethyl ether and ethanol. The primary reason that ethanol has the highest boiling point is that ethanol has:
A. a larger mass
B. hydrogen bonding
C. ionic bonding
D. weaker dispersion forces
Explanation / Answer
32. Answer is correct i.e. D
The order of reaction can be determined by experiment.
First order reaction is not always unimolecular.
Order of reaction is independent of temperature.
Order of reaction may be zero, -ve and positive
34. Answer is not correct.
Correct answer is C
Because Collision rates never exceed reaction rates.
38. Answer is not correct.
Correct answer is B
CH3-O-CH3 (dimethyl ether) CH3-CH2-O-H (ethanol)
Due to presence of Hydrogen bonding in ethanol, ethanol has higher boiling point than ether.