Washing soda is sodium carbonate Na2CO3, occurs as crystalline heptahydrate which on heating looses its water to form anhydrous sodium carbonate.... View Article
Answer: Nitrobenzene is reduced to aniline by Sn and concentrated HCl. Instead of Sn, Zn or Fe also can be used. Aniline salt is given from this... View Article
The steric number of central atom of a linear molecule is two. It has two bonded atoms and zero lone pair. All the molecules have two bonded... View Article
Net attendance ratio is the total number of children in the age group of 6-10 attending school as a percentage of total number of children in the... View Article
In winter season we prefer woollen clothes because the air will be trapped more in those. We already know that air is a bad conductor of heat it... View Article
The CPU reads data and instructions from memory, and then stores the results of computations in main memory. RAM is the main memory, which stands... View Article
As per the Constitution of India the President is the supreme power and without his/her approval and signature no law can come into existence.... View Article
Answer: A flower has four whorls; calyx, corolla, androecium and gynoecium. These are attached to the swollen terminal of the pedicel called the... View Article
The formula to calculate the sum of ‘n’ natural numbers. S = n⁄2 (a + L) “S” is the sum of the arithmetic sequence, “a” as the first term, “d”... View Article
A leap year is a calendar year containing one additional day added to keep the calendar year synchronized with the astronomical or seasonal year.... View Article
Dead burnt plaster is anhydrous calcium sulphate CaSO4. It is known as dead burnt because, when moistened with water it does not set like plaster... View Article
The strength of a force is expressed by its magnitude. The magnitude of a force is expressed in the SI unit of force called Newton. 1 Newton is... View Article
Auguste Comte is considered as the father of sociology. Sociology is the application of scientific method in the study of the relationship... View Article
Maruti Udyog Limited is an example of the joint sector industry. Joint Sector Industries Joint sector industries are owned and operated by... View Article
When gypsum is heated at 373 K, it loses its water of crystallization or all the water molecules and becomes calcium sulphate hemihydrate. Gypsum... View Article
Charge moving with uniform velocity produce an Electromagnetic field. A moving charged particle produces a magnetic field. This magnetic field... View Article
Graphical techniques offer more flexible and options compared to other traditional methods in design. One of the advantage is that the ability of... View Article
Leeches lead a parasitic mode of life, by sucking the blood of vertebrates. The adaptations are listed below: The three Jaws, inside the mouth,... View Article
