Nickel `(Z=28)` combines with a uninegative monodentate ligand `X^(-)` to form a paramagnetic complex `[NiX_4]^(2-)`. The number of unpaired electron(

1 Answer

Answer :

Nickel `(Z=28)` combines with a uninegative monodentate ligand `X^(-)` to form a paramagnetic complex ... C. one, square planar D. two, square planar

Related questions

Description : Nickel (Z=28) combines with a uninegative monodenatate ligands to form a diamagnetic complex `[NiL_(4)]^(2-)`. The hybridisation involved and the numb

Last Answer : Nickel (Z=28) combines with a uninegative monodenatate ligands to form a diamagnetic complex `[NiL_(4)]^(2-)`. The ... dsp^(2)`, one D. `sp^(3)`, zero

Description : Molecular oxygen is said to be paramagnetic. This indicates that molecular oxygen: w) is a gas at room temperature x) forms molecules containing two oxygen atoms y) has an approximate molecular weight of 32 z) has unpaired electrons

Last Answer : ANSWER: Z -- HAS UNPAIRED ELECTRONS

Description : Statement I `[Fe(H_(2)O)_(5)NO]SO_(4)` is paramagnetic Statement II The Fe in `[Fe(H_(2)O)_(5)NO]SO_(4)` has three unpaired electrons .

Last Answer : Statement I `[Fe(H_(2)O)_(5)NO]SO_(4)` is paramagnetic Statement II The Fe in `[Fe(H_(2)O) ... is false D. Statement-1 is false, statement-2 is true.

Description : s-1: `[MnCl_(6)]^(3),[FeF_(6)]^(3-)` and `[CoF_(6)]^(-3)` are paramagnetic having four, five and four unpaired electrons respectively. S-2: Valence bo

Last Answer : s-1: `[MnCl_(6)]^(3),[FeF_(6)]^(3-)` and `[CoF_(6)]^(-3)` are paramagnetic having four, five and ... onn the metal ion. A. TTT B. TFT C. FTF D. TFF

Description : How is paramagnetic character of a compound is related to the no. of unpaired electrons?

Last Answer : Ans. Greater the number of unpaired electrons greater will be the paramagnetic character

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 : Assertion :- Oxidation number of `Ni` in `[Ni(CO)_(4)]` is zero. ltbr. Reason :- Nickel is bonded to neutral ligand, carbonyl.

Last Answer : Assertion :- Oxidation number of `Ni` in `[Ni(CO)_(4)]` is zero. ltbr. Reason :- Nickel is ... is False. D. If both Assertion & Reason are False.

Description : Explain the following : (i) Low spin octahedral complexes of nickel are not known. (ii) The π-complexes are known for transition elements only. (iii) CO is a stronger ligand than NTL, for many metals. -Chemistry

Last Answer : (i) The electronic configuration of Ni is [Ar] 3d8 4s2 which shows that it can only form two types of complexes i.e. square planar (dsp2) in presence of strong ligand and tetrahedral (sp3) in ... more splitting of d-orbitals and moreover it is also able to form π bond due to back bonding.

Description : (a) `[Ti(H_(2)O)_(6)]^(3+)` absorbs light of wavelength 5000Å. Name one ligand which would form a titanium (III) complex absorbing light to lower wave

Last Answer : (a) `[Ti(H_(2)O)_(6)]^(3+)` absorbs light of wavelength 5000Å. Name one ligand which would form a titanium (III) ... ^(3+)" " (iv) [Pd(en)_(2)]^(2+)`

Description : Which molecule/ion among the following cannot act as a ligand in complex compounds ?

Last Answer : Which molecule/ion among the following cannot act as a ligand in complex compounds ? A. `CH_(4)` B. `CN^(-)` C. `Br^(-)` D. `CO`

Description : The number of unpaired electrons present in complex ion `[FeF_(6)]^(3-)` is:

Last Answer : The number of unpaired electrons present in complex ion `[FeF_(6)]^(3-)` is: A. 5 B. 4 C. 6 D. 0

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 : Find the number of unpaired electron in the fully excited xenon atom.

Last Answer : Find the number of unpaired electron in the fully excited xenon atom.

