Description : A coordination complex of type `MX_(2)Y_(2)`[M=metal ion, X,Y=monodentata ligands ], can have either a tetrahedral of a square planar geometry. The ma
Last Answer : A coordination complex of type `MX_(2)Y_(2)`[M=metal ion, X,Y=monodentata ligands ], can have either a tetrahedral ... 2 and 1 C. 1 and 3 D. 3 and 2
Description : Sp3d2 hybridization of central atom of a molecule would lead to............ geometry. a) square planar b) Tetrahedral c) Trigonal bipyramidal d) Octahedral
Last Answer : d) Octahedral
Description : How many EDTA (lethylendiamine tetra acetic acid) molecules are required to make an octahedral complex with a Ca2+ ion.
Last Answer : EDTA is a hexadentate ligand therefore only one EDTA molecule is required to form octahedral complex.
Description : Which of the following terms denotes the polar molecules or negative ions clustered about a central positive ion? w) ligands x) isomers y) complex ions z) dipoles
Last Answer : ANSWER: W -- LIGAND
Description : The octahedral complex of a metal ion `M^(3+)` with four monodentate ligands `L_(1),L_(2),L_(3) and L_(4)` absorb wavelength in the region of red, gre
Last Answer : The octahedral complex of a metal ion `M^(3+)` with four monodentate ligands `L_(1),L_(2),L_(3) and L_(4)` ... `L_(1) lt L_(2) lt L_(4) lt L_(3)`
Description : How many EDTA molecules are required to make an octahedral complex with a `Ca^(2+)` ion?
Last Answer : How many EDTA molecules are required to make an octahedral complex with a `Ca^(2+)` ion? A. Six B. Three C. One D. Two
Description : Which of the following terms refers to the number of molecules or ions attached to a central metallic atom? w) coordination number x) connection number y) bonding number z) none of these
Last Answer : ANSWER: W -- COORDINATION NUMBER
Description : A yellow coloured crystalline substance gave a colourless gas `X` on reaction with fluorine, which is thermally stable and has octahedral geometry. `X
Last Answer : A yellow coloured crystalline substance gave a colourless gas `X` on reaction with fluorine, which is ... and has octahedral geometry. `X` can be
Last Answer : A yellow coloured crystalline substance gave a colourless gas `X` on reaction with fluorine, which is thermally stable ... `SF_(2)` D. `S_(2)F_(6)`
Description : The coordination number of a central metal atom in a complex is determined by:
Last Answer : The coordination number of a central metal atom in a complex is determined by: A. the number of ... ligands around a metal ion bonded by sigma bonds
Description : Why does a H+ ion attacking a carbon-carbon double bond add to the carbon with the least number of substituents? (a) the reaction is resonance stabilized. (b) the hybrid geometry favors this ... tends to attack stable centers of negative charge. (d) a more stable carbonium ion is generated.
Last Answer : a more stable carbonium ion is generated.
Description : Which of the following statement(s) is/are true concerning cellular ion channels? a. Ion channels are transmembrane proteins that form pores that can conduct ions across the plasma membrane b. ... undergo conformational changes between open states and closed states d. Ion channels can be blocked
Last Answer : Answer: a, b, c, d Ion channels are transmembrane proteins that form pores that can conduct ions across the plasma membrane. Ion channels are formed by membrane-spanning peptides that are arranged ... be blocked by ions or organic compounds that enter the channel, bind there, and occlude the pore
Description : The number of unpaired electrons in `d^(6)`, low spin, octahedral complex is :
Last Answer : The number of unpaired electrons in `d^(6)`, low spin, octahedral complex is : A. 4 B. 2 C. 1 D. 0
Description : What is the molecular geometry of thiocyanate (pron: thie-owe-SIE-a-nate) ion (SCN minus 1)? w) linear x) angular y) tetrahedral z) pyramidal
Last Answer : ANSWER: W -- LINEAR
Description : What is the molecular geometry of the Bromine Tetraflouride ion (B-F-4-minus 1) w) linear x) angular y) tetrahedral z) pyramidal
Last Answer : ANSWER: Y -- TETRAHEDRAL
Description : Crystal field stabilization energy for high spin `d^4` octahedral complex is
Last Answer : Crystal field stabilization energy for high spin `d^4` octahedral complex is A. `-0.6 Delta_(0)` B. `-1. ... `-1.6Delta_(0)+P` D. `-1.2Delta_(0)`
Description : According to the Crystal Field Theory, the energy of `d_(xy)` orbital is lower than `d_(x^(2)-y^(2))` in an octahedral complex because
Last Answer : According to the Crystal Field Theory, the energy of `d_(xy)` orbital is lower than `d_(x^(2)-y^(2))` ... d_(x^(2)-^(2))` orbital is away the ligands.
