Question

51. Identify the correctly matched set among the following. A) Scandium – d - block – representative element B) Lanthanum – d - block – inner transition C) Cerium – f - block – transition element D) Actinium – d - block – transition element

Answer 1

Answer:

Answer is option(d):- Actinium- dblock.

Explanation:

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Answer 2

Option(B) is the correct answer.

Lanthanum-d-block- inner transition element

• To identify the correct match, we have to evaluate every option.
• In option A, Scandium is a block element but it is not a representative element. It is a transition element. So, it does not match.
• In option B, Lanthanum is a block element and is an inner transition element, so it is perfectly matched.
• In option C, Cerium is an f-block element but not a transition element. It is an inner transition element. It doesn't match.
• In option D, Actinium is a d-block element but not a transition element. It is a radioactive element. So, it also doesn't match.
• So, option B is correct.

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