Chemistry-
General
Easy
Question
Read the following graph and gives the answer for the following questions
The dip in the boiling point of manganese in 3d series is due to:
- less delocalisation of valence electrons owing to extra stable half filled configuration
- smaller size of atom
- less electronegativity of atom
- all of these
The correct answer is: less delocalisation of valence electrons owing to extra stable half filled configuration
Related Questions to study
chemistry-
S1 : Covalent and ionic radii of Nb and Ta are almost the same
S2 : Ionisation energies of transition elements decrease with increase in atomic number in a given group
S3 : Iodide of Millon's base is believed to have the structure
S4 : Yellow colour of 
is due to d-d transition
S1 : Covalent and ionic radii of Nb and Ta are almost the same
S2 : Ionisation energies of transition elements decrease with increase in atomic number in a given group
S3 : Iodide of Millon's base is believed to have the structure
S4 : Yellow colour of is due to d-d transition
chemistry-General
chemistry-
What is the final product (B) of this sequence :
What is the final product (B) of this sequence :
chemistry-General
chemistry-
Consider the following sequence of reactions
The products (A) and (B) are, respectively,
Consider the following sequence of reactions
The products (A) and (B) are, respectively,
chemistry-General
chemistry-
Consider the following reaction.
The product (A) is
Consider the following reaction.
The product (A) is
chemistry-General
chemistry-
Hofmann rearrangement
In the Hofmann rearrangement an unsubstituted amide is treated with sodium hydroxide and bromine to give a primary amine that has one carbon lesser than starting amide. General reaction.
Mech :
If the migrating group is chiral then its configuration is retained. Electron releasing effects in the migrating group increases reactivity of Hofmann rearrangement
Hofmann rearrangement
In the Hofmann rearrangement an unsubstituted amide is treated with sodium hydroxide and bromine to give a primary amine that has one carbon lesser than starting amide. General reaction.
Mech :
If the migrating group is chiral then its configuration is retained. Electron releasing effects in the migrating group increases reactivity of Hofmann rearrangement
chemistry-General
chemistry-
Hofmann rearrangement
In the Hofmann rearrangement an unsubstituted amide is treated with sodium hydroxide and bromine to give a primary amine that has one carbon lesser than starting amide. General reaction.
Mech :
If the migrating group is chiral then its configuration is retained. Electron releasing effects in the migrating group increases reactivity of Hofmann rearrangement
Arrange the following amides according to their relative reactivity when react with Br2 in excess of strong base
I) 
II) 
III) 
IV) <img src="https://mycourses.turito.com/tokenpluginfile.php/c161933dbfaab094c54655ab71e9b8f0/1/question/questiontext/582432/1/1074906/Picture715.png" alt="" width="173" height="78"
Hofmann rearrangement
In the Hofmann rearrangement an unsubstituted amide is treated with sodium hydroxide and bromine to give a primary amine that has one carbon lesser than starting amide. General reaction.
Mech :
If the migrating group is chiral then its configuration is retained. Electron releasing effects in the migrating group increases reactivity of Hofmann rearrangement
Arrange the following amides according to their relative reactivity when react with Br2 in excess of strong base
I)
II)
III)
IV) <img src="https://mycourses.turito.com/tokenpluginfile.php/c161933dbfaab094c54655ab71e9b8f0/1/question/questiontext/582432/1/1074906/Picture715.png" alt="" width="173" height="78"
chemistry-General
chemistry-
Hofmann rearrangement
In the Hofmann rearrangement an unsubstituted amide is treated with sodium hydroxide and bromine to give a primary amine that has one carbon lesser than starting amide. General reaction.
Mech :
If the migrating group is chiral then its configuration is retained. Electron releasing effects in the migrating group increases reactivity of Hofmann rearrangement
Which of the following compound(s) cannot give Hofmann rearrangement :
Hofmann rearrangement
In the Hofmann rearrangement an unsubstituted amide is treated with sodium hydroxide and bromine to give a primary amine that has one carbon lesser than starting amide. General reaction.
Mech :
If the migrating group is chiral then its configuration is retained. Electron releasing effects in the migrating group increases reactivity of Hofmann rearrangement
Which of the following compound(s) cannot give Hofmann rearrangement :
chemistry-General
physics-
A cuboid ABCDEFGH is anisotropic with 
. Coefficient of superficial expansion of faces can be
A cuboid ABCDEFGH is anisotropic with . Coefficient of superficial expansion of faces can be
physics-General
chemistry-
Statement - 1 : The base catalysed hydrolysis of easter order is
1) CH3 – COOCH3 > CH3COOC2H5 > CH3 – COOCH(CH3)2
2) 
Statement - 2 : 
Th is sterically as well as electronically controlled reaction.
Statement - 1 : The base catalysed hydrolysis of easter order is
1) CH3 – COOCH3 > CH3COOC2H5 > CH3 – COOCH(CH3)2
2)
Statement - 2 : Th is sterically as well as electronically controlled reaction.
chemistry-General
chemistry-
Final product is
Final product is
chemistry-General
chemistry-
Product ‘W’ is :–
Product ‘W’ is :–
chemistry-General
chemistry-
X, Y are
X, Y are
chemistry-General
chemistry-
chemistry-General
chemistry-
chemistry-General
chemistry-
What will be the most probable product when compound ‘X’ is treated with two equivalents of NaOH,
What will be the most probable product when compound ‘X’ is treated with two equivalents of NaOH,
chemistry-General
