CHEM 2C MT2

Which of the following metal ions has a d6 electron configurations?

a. Mn2+

b. Cr2+

C. Fe3+

d. Co 3+

Co 3+

Which of the following metal ions has a d8 electron configuration?

a. Zn2+

b. Ni2+

c. Cr3+

d. Cu+

Ni2+

Which of the following coordination compounds will form a precipitate when treated with an aqueous solution of AgNO3?

a. Cr(NH3)3Cl3

b. [Cr(NH3)6]Cl3

c. [Cr(NH3)5Cl]SO4

d. Na3[Cr(CN)6]

e. Na3[CrCl6]

[Cr(NH3)6]Cl3

Which of the following are structural Isomeres

I. Coordination Isomers

II. Linkage Isomers

III. Geometric Isomers

IV. Optical isomers

Coordination isomers and Linkage Isomers

For which order reaction is the half- life of the reaction proportional to 1/k (where K is the rate constant)?

a. Zero order

b. First order

C. second order

d. All of these

All of these

For a first order reaction aA→ products, the first half-life is 20 minutes, what is the second half life?

a. 10 minutes

b. 20 minutes

c. 40 minutes

40 minutes

For a zero order reaction aA→ products, the first half-life is 20 minutes, what is the second half life?

a. 10 minutes

b. 20 minutes

c. 40 minutes

10 minutes

At a particular temperature, the half life at zero- order reaction is 20 minutes, how long will it take for the reactant concentration to be depleted by a factor of 8?.

a. 20 min

b. 35 min

c. 60 min

d. 140 min

e. 160 min

35 minutes

The rate determining step of a multi step reaction can best be described as?

the slowest step of the reaction

proposed that TM metal ions have 2 type of valence

Alfred Warner