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Uses of Lanthanides

Lanthanides a...

Question

Lanthanides are extracted from:

A

Limonite

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B

Monazite

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C

Magnetite

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D

Cassiterite

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Solution

The correct option is A Monazite
Lanthanides are extracted from Monazite.
Monazite is the chief mineral from which lanthanides are extracted. While extracting thorium from monazite, the lanthanides are obtained as byproducts.

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Similar questions

Q. How are lanthanides extracted from monazite sand?

Q. The atomic numbers of Lanthanides are from:

Q. Consider the following statements with respect to lanthanides:

1. The basic strength of hydroxides of lanthanides increases from

L a (O H)_{3}

L u (O H)_{3} .

2. The lanthanide ions

L u^{3 +}, Y b^{2 +} a n d C e^{4 +}

are diamagnetic.

Which of the statement(s) given above is/are correct?

Q. Observe the following statements.

1

. Lanthanides actively participate in chemical reactions.

2

. The basic nature of hydroxides of lanthanides increases from

L a (O H)_{3}

L u (O H)_{3}

.

3

. Lanthanides do not form coordinate compounds as readily as d-block metals.
The correct statements are:

Q. What are lanthanides? Give the various oxidation states of lanthanides.

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