The spin-only magnetic moment and crystal field stabilisation energy
[Pd(F)(Cl)(Br)(I)]2−,has n number of geometrical Isomers. Then, the spin-only magnetic moment and crystal field stabilisation energy [CFSE] of [Fe(CN)6]n−6 ,... View Article
Latest Posts
B has a smaller first ionization enthalpy than Be. Consider the following statements:
(i) It is easier to remove 2p electron than 2s electron (ii) 2p electron of B is more shielded from... View Article
The compound that cannot act both as oxidising and reducing agent is
a) H2SO3 b) HNO2 c) H3PO4 d) H2O2 Solution: When the oxidation state is maximum it acts like a strong... View Article
The electronic configuration of bivalent europium and trivalent cerium, are: (Atomic Number : Xe = 54, Ce = 58, Eu = 63)
a) [Xe]4f 7, [Xe]4f 1 b) [Xe]4f 76s2 , [Xe]4f 26s2 c) [Xe]4f 2, [Xe]4f 7 d) [Xe]4f 4, [Xe]4f... View Article
Complex X of composition Cr(H2O)6Cln, has a spin only magnetic moment of 3.83 BM. It reacts with AgNO3 and shows geometrical isomerism. The IUPAC nomenclature of X is
a) Hexaaqua chromium(III) chloride b) Tetraaquadichlorido chromium(III) chloride dihydrate c) Hexaaquachromium(IV) chloride d) Tetraaquadichlorido chromium(IV) chloride dihydrate Solution: p>Spin only... View Article
Which of the following oxides are acidic, basic and amphoteric, respectively?
a) MgO, Cl2O, Al2O3 b) N2O3, Li2O, Al2O3 c) SO3, Al2O3, Na2O d) P4O10, Cl2O, CaO Solution: Non-metallic oxides are... View Article
If enthalpy of atomisation for Br2(l) is x kJ/mol and bond enthalpy for Br2 is y kJ/mol, the relation between them:
a) is x > y b) is x < y c) is x = y d) does not exist Solution:... View Article
If the magnetic moment of a dioxygen species is 1.73 B.M, it may be:
a) O2, O2–, or O2+ b) O2–, or O2+ c) O2 or O2–, d) O2, O2+ Solution: Answer: (b)
The de Broglie wavelength of an electron in the 4th Bohr orbit is:
a) 4πa0 b) 42πa0 c) 8πa0 d) 6πa0 Solution: n=4 Z = 1 , λ= ? Circumference (2πr)= nλ 2πa0n2/z... View Article
Complexes [ML5] of metals Ni and Fe have ideal square pyramidal and trigonal bipyramidal and geometries, respectively. The sum of the 900, 1200 and 1800 L-M-L angles in the two complexes is
Solution: > For trigonal bipyramidal geometry Total number of 1800 L-M-L bond angles = 1 Total number of 900 L-M-L... View Article
NaClO3 is used, even in spacecrafts, to produce O2
NaClO3 is used, even in spacecrafts, to produce O2. The daily consumption of pure O2 by a person is 492... View Article
For an electrochemical cell
For an electrochemical cell The ratio [Sn2+]/[Pb2+] when this cell attains equilibrium is ______. Solution: Anodic half: Sn → Sn... View Article
Two monomers of maltose are:
a. alpha-D-Glucose and alpha-D-Galactose b. alpha-D-Glucose and alpha-D-Glucose c. alpha-D-Glucose and alpha-D-Fructose d. alpha-D-Glucose and alpha-D-Glucose Solution: Maltose is formed... View Article
Preparation of Bakelite proceeds via reactions:
a. Electrophilic substitution and dehydration. b. Electrophilic addition and dehydration. c. Condensation and elimination d. Nucleophilic addition and dehydration Solution:... View Article
An unsaturated hydrocarbon absorbs two hydrogen molecules on catalytic hydrogenation, and also gives following reaction
An unsaturated hydrocarbon absorbs two hydrogen molecules on catalytic hydrogenation, and also gives following reaction; will be: Solution: Answer :... View Article
Kjeldahl’s method cannot be used to estimate nitrogen for which of the following compounds?
a. 3 2 − ≡ b. 6 5 2 c. 6 5 2 d. Solution: Kjeldahl method cannot be used... View Article
Among the following compounds A and B with molecular formula
Among the following compounds A and B with molecular formula C9H18O3, A is having higher boiling point than B. The... View Article
Find The major product [B] of the following sequence of reactions is
Find The major product [B] of the following sequence of reactions is: Answer to this question is option c Explanation:
The major product of the following reactions is:
The major product of the following reactions is: Answer to this question is option d Explanation:
For the following Assertion and Reason, pick the correct option
Assertion: For hydrogenation reactions, the catalytic activity increases from group-5 to group11 metals with maximum activity shown by group 7-9... View Article