Description : An octahedral complex of `Co^(3+)` is diamagnetic . The hybridisation involved in the formation of the complex is :
Last Answer : An octahedral complex of `Co^(3+)` is diamagnetic . The hybridisation involved in the formation of the complex is : A. ... `d^(2)sp^(3)` D. `sp^(3)d`
Description : An octahedral complex with molecular composition `M.5NH_(3).Cl.SO_(4)` has two isomers. A and B. The solution A gives a white precipitation with `AgNO
Last Answer : An octahedral complex with molecular composition `M.5NH_(3).Cl.SO_(4)` has two isomers ... isomerism C. coordination isomers D. Geometrical isomerism
Description : Addition of excess aqueous ammonia to a pink coloured aqueous solution of `MCl_(2).6H_(2)O(X)` and `NH_(4)Cl` gives an octahedral complex Y in the pre
Last Answer : Addition of excess aqueous ammonia to a pink coloured aqueous solution of `MCl_(2).6H_(2)O(X)` ... solution is pink D. Z is a tetrahedral complex.
Description : How many isomeric forms are possible for the octahedral complex. `[Rh(en)_(2)(NO_(2))(SCN)]^(+)` ?
Last Answer : How many isomeric forms are possible for the octahedral complex. `[Rh(en)_(2)(NO_(2))(SCN)]^(+)` ?
Description : The crystl field splitting energy for octahedral complex `(Delta_(0))` and that for tetrahedral complex `(Delta_(1))` rae related as :
Last Answer : The crystl field splitting energy for octahedral complex `(Delta_(0))` and that for tetrahedral complex `(Delta_(1) ... ` D. `Deltat=(9)/(4)Delta_(0)`
Description : What is the coordination number of an ion what is the coordination number of the cation (a) Na Cl structure and (b) Cs Cl structure explain the reason for this difference?
Last Answer : The coordination number is six for Na in NaCl.The coordination number is eight for Cs in CsCl. The accepted explanation is that the ionic radii of cesium and chloride are very similar.
Description : When a coordination compound CoCl3.6NH3 is mixed with AgNO3, 3 moles of AgCl are precipitated per mole of the compound. Write (i) Structural formula of the complex (ii) IUPAC name of the complex -Chemistry
Last Answer : i) Complex so formed is: CoCl3.6NH3 + AgNO3 → [Co(NH3)6]Cl3 (ii) IUPAC name of complex is: Hexaamminecobalt (III) chloride
Description : `Co^(2+)(aq.)+SCN^(-) (aq.) to "Complex"(X)` `Ni^(2+)(aq.) +"Dimethylglyoxime" overset(NH_(4)OH) to "Complex"(Y)` The coordination number of cobalt an
Last Answer : `Co^(2+)(aq.)+SCN^(-) (aq.) to "Complex"(X)` `Ni^(2+)(aq.) +"Dimethylglyoxime" overset(NH_ ... (Y) is diamagnetic D. (X) and (Y) both are diamagnetic.
Last Answer : `Co^(2+)(aq.)+SCN^(-) (aq.) to "Complex"(X)` `Ni^(2+)(aq.) +" ... both tetrahedral C. square planar and tetrahedral D. both square planar.
Last Answer : `Co^(2+)(aq.)+SCN^(-) (aq.) to "Complex"(X)` `Ni^(2+)(aq.) +" ... . tetrathiocyanoato-S-cobaltate(III) and bis(dimethylglyoximato) nickel (II).
Description : A complex anion is formed by Osmium ( in some oxidation state ) with ligands ( in proper number so that coordination number of osmium becomes six ). W
Last Answer : A complex anion is formed by Osmium ( in some oxidation state ) with ligands ( in proper number ... ) C. azidopentachloridoosmate(VI) D. None of these
Description : 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
Last Answer : A complex cation is formed by Pt( in some oxidation state ) with ligands ( in proper number ... (ethylenediamine ) dithiocyanate -S- platinum (IV) ion
Description : Homolytic fission of covalent bond between carbon atoms will produce : (a) Two carbonium ions (b) Two molecules (c) Free radicals (d) Carbonium ion and carbanion
Last Answer : Free radicals
Description : pH is defined as the negative logarithm of the hydrogen ion concentration. Comparing a pH 5 and a pH 8 solution, which of the following is true? w) There are 1,000 times more hydrogen ions in ... . z) Cannot tell the difference between these two solutions by pH, since the numbers are so close.
