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What are hydrocarbons? When the hydrogen reacts with carbon a new compound is formed that’s usually called the hydrocarbon. Hydrocarbons are one of the major components of organic chemistry. They are organic compounds which are made up of hydrogen and carbon atoms. The molecular formula for these compounds is CxHy. The […]

What are hydrocarbons?

E-wallet is a type of electronic card which is used for transactions made online through a computer or a smartphone. Its utility is same as a credit or debit card. An E-wallet needs to be linked with the individual’s bank account to make payments. The main objective of e-Wallet is to […]


UPSC IAS Prelims is the first stepping stone towards the final dream of becoming a Civil Servant. It is that essential stage of IAS Exam that you need to clear if you want to attempt the IAS Mains Exam. It is an objective exam and marks secured by a candidate in Prelims are not counted towards […]

How to Prepare for History for IAS Prelims