Which of the following arrangements shows the schematic alignment of magnetic moments of antiferromagnetic substance?
As we learned
The substances which are expected to passes para-magnetism or ferromagnetism on the basis of unpaired electrons but actually, they possess zero net magnetic moments are called anti ferromagnetic substance.
The major product of the following reaction is :
The increasing order of nitration of the following compounds is :
(b) < (a) < (c) < (d)
(a) < (b) < (c) < (d)
(b) < (a) < (d) < (c)
(a) < (b) < (d) < (c)
The reagent(s) required for the following conversion are :
Which of the following will not exist in zwitter ionic form at pH =7 ?
The copolymer formed by addition polymerization of styrene and acrylonitrile in the presence of peroxide is :
Which of the following will most readily give the dehydrohalogenation product ?
The correct match between items of List-I and List-II is :
List - I List - II
(A) Coloured (P) Steam impurity distillation
(B) Mixture of o-nitrophenol (Q) Fractional distillation
(C) Crude Naphtha (R) Charcoal treatment
(D) Mixture of (S) Distillation under reduced pressure
glycerol and sugars
(A) - (R) , (B) - (S) , (C) - (P) , (D) - (Q)
(A) - (R) , (B) - (P) , (C) - (S) , (D) - (Q)
(A) - (R) , (B) - (P) , (C) - (Q) , (D) - (S)
(A) - (P) , (B) - (S) , (C) - (R) , (D) - (Q)
The main reduction product of the following compound with NaBH4 in methanol is :
Which of the following is the correct structure of Adenosine ?
The IUPAC name of the following compound is :
As we learned
Nomenclature of organic compounds -
Longest chain is main chain, branched chain is substituent.
Locant value or position number should be minimum.
IUPAC system of nomenclature
Xenon hexafluoride on partial hydrolysis produces compounds ‘X’ and ‘Y’. Compounds ‘X’ and ‘Y’ and the oxidation state of Xe are respectively :
The decreasing order of bond angles in BF3, NH3, PF3 and is :
H –– N - - - N - - - N
In hydrogen azide (above) the bond orders of bonds (I) and (II) are :
The correct combination is :
As we learned
Weak field Ligand -
These are the ligands which do not pair the electron in inner d-orbital.
For example: etc
Strong Field Ligand -
These are the ligands which pair the electron in inner d-orbital and makes required d-orbitals empty/available.
For example: CO, CN etc
Cl- is weak field ligand CO is strong field ligand
(no pairing of electron)
Identify the pair in which the geometry of the species is T-shape and squarepyramidal, respectively :
A white sodium salt dissolves readily in water to give a solution which is neutral to litmus. When silver nitrate solution is added to the aforementioned solution, a white precipitate is obtained which does not dissolve in dil. nitric acid. The anion is :