Description : Magnets attract magnetic substances are iron, nickel, cobalt, etc. They can also repel - (1) paramagnetic substances (2) ferromagnetic substances (3) diamagnetic substances (4) non-magnetic substances

Last Answer : (3) diamagnetic substances Explanation: Those materials which when placed in a magnetic field become weakly magnetized in a direction opposite to that of the applied field, are called as diamagnetic materials ... : bismuth, antimony, copper, gold, quartz, mercury, water, alcohol, air, hydrogen etc.

Description : Nickel is a __________ material. (A) Ferromagnetic (B) Diamagnetic (C) Paramagnetic (D) None of these

Last Answer : (A) Ferromagnetic

Description : Nickel as a material of construction (A) Is used as an alloying element for both ferrous & non-ferrous alloys (B) Is paramagnetic below 415° C (its Curie temperature) (C) Diamagnetic (D) Has a body centred cubic (bcc) crystal lattice structure

Last Answer : (A) Is used as an alloying element for both ferrous & non-ferrous alloys

Description : Nickel is a __________ material. (A) Ferromagnetic (B) Semi-conductor (C) Paramagnetic (D) Ferroelectric

Last Answer : (A) Ferromagnetic

Description : For the complex `K_(2)[Cr(NO)(NH_(3))(CN)_(4)],mu=1.73 BM`. (i) Write IUPAC name. (ii) What will be structure ? (iii) How many unpaired electrons are

Last Answer : For the complex `K_(2)[Cr(NO)(NH_(3))(CN)_(4)],mu=1.73 BM`. (i) Write IUPAC name. ... the complex. (vi) What will be the hybridisation of the complex.

Description : What is an incompatible electron ? What is an unpaired electron ?

Last Answer : The electrons in the outermost energy of the element that participate in bonding are called twin or bonding electrons , and the rest are called unpaired electrons or free-pair electrons.

Description : Due to the presence of an unpaired electron, free radicals are:

Last Answer : Due to the presence of an unpaired electron, free radicals are: A. chemically reactive B. chemically inactive C. anions D. cations

Description : Which of the following statements is correct regarding nucleophiles? (a) They have an overall positive charge (b) They have a lone-pair of electrons (c) They have an unpaired electron (d) They have empty orbitals

Last Answer : (b) They have a lone-pair of electrons

Description : How many unpaired electrons are there in the groun state of Al3+? w) 0 x) 1 y) 2 z) 3

Last Answer : ANSWER: W -- 0

Description : Unpaired electrons are present in ground-state ato of: w) Helium x) Calcium y) Oxygen z) Magnesium

Last Answer : ANSWER: Y -- OXYGEN

Description : Which one of the following atoms has two unpaired electrons in its ground state: w) Sodium x) Calcium y) Oxygen z) Aluminum

Last Answer : ANSWER: Y -- OXYGEN

Description : Cis-trans isomerism is found in square planar complexes of molecular formula: (a and b are monodentate ligands)

Last Answer : Cis-trans isomerism is found in square planar complexes of molecular formula: (a and b are monodentate ligands) A. ` ... . `Ma_(2)b_(2)` D. `Mab_(3)`

Description : All the metal ions contain `t_(2g)^(6)e_(g)^(0)` configuaration. Which of the following complex will be paramagnetic ?

Last Answer : All the metal ions contain `t_(2g)^(6)e_(g)^(0)` configuaration. Which of the following complex will be paramagnetic ? ... `[Fe(CN)_(5)(O_(2))]^(-5)`

Description : The presence of air bubble in blood stream is dangerous to life because- (1) Air combines with blood forming a complex (2) The flow of blood increases manifold (3) The flow of blood is obstructed (4) The pressure of blood increases manifold

Last Answer : (3) The flow of blood is obstructed Explanation: The presence of air bubble in blood, known as air embolism occludes blood vessels. The flow of blood is obstructed causing strokes, heart attacks, ... blood from reaching the target organ and cause ischemia. It can lead to heart attack and death.

