In which of the following states maximum iron ore is found ?
1). FeC03
2). Fe203
3). Fe304
4). FeS2
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1. By which organic compound all the oils arc known ?
2. The compound used in prickly-heat powder to prevent excessive sweating is
3. Which of the following is used to denature ethanol ?
4. Kidney stones are composed of ______.
5. ________ is made by mixing iron with carbon and metals like chromium, nickel and manganese.
6. The most abundant rare gas in the atmosphere is