Questions

"National Volunteer Day" & "International Peace Day" are observed on 21st september every year.

The only bird that can rotate its head to 270 degrees is OWL.

The order of basicity for primary, secondary and tertiary amines are:

Secondary > Primary > Tertiary > NH3

* Amines are basic in nature as they have lone pair of electrons on nitrogen. Therefore, they have a strong tendency to donate this lone pair of electrons to electron acceptors.

* The stability of conjugate acids formed is dependent on the extent of H-bonding,and greater the number of H-atoms on N more stable is the conjugate acid.

* The conjugate acid of primary amine is the most stable with greater number (3) of H-bonds than > Secondary > tertiary. But primary amines are less basic than secondary as the electron density on the N atom is less and lone pair of electrons are not readily available for protonation.

* The two opposing factors i.e. the stability of conjugate acids formed and ease of availability of electrons for Protonation, balance each other in case of secondary amines and it is most basic.

It is one of the operation of Log Shipping

On 22nd September 1921, Gandhi made a momentous decision to change his attire. From the elaborate Gujarati attire, he decided on a simple dhoti and shawl. This epoch-making decision was taken by Gandhiji in Madurai after he decided that he has to work for and with the with the poor people of India and how can he identify with them if he wears different clothes from them.

I am black gold i.e charcoal. It is black when it is not used and when using it is red due to fire and when used it is in grey color as it becomes ash.