Multiple Choice
Identify the ion that is responsible for the green colour in emeralds.
A) Cr+3
B) Cr+4
C) Cr+5
D) Cr+6
E) Cr+7
Correct Answer:
Verified
Correct Answer:
Verified
Q7: Identify the transition metal that is used
Q8: How many unpaired electrons would you expect
Q10: How many d electrons are there in
Q12: Match the following.<br>-mer-fac<br>A)[Cr(en)<sub>3</sub>]<sup>3+</sup><br>B)[Zn(NH<sub>3</sub>)<sub>2</sub>Cl<sub>2</sub>]Br<sub>2 and </sub>[Zn(NH<sub>3</sub>)<sub>2</sub>Br<sub>2</sub>]Cl<sub>2</sub><br>C)[Ni(CN)<sub>2</sub>(OH)<sub>2</sub>]<sup>2-</sup><br>D)[Cr(NH<sub>3</sub>)<sub>3</sub>(CO)<sub>3</sub>]<sup>3+</sup><br>E)[Cu(SCN)<sub>4</sub>]<sup>3- </sup>and<sup> </sup>[Cu(NCS)<sub>4</sub>]<sup>3-</sup>
Q13: Identify the ion that is responsible for
Q14: Match the following.<br>-cis-trans<br>A)[Cr(en)<sub>3</sub>]<sup>3+</sup><br>B)[Zn(NH<sub>3</sub>)<sub>2</sub>Cl<sub>2</sub>]Br<sub>2 and </sub>[Zn(NH<sub>3</sub>)<sub>2</sub>Br<sub>2</sub>]Cl<sub>2</sub><br>C)[Ni(CN)<sub>2</sub>(OH)<sub>2</sub>]<sup>2-</sup><br>D)[Cr(NH<sub>3</sub>)<sub>3</sub>(CO)<sub>3</sub>]<sup>3+</sup><br>E)[Cu(SCN)<sub>4</sub>]<sup>3- </sup>and<sup> </sup>[Cu(NCS)<sub>4</sub>]<sup>3-</sup>
Q16: Which of the following compounds can exhibit
Q29: What is the difference between a weak-field
Q71: Name the following: [Ni(NH<sub>3</sub>)<sub>3</sub>(H<sub>2</sub>O)<sub>3</sub>]Cl<sub>2</sub><br>A) nickel(II) trihydrotriamminechloride<br>B) nickel(I)
Q78: Which ion would you expect to have