Chemical Engineering Answers

What is the IUPAC name of [Co(NH3)3(NO2)3]
A. Trinitrotriamminecobalt(iii)
B. Trinitrotriamminecobalt(iii) ion
C. Trinitrotriamminecobaltate(iii)
D. Trinitrotriamminecobalt(ii)

What is the correct formula of diamminesilver chloride?
A. Ag(NH2)Cl
B. Ag(NH3)Cl
C. [Ag(NH2)2]Cl
D. [Ag(NH3)2]Cl

Potassium ferrocyanide is an example of;
A. Linear
B. Square planar
C. Tetrahedral
D. Octahedral

Ethylene diamine is an example of;
A. Monodentate ligand
B. Bidentate ligand
C. Tridentate ligand
D. Hexadentate ligand

The compound having lowest oxidation state of iron is;
A. [Fe(CO)5]
B. K2FeO4
C. K4Fe(CN)6
D. K3[Fe(CN)6]

According to postulates of Werner's theory for coordination compounds, which of the following is true?
A. Only primary valencies are non-ionizable
B. Primary and secondary valences are non-ionizable
C. Primary valences are ionizable
D. Secondary valencies are ionizable

Which of the following compounds has sp^2 hybridisation?
A. N2O
B. SO2
C. CO
D. CO2

Choose the incorrect statement from the following:
A. Sigma bond is weaker than pi-bond
B. Pi-bond is weaker than sigma bond
C. Sigma bond can be present alone
D. Pi-bond is present along with sigma bond

Which is the correct order for bond dissociation energy in O2, O2^+, O2^- and O2^2-?
A. O2^- >O2^2- >O2^+ >O2
B. O2 >O2^+ >O2^2- >O2^-
C. O2^- >O2^2- >O2 >O2^+
D. O2^+ >O2 >O2^- >O2^2-

Diamagnetic species are those that have paired electrons. Which of the following are diamagnetic?
A. N2^2- and N2
B. N2 and O2^2-
C. O2^2- and O2
D. O2 and N2^2-