Description : The presence of air bubble in blood stream is dangerous to life because (1) Air combines with blood forming a complex (2) The flow of blood increases manifold (3) The flow of blood is obstructed (4) The pressure of blood increases manifold

Last Answer : The flow of blood is obstructed

Description : The coating on the plastic tape you use in your cassette players is w) diamagnetic x) paramagnetic y) ferromagnetic z) a permanent magnet

Last Answer : ANSWER: Y -- FERROMAGNETIC

Description : Iron is what type of magnetic material? Is it: w) diamagnetic x) paramagnetic y) ferromagnetic z) non-magnetic

Last Answer : ANSWER: Y -- FERROMAGNETIC 

Description : The Grand Unified Theory of the forces of nature combines three of the four forces. Which force is NOT included? w) gravitational x) electromagnetic y) weak nuclear z) strong nuclear

Last Answer : ANSWER: W -- GRAVITATIONAL

Description : Carbon monoxide is a poisonous gas for one of the following reasons. w) it is a powerful acid anhydride x) it combines with the hemoglobin of the blood y) it depletes the dissolved oxygen in the blood by forming carbon dioxide z) it is a strong oxidizing agent

Last Answer : ANSWER: X -- IT COMBINES WITH THE HEMOGLOBIN OF THE BLOOD 

Description : Giving a suitable example for each, explain the following : (i) Crystal field splitting (ii) Linkage isomerism (iii) Ambidentate ligand -Chemistry

Last Answer : i) Crystal field splitting: It is the splitting of the degenerate energy levels due to the presence of ligands. When ligand approaches a transition metal ion, the degenerate d-orbitals split into two ... the nitrogen atom or one of the oxygen atoms. Example : - SCN thiocyanate, - NCS isothiocyanate

Description : The strong field ligand is "

Last Answer : The strong field ligand is " A. `SCN^(-)` B. `NO_(2)^(-)` C. `I^(-)` D. `S^(2-)`

Description : Ethylene diamine is an example of a ……… ligand:

Last Answer : Ethylene diamine is an example of a ……… ligand: A. monodentate B. bidentate C. tridentate D. hexadentate

Description : Which one is ambidentate ligand?

Last Answer : Which one is ambidentate ligand? A. `SO_(3)^(2-)` B. `CN^(-)` C. `NH_(3)` D. `H_(2)O`

Description : The lone pair of electrons at one of the ring nitrogens in the given amino acid makes a potential ligand, which is important in binding the iron atoms in hemoglobin: (A) Tryptophan (B) Threonine (C) Histidine (D) Serine

Last Answer : Answer : C

Description : Apolipoprotien B-100 acts as (A) Enzyme activator (B) Ligand for receptor (C) Both (A) and (B) (D) None of these

Last Answer : Answer : B

Description : Apolipoprotein A-I acts as (A) Enzyme activator (B) Ligand for receptor (C) Both (A) and (B) (D) None of these

Last Answer : Answer : C

Description : The apolipoprotein which acts as ligand for LDL receptor is (A) B-48 (B) B-100 (C) A (D) C

Last Answer : Answer : B

Description : What is an analyte or ligand ?

Last Answer : The substance whose concentration is to be determined is called as an analyte or ligand.

Description : The bond formed between the transition metal ion and ligand is ?

Last Answer : Co-ordination covalent bond Transitional metal Ions can form complex compounds by. By accepting the lone pair of electrons from ligand

Description : The following are true about the synaptic potential: a. the Na+ and K+ currents occurs simultaneously b. is a graded potential c. the channel is ligand-gated d. the post-synaptic potential is inhibitory when depolarizing

Last Answer : the Na+ and K+ currents occurs simultaneously

Description : G-proteins: a. are activated by the binding of an extracellular ligand to a membrane receptor b. can be mutated in tumour cells c. mediate the action of glucocorticoid hormone d. they are inactivated by cholera toxins

Last Answer : are activated by the binding of an extracellular ligand to a membrane receptor

Description : Denticity of Ethylene diamine ligand is? a) Six b) Two c) Three d) Four

Last Answer : a) Six

Description : Receptors perform the following function/functions: A. Ligand recognition B. Signal transduction C. Both ligand recognition and signal transduction D. Disposal of agonists and antagonists

Last Answer : C. Both ligand recognition and signal transduction

Description : Receptors perform the following function/functions: A. Ligand recognition B. Signal transduction C. Both ligand recognition and signal transduction D. Disposal of agonists and antagonists

Last Answer : C. Both ligand recognition and signal transduction

Description : What is the number of unpaired electrons in carbon atom? -General Knowledge

Last Answer : The answer is '2'

Description : What is the number of unpaired electrons in carbon atom? -General Knowledge

Last Answer : answer:

Description : Number of unpaired electrons in inert gas is

Last Answer : Number of unpaired electrons in inert gas is A. Zero B. 8 C. 4 D. 18