Daily NEET MCQ- August 17, 2022 - NEET MCQ

Oxidation is a process that involves the addition of oxygen to an element or compound or the removal of hydrogen from a compound, an example is of this is the formation of magnesium oxide from magnesium.

Reduction is a chemical process, which involves the addition of hydrogen or an element or compound for the removal of oxygen from a compound. An example of reduction is a chemical reaction;
H₂ + F₂ → 2HF.

Addition of electronegative element or removal of any other electropositive element is also considered as a process that involves oxidation. Here, sulphur is an electronegative element. So the formation of zinc sulphide is an Oxidation reaction.

A scalar quantity is one which only has a magnitude. Examples of scalar quantities are mass, volume, work, energy etc.

Only operations valid for vector with scalars are multiplication and division. A vector can be multiplied or divided by a scalar. Other operations like addition and subtraction are not valid for vectors with scalars.

The resultant vector is the vector which is obtained by the addition or subtraction of two vectors. The resultant vector can either be calculated by using the graphical method or the analytical method.

German Shepherd, Chihuahua, Pug, Poodle, Beagle, Basenji are different breeds of dog. Irrespective of the breed of the dog they belong to the same species i.e. Lupus Familaris.

Genus includes all the related species. Related genera constitute a family. Related families constitute an order. Related orders constitute a class. Related classes constitute a phylum. Related phyla constitute a kingdom.

Potato, Tomato and Brinjal belong to the genus Solanum, family Solanaceae and order Polymonioles. Plant families like Convolvulacae are also included in the order of Polymonioles.

Bats belong to the order of Chiroptera, class of Mammalia, clade of Scrotifera and phylum of Chordate. Human beings also belong to the class of mammalian.