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Among the options, the set of metals can form trihalides is
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Important Questions on d- and f- Block Elements
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In the following set of compounds, the pair with same magnetic moment is
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A solid on reaction with liberates a gas , which decolorises acidified . respectively are:
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The mixture of three parts of concentrated and one part of concentrated is reacted with gold metal. The main products of reaction are
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When oxalic acid is oxidised with acidified the number of moles of liberated is (consider balancing the reaction)
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Which of the following lanthanide ions has the highest number of unpaired electrons?
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Which of the following statements are correct?
A) The separation of actinoid elements from each other is difficult.
B) The covalency of the compounds of actinoid metals decrease from left to right along actinoid series.
C) The compounds of Lawrencium are most covalent.
D) and occur naturally in substantial quantities.
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Which of the following elements has the largest atomic radius?
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Which of the following statement is not correct?
