which of the following mineral is present in monazite sand.
a-iron
b-copper
c-uranium
d-thodium
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YOUR ANSWER : lanthanum or thorium
Due to the alpha decay of thorium and uranium, monazite contains a significant amount of helium, which can be extracted by heating. Monazite is an important ore for thorium, lanthanum, andcerium. It is often found in placer deposits. India, Madagascar, and South Africa have large deposits of monazite sands.
EC10:
I'm only asking simple question of mcq not asking a theory with you
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