Work is done whenever the given two conditions are satisfied: A force acts on the body. There is a displacement of the body by applying... View Article
To write the given number in the Indian system of numeration, we need to follow the rules. As per the Indian system of numeration, the following... View Article
Larger the number of unpaired electrons, the more paramagnetism it has. The correct option is [Fe(H2O)6]2+ Paramagnetic character ∝ Number of... View Article
Although human beings vary widely in size, colour, and looks, human beings' genetic makeup is similar. The variations in size, colour and looks... View Article
Answer: No. The process does not violate the law of conservation of energy. When the body falls from a height, its potential energy changes... View Article
Packing efficiency is maximum in the case of Hexagonal close-packing, which is 74%, and the least space occupied is in the simple cubic unit... View Article
(a) The protruding part of the throat in boys is called Adam's apple. The enlarged voice box or larynx gets enlarged and visible from outside at... View Article
The motion of planets around the earth, rainfall and snowfall, and tides occur due to the gravitational force, whereas thunder lightning is an... View Article
In 1911, Earnest Rutherford, a scientist from New Zealand, overturned Thomson’s atomic model by his gold foil experiment. His experiment... View Article
The person is suffering from myopia and hence need a concave lens to correct the defect. The lens should be such that an object at infinity must... View Article
Option (d) Dissolved oxygen is not considered a water pollutant since dissolved oxygen is essential to aquatic plants and animals. Water... View Article
Receptors are present over all parts of the body, for example, in skin, eye, nose, tongue etc. They detect the signals and then send them to the... View Article
Answer: (b) Benzene and Toluene Since both benzene and toluene are non-polar, operating intermolecular forces are almost similar. Hence, they... View Article
We know the saying that cleanliness is next to godliness. Keeping the surroundings clean is the prime factor that avoids the spread of many... View Article
Answer: iii) CHCl3 and Acetone CHCl3 and Acetone shows a negative deviation. Raoult’s law states that in a solution, the vapour pressure of a... View Article