Which of the following statements about magnetite ore of iron is/are correct?
1. It is known as black ore.
2.It contains 60% to 70% of pure iron.
3.It possesses magnetic properties.
Select the correct answer using the codes given below:
1 only
2 and 3 only
1 and 3 only
1, 2 and 3
For election to the Lok Sabha, a nomination paper can be filed by
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In a month if the seventh day is three days earlier than Saturday,then the nineteenth day of the month will be a
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Which among the following events happened earliest ?
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An 80-litre solution of alcohol and water has 75% alcohol. How much water (in litres) must be added to bring down the concentration of alcohol to 60%?
Miscellaneous · Easy