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NEET2010Chemistryd and f Block ElementsActual

What are constituents of 'Mischmetal'?

Options

  1. ALa , Fe
  2. BLa , Ce
  3. CFe , Ce
  4. DCe , Cu

Correct answer

B. La , Ce

Step-by-step solution

The constituents of Mischmetal is approximately 50 % cerium and 25 % lanthanum with small amounts of neodymium and praseodymium.

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