Energy exchanges take place: 1) in the formation of the mixture 2) formation of a solution 3) formation of compound
A chemical reaction is the change of a substance into a new one that has a different chemical identity. The... View Article
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An elevator descends into a mine shaft at the rate of 5 metres per minute. If it begins to descend from 15 metres above the ground, what will position after 45 minutes?
(i) Displacement = Velocity x Time = -5 m/min x 60 min = -300 m. (ii) Displacement from initial position... View Article
Find five rational numbers between -1 and 1.
Answer: A rational number, in Mathematics, can be defined as any number which can be represented in the form of... View Article
What is a taxon and what is the taxon order or primates?
Taxonomy is the study of the principles and practice of classification and is commonly used as a synonym for systematics,... View Article
How is only 10% of energy is passed from a trophic level to the next trophic level?
Energy is transferred along food chains, however, the amount of available energy decreases from one trophic level to the next.... View Article
Are pulses Rabi crops or Kharif crops?
Major Kharif Pulses include Arhar (pigeonpea/redgram), Urdbean (Blackgram), Mungbean (Greengram), Moth, Horsegram (kulthi). Tur/arhar has a lion share of area... View Article
What are the advantages and disadvantages of manuscripts?
The word manuscript literally means ‘handwritten’. They provide evidence of human activity, and as such, are generated naturally during the... View Article
An electric heater which is connected to a 220 V supply line has two resistance coils A and B of 24 W resistance each. These coils can be used separately (one at a time) , in series or in parallel. Calculate the current drawn when : (a) only one coil (b) Coil A and B are used
Given V=220 V RA = RB = 24 ohm (a) Current drawn when only coil A is used: I =... View Article
A p.d. of 4 V is applied to two resistors of 6 ohms and 2 ohms connected in series. Calculate : (a) the combined resistance (b) the current flowing (c) the p.d. across the 6 ohms resistor
The combines resistance can be calculated by (a) Req = R1 + R2 = 6 + 2 = 8 ohms.... View Article
State the chief function of each part of an ovule.
Ovules are contained within the ovary, and in the event of successful pollination, they will become the seed of the... View Article
Reign of Terror
The Reign of Terror (1793-1794) was a period in the French Revolution marked by a series of massacres and pubic... View Article
29 Sept 2020: The Hindu Analysis
UPSC Current Affairs Preparation: The Hindu Analysis Watch expert analysis of ‘The Hindu’ dated 29th September 2020. Important news and... View Article
Jacobins: Political Faction of the French Revolution
The Society of the Friends of the Constitution, after 1792, it was renamed Society of the Jacobins, Friends of Freedom... View Article
Industrial Revolution
The Industrial Revolution, otherwise known as the First Industrial Revolution, was a series of innovations in manufacturing processes that transformed... View Article
Bonn Convention | Convention on Migratory Species [UPSC Environment & Ecology Notes]
Bonn Convention is a name of the international treaty on the conservation of migratory species of wild animals, that was... View Article
Basel Convention on the Control of Transboundary Movements of Hazardous Wastes and their Disposal
Basel Convention on the Control of Transboundary Movements of Hazardous Wastes and their Disposal is a comprehensive treaty that was... View Article
Fundamental Rights in India and the United Kingdom – A Comparison
The concept of fundamental rights is an important one for the UPSC exam since it forms a vital part of... View Article
Write a note on biodegradable and non-biodegradable wastes?
Answer: There are plenty of degradable and non-degradable waste products. Categorization and proper waste management are therefore very necessary. It... View Article
What is average speed and average velocity?
Answer: Speed and velocity Speed is a scalar quantity that indicates there is no direction for it. It signifies how... View Article
Write a note on potassium dichromate and Its Preparation method?
Answer: Potassium dichromate has enormous industrial and laboratory significance as an inorganic chemical compound. It is an orange crystalline solid... View Article
