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Magnetite is an ore of ?

AMagnesium

BIron

CSilver

DCopper

Answer:

B. Iron

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ഭാവിയുടെ ലോഹം എന്നറിയപ്പെടുന്നതേത്?
Other than mercury which other metal is liquid at room temperature?
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താഴെപ്പറയുന്നവയിൽ ഏതു ലോഹത്തിന്റെ അയിരാണ് കലാമിൻ?
Which one of the following ore-metal pairs is not correctly matched?