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Which of the pairs have almost similar size ?A. `._22Ti and ._40Zr`B. `._41Nb and ._73Ta`C. `._30Y and ._57La`D. `._20Caand ._31lr` |
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Answer» Correct Answer - B Due to lanthanide contraction `._41Nb` and ._73Ta` have almost similar size. |
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