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Most Important Selected Qs for JEE AdvancedChemistryd and f Block Elements

How many of the following are lanthanides? Uranium, praseodymium, erbium, gadolinium, curium, hafnium, osmium, iridium

Correct answer

3

Step-by-step solution

Praseodymium (Pr), erbium Er and gadolinium Gd are lanthanoids.

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