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Rusting of iron is a chemical change because it forms a new substance (iron oxide) through a chemical reaction with oxygen and moisture. Heating and magnetization are physical changes as they don't alter the composition.
What is the growth rate of Service Sector in India in 2019-20?
Recently, Cannes Film Festival was held in
Which of the following cities are called “Tree city of the world”?
Which one of the following diagrams is most appropriate to the statement, "Tea-producing places are either in Assam or in Bengal"?
On the recommendation of which Commission, The payment of wages act 1936 Drafted?
Which of the following statements is incorrect regarding “Employee provident fund organization”?
What is the trial balance used for?
When did the LPG reform Budget was introduced in 1991?
Which of the following is the parent ministry of PMJDY?
What term is used to denote the repetition of data in DBMS?