Last Answer : ANSWER: X -- THERE ARE 1,000 TIMES MORE HYDROGEN IONS IN THE PH 5 SOLUTION
Description : Which of the following molecules or ions is NOT formed when K metal reacts with liquid CH3OH? Is it: w) potassium ion x) hydrogen ion y) methoxy ion z) hydrogen molecule
Last Answer : ANSWER: X -- HYDROGEN ION
Description : Which of the following atoms or ions would be the smallest? w) sodium atom x) magnesium atom y) singly charged sodium ion z) doubly charged magnesium ion
Last Answer : ANSWER: Z -- DOUBLY CHARGED MAGNESIUM ION
Description : The theory of interionic attraction attributed to Debye and Hückel: w) was disproved by Arrhenius x) accounts quantitatively for the attraction between ions in dilute aqueous solutions y) does not account for kindered "ion-activity" z) accounts for intra-molecular polar bonds
Last Answer : ANSWER: X -- ACCOUNTS QUANTITATIVELY FOR THE ATTRACTION BETWEEN IONS IN DILUTE AQUEOUS SOLUTIONS
Description : In a body-centered structure for cesium chloride how many nearest neighbor chloride ions surround a cesium ion?
Last Answer : ANSWER: 8
Description : Consider the coordination compound , `[Co(NH_(3))_(6)]Cl_(3)`. In the formation of the complex, the species which acts as the Lewis acid is :
Last Answer : Consider the coordination compound , `[Co(NH_(3))_(6)]Cl_(3)`. In the formation of the complex, the species which ... -)` C. `Co^(3+)` D. `NH_(3)`
Description : The pair of coordination complex exhibiting the same kind of isomerism is .
Last Answer : The pair of coordination complex exhibiting the same kind of isomerism is . A. `[Cr(NH_(3))_(5)Cl]C_(2) and [ ... NO_(3))]Cl and [Pt(NH_(3))_(3)Cl]Br`
Description : In coordination chemistry there are a veriety of methods applied to find out the structure of complexes. One method involves treating the complex with
Last Answer : In coordination chemistry there are a veriety of methods applied to find out the structure of complexes. One method involves ... A. 2 B. 3 C. 4 D. 1
Last Answer : In coordination chemistry there are a veriety of methods applied to find out the structure of complexes. One method involves ... 0` C. `0.0` D. `3.0`
Last Answer : In coordination chemistry there are a veriety of methods applied to find out the structure of complexes. One method ... BM C. 4.9 BM D. 5.9 BM
Last Answer : In coordination chemistry there are a veriety of methods applied to find out the structure of complexes. One method ... BM C. 4.9 BM D. 1.73 BM
Last Answer : In coordination chemistry there are a veriety of methods applied to find out the structure of complexes. One method ... . `[CoBrCl(en)_(2)Cl.H_(2)O`
Description : In the complexes [SbF_(5)]^(2-),sp^(3)d` hybridisation is present. Geometry of the complex is:
Last Answer : In the complexes [SbF_(5)]^(2-),sp^(3)d` hybridisation is present. Geometry of the ... B. Square bipyramidal C. Tetrahedral D. square planar
Description : The number of moles of oxalate ions oxidised by one mole of `MnO_(4)^(-)` ion in acidic medium is :
Last Answer : The number of moles of oxalate ions oxidised by one mole of `MnO_(4)^(-)` ion in acidic medium is : A. `5//2` B. `2//5` C. `3//5` D. `5//3`
Description : The number of octahedral void(s) per atom present in a cubic close-packed structure is (1) 4 (2) 1 (3) 3 (4) 2
Last Answer : 1
Description : Which complex ion is formed when undecomposed AgBr is washed with hypo solution in photography? (Comptt. All India 2013) -Chemistry
Last Answer : Sodium dithiosulphato argentate (I) complex is formed
Description : What concentration of `Ag^(+)` ions will be in equilibrium with a saturated solution containing a precipitate of `Ag_(2)CrO_(4) and CrO_(4)`-ion conce
Last Answer : What concentration of `Ag^(+)` ions will be in equilibrium with a saturated solution containing a precipitate of ... D. `5.9xx10^(-6)` moles per litre
Description : The ease of adsorption of the hydrated alkali metal ions on ion-exchange resins follows the order:
Last Answer : The ease of adsorption of the hydrated alkali metal ions on ion-exchange resins follows the order: A. `K^(+)lt Na + ... (+)lt K^(+)lt Na^(+)lt Li^(+)`