Which is not true about metal carbonyls?
1. Here CO acts as a Lewis base as well as Lewis acid.
2. Here metal acts as Lewis base as well as Lewis acid.
3. Here back bonding takes place.
4. Here back bonding takes place.
A compound that form two stereoisomer is -
(I)
(II)
(III)
(IV)
(1)I only
(2) I and II
(3) III and IV
(4) All of these
Three arrangements are shown for the complex . Which one is wrong statement?
1. I and II are geometrical isomers
2. II and III are optically active isomers
3. I and III are optically active isomers
4. II and III are geometrical isomers
Complexes formed in the following methods are:
(I) Mond's process for purification of nickel
(II) Removal of unreacted AgBr from photographic plate
(III) Removal of lead poisoning from the body
Options are as follows:
is diamagnetic because:
1. Mn metal is paramagnetic in free state
2. Mn is in +1 oxidation state in this complex
3. NO is present as positive ligand
4. All of the above
Which of the following species can act as reducing agent ?
(1)
(2)
(3)
(4)
is a very good absorber for NO, the new compound formed by this process is found to contain number of unpaired electrons:
(1) 4
(2) 5
(3) 3
(4) 6
The CFSE for complex is 18000 . The for will be:
(a) 18000 (b) 16000
(c) 8000 (d) 2000
Which of the following order of CFSE is incorrect?
(b)
(c)
(d)
The -ligand which uses its d-orbital during synergic bonding in its complex compound.
(1)
(2)
(3)
(4)
The inner orbital complex that exhibits geometrical but not exhibit optical isomerism is -
(1)
(2)
(3)
(4)
The hybridization of the complex is:
1.
2.
3.
4. Cannot be predicted
Select incorrect statement among the following about complex :
1. It shows co-ordination isomerism
2. It shows optical activity
3. It shows linkage isomerism
4. IUPAC name of the compound is Pentaaminenitrito-N-chromium (III) tetrathiocyanato-S-zincate(II)
The following complexes are given :
(1)
(2)
(3)
(4)
(5)
(6)
Choose the correct code:
(a) (1),(2) are optically active, (3) is optically inactive
(b) (2) is optically active ; (1), (3) are optically inactive
(c) (4), (5) are coloured and (6) is colourless
(d) (4) is coloured and (5),(6) are colourless
Which of the following complex compound exhibits cis-trans isomerism?
1.
2.
3.
4. All of the above
The ratio of cis and trans-isomers of the complex is:
(1) 5:3
(2) 2:1
(3) 7:3
(4) 3:1
is a diamagnetic complex of Pd(II). How many total isomers are possible of analogous paramagnetic complex of Ni(II)?
1. Zero
2. 1
3. 2
4. 3
Select the correct statement about given square planar complex
(1) It has no geometrical isomer
(2) It is optically active because square planar complex have plane of symmetry
(3) It is optically inactive because square planar complex have plane of symmetry
(4) It is optically active because it hass symmetric carbon
How many geometrical isomers are possible or
(a) 2 (b) 3 (c) 4 (d) 6
Total number of stereisomers of are:
(1) 4
(2) 3
(3) 6
(4) 2
Match List-I with List-II and select the correct answer using the codes given below:
List-I List-II
(Ion involved) (agent)
(i) (A) Sodium thiosulphate
(ii) (B) Sodium nitroprusside
(iii) (C) Ammonia
(iv) (D) Dimethylglyoxime
(i) (ii) (iii) (iv)
(1) C A D B
(2) D C A B
(3) D C B A
(4) D A C B
The correct IUPAC name among the following is:
1. | Tris(acetylacetonato)iron(III) chloride |
2. | Hexachloroplatinum(IV) tetraamminedicyanoplatinate(IV) |
3. | Amminebromochloromethylamineplatinum(II) |
4. | cis-dichloro(ethylenediamine) platinum(II) |
A complex cation is formed by Pt (in some oxidation state) with ligands (in proper number so that coordination number of Pt becomes six). Which of the following can be its correct IUPAC name?
(1) DiammineethylenediaminedithiocyanatoS-platinum (II)
(2) DiammineethylenediaminedithiocyanatoS-platinate (IV) ion.
(3) DiammineethylenediaminedithiocyanatoS-platinum (IV) ion.
(4) Diamminebis (ethylenediamine) dithiocyanatoS-platinum (IV) ion.
The EAN of metal atoms in respectively are :
1. 34, 35
2. 34, 36
3. 36, 36
4. 36, 35
Among complexes the hybridisation states of Ni atom are respectively.
(A)
(B)
(C)
(D)
Amongst :
1. are paramagnetic is diamagnetic.
2. are paramagnetic is diamagnetic.
3. are diamagnetic is paramagnetic.
4. are paramagnetic is diamagnetic.
The 'brown ring' formed at the junction of two layers in the test of nitrate is due to the formation of a complex ion, Which of the following statemens are correct for this complex [u=3.87 B.M.)
(i) Oxidation state of Fe is +1 and NO exists as
(ii) The complex ion is in octahedral geometry as attained by hybridisation.
(iii) The complex is paramagnetic and has three unpaired electrons due to transfer of electron from NO to
(iv) The complex is in octahedral geometry as attained by hybridisation.
(v) The brown colour of the complex is attributed to d-d transition of electron.
(1) (i), (ii) and (v)
(2) (iii), (iv) and (v)
(3) (i), (ii) and (iii)
(4) (ii), (iii) and (v)
The incorrect statement among the following is:
1. is a colourless compound.
2. is a colourless compound.
3. is a coloured compound..
4. is a colourless compound.
Identify the correct order of wavelength of light absorbed for the following complex ions.
I II III IV
(1) III>I>IV>II
(2) II>IV>I>III
(3) III>I>II>IV
(4) I>III>IV>II