1.A schrock type catalyst for alkyne metathesis may contain
= high oxidation state tungsten and W≡CR unit
2.One of the following ligands is chiral Which is it
= Me2PCHMeCH2PMe2
3.Ziegler Natta catalysis is associated with
Ans)alkene polymerization
4.The oxidation of SO2 to so3
= Is thermodynamically favorable but is slow under ambient condition
5.What would be the main reason for replacing the pph3 ligand in a catalyst by
P(C6H4SO3-)3 ligand
= To increase the water solubility of catalyst
6.Ti +2 is purple in colour while Ti+4 is colourless because
= Ti +2 has 3d2 configuration
7.Mno4 - is a Deep Purple in colour whereas Reo4 is colourless this is due to Greater
energy required for
= Charge transfer from O2 to Re compared to O2 to Mn
8.The visible spectra of salts of following complexes are measured in aqueus solution
for which Complex would the spectrum contain absorption with the highest E Max
values?
= Mno4
9.How many microstates are possible for a d2 configuration,including both weak and
strong field limits?
= 10
10.The d-d transition in an octahedral N X 62 + complexes are
= Laprote Forbidden but spin allowed
11.why does the absorption spectrum of Aquarius {Ti(H2O)6}+3 exhibit a broad band
with a shoulder
= {Ti(H2O)6}
+3 is partly reduce to{Ti(H2O)6}+2 in aqu solution
12.band with for electronic spectra are commonly found to be the order of..
= 1000-3000 cm-1
13.spin selection rules says
= ∆𝑆 = 0
14.the spin transition are forbidden if
= ∆𝑆 ≠ 0
15.d-d transition are
= Laporte forbidden
16.{CO(NH3)5CL}+2 which is octrahedral but both are colored due to
= BOTH(A&B)
17.Laporte allowed transition are
= High intense
18.weak octahedral field complex{MN(H2O)6}+2 showsd-dtransition
= spin forbidden
19.the set for F Spectroscopy term in octahedral field is
= A2g + T1g + T2g
20.which when is the energy term for d3,d7
= 4p, 4f
21.the ground state term for d1 octahedral metal ion is
= 2T2g
22.the ground state term for d2 octahedral metal ion is
= 3T1g(F)
23.the ground state term for d3 octahedral metal ion is
= 4 A2g(F)
24.the ground state term for{V(H2O)6}+3 and {Ni(H2O)6}+2 are respectively
= 3T1g(F),3A2g(F)
25.orgel diagram cannot be used
= both A&B
26.the ground state term for d6 octahedral metal ion is
= 5T2g
27.the ground state term for d7 octahedral metal ion is
= 4T1g(F)
28.the ground state term for d8 octahedral metal ion is
= 3A2g(F)
29.the ground state term for d9 octahedral metal ion is
= 2Eg
30.the ground state term for d4 octahedral metal ion is
= 5Eg
31.the electronic spectra in the visible range spin is =
= 12500-25000 cm-1
32.which of the following transitions are of weak intensities and lie in the visible
region?
= n-n*
33.arrange the various electronic transition in the order of increasing energy
= N to pi star less than pi to pi star less than n to sigma star less than 𝜎 to 𝜎∗
34.which of the following is an application of electronic spectroscopy
= All of the mentioned
35.which of the following compound is expected to be colored?
= CuF2
36.which one of the following ions is colourless?
= Cu+
37.the colour of zinc sulphide is
= White
38.an aqua solution of cocl2 on addition of excess of concentration HCL turns
blue due to the formation of
= [CoCl4]2-
39.in which region of the the electromagnetic spectrum does an absorption at
600 NM come ?
= Visible
40.lycopene (LEMDA MAX=469 nm) in tomatoes what colour of light does
lycopene absorb?
= Blue
41.why does the absorption spectrum of Aqueous [Ti(OH2)6]
3+ exhibit a
broadband with shoulder?
= The excited state of [Ti(OH2)6]
3+undergoes aJahn-teller distortion
42.the d-d transition in octahedral [Nix6]2+complex are
= Laporate forbidden but spin allowed
43.how many microstate are possible a D2 configuration including both weak
and strong field limits?
= 45
44.a d1 electron configuration correspond to which of the following terms?
= 2D
45.colour in transition metal compound is attributed to
= Incomplete (n-1) d sub shell
46.which of the following ions do not form colored complex?
= Chromium (cr)(VI)
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