What is the process of rust forming on iron called?
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According to Dalton’s Atomic Theory, the smallest indivisible particles of matter is called ______.
Which of the following compounds is the strongest acid?
For the aquatic organisms, the source of food is
In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/Phrase.
By fits and starts
An economic system combining private and state enterprise is called as _____
The material used in electric heater is
Who was the first woman Chief Minister of Uttar Pradesh?