Name the force which is compulsory to sustain uniform circular motion.
Centripetal Force is a must to sustain uniform circular motion as it ensures that the object stays along the circular... View Article
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Which part of the ovule provides nourishment to the developing embryo?
Nucellus is a mass of parenchymatous cells, which is surrounded by integuments. It encloses the embryo sac and provides nutrition... View Article
What does the following reaction shows about the structure of glucose?
The reaction shows the presence of carbonyl group in glucose since hydrogen cyanide is reacting with the carbonyl group of... View Article
What is the utmost importance for controlling environmental pollution?
The utmost importance for controlling environmental pollution waste management. Waste must be separated and deposited in appropriate bins. Firstly, the waste... View Article
Name the book in which Charles Darwin describes the idea of evolution.
Charles Darwin described the idea of evolution in 1859 in his book, The Origin of Species. The word ‘evolution’ was... View Article
State energy conversion that takes place during working of Microphone.
The Energy change that takes place in a Microphone is Sound energy to Electrical energy. A microphone converts sound into a... View Article
What is the process of separation of solid organic compounds known as?
The process of separation of solid organic compounds is known as crystallisation.
What is the electronic configuration of an atom with atomic number 19?
The electronic configuration is termed the distribution of electrons of an atom in the orbitals. The gaining or losing of... View Article
The magnitude of kinetic energy of a body is ‘k’. what is its kinetic energy if its velocity is doubled ?
Kinetic energy is transferred between objects and can be transformed into other forms of energy. Kinetic energy is given by... View Article
Give an example of an appliance that works on the principle of moment.
According to the principle of the moment, if the body is balanced, the total clockwise moment about a point is... View Article
What is the oxidation number of the phosphorus in Pyrophosphoric acid?
The oxidation number of phosphorus in Pyrophosphoric acid is +5. The total number of electrons that an atom either gains or loses... View Article
Name the continent which is separated from Asia by the Ural Mountains.
Europe and Asia are separated by the Ural Mountains. By the Ural mountains in the west, Asia is separated from Europe.... View Article
What evidence do we have for the origin of life from inanimate matter?
The evidence for the origin of life from inanimate matter was provided through an experiment, conducted in 1953, by Stanley... View Article
List the conditions that are required to maximize the yield of ammonia.
Ammonia is prepared on a large scale by Haber’s process. N2(g) + 3H2(g) ⇌ 2NH3(g) Conditions that are required to... View Article
Where does the formation of image of an object take place in human eye?
The human eye forms the image of an object at its retina. The retina acts as a screen for forming... View Article
What does the given reaction indicate? Cu + 2AgNO3→ Cu(NO3)2 + 2Ag
Cu + 2AgNO3 → Cu(NO3)2+ 2Ag From the given reaction the following things can be determined or indicated The reaction... View Article
Which metallic container is suitable to store copper sulphate solution?
As per the metals, in the reactivity series, silver is less reactive than copper, so there will be no displacement... View Article
What is the correct formula for calculating elevation in boiling point?
Boiling point elevation refers to the increase in the boiling point of a solvent upon the addition of a solute.... View Article
Which reptile is characterized by the presence of four-chambered heart?
The crocodile is the reptile that is characterized by the presence of a four-chambered heart. Characteristics of Reptiles Reptiles are... View Article
Which acid is formed when concentrated nitric acid reacts with sulphur?
Sulphuric acid(H2SO4), NO2 and water are formed when concentrated nitric acid reacts with sulphur. Explanation Nitric acid (HNO3) is an... View Article
