Questions

Force of impact is the force when the objects meet. The speed of the object plays an important role in the generation of force of impact. The laws of physics determine that the force of impact increases with the square of the increase in speed.

Laconic means using only few words in his/her speech or while talking.

In the given options, talkative, wordy and long are all opposite to laconic and brief is the only word which is similar in meaning of laconic.

The stratosphere layer of the atmosphere is very dry.

Hypnology is the study of sleep.

Jairam Thakur was sworn-in as the Chief Minister of Himachal Pradesh on 27th December 2017 after virbhadra Singh. The cabinet, including Thakur, were administered the oath of office and secrecy by Governor Acharya Dev Vrat at the historic Ridge Ground in Shimla, the capital city of Himachal Pradesh.

Jai Ram is the first chief minister from the second largest Mandi district and the 14th chief minister and sixth person to adorn the office of the chief minister.

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.

The description of a data base is called the database schema , which is specified during database design and is not expected to change frequently . A displayed schema is called schema diagram .We call each object in the schema as schema construct.