Multiple choice

Match the column – I (third row transition metals) with column – II (their most stable oxidation state) and select the correct option.

 
Column – I
Column – II
P. Lanthanum 1. +3
Q. Hafnium 2. +4
R. Tantalum 3. +5

  1. P - 1, Q - 2, R - 3

  2. P - 1, Q - 3, R - 2

  3. P - 2, Q - 1, R - 3

  4. P - 3, Q - 1, R - 2

  5. P - 3, Q - 2, R - 1
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A Correct answer
Explanation

The most stable oxidation state of lanthanum (La) is +3 The most stable oxidation state of hafnium (Hf) is +4 The most stable oxidation state of tantalum (Ta) is +5

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