Multiple choice

Which of the following statements is incorrect?

  1. Iron is the most abundant transition metal.

  2. Copper is the best reducing agent among 3d series transition elements.

  3. Zr and Hf have the same atomic size.

  4. Ti4+ is colourless.

  5. Osmium is the densest transition element.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

All the elements of 3d series are good reducing agents except copper.

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