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JEE CHEMISTRY MCQ: d & f- BLOCK ELEMENTS
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Medium
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Analyzing
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Given below are two statements one is labelled as Assertion(A) and the other is labelled as Reason(R).
Assertion(A): Size of is less than that of ion.
Reason(R): The above is a consequence of lanthanoid contraction.
In the light of the above statements, choose the most appropriate answer from the options given below.
Assertion(A): Size of is less than that of ion.
Reason(R): The above is a consequence of lanthanoid contraction.
In the light of the above statements, choose the most appropriate answer from the options given below.
View answer and explanation
Correct option: B
A is true but R is false
Option B is correct because under identical conditions of P and T, equal volumes contain equal moles, and since the molar masses of N2 and CO are both 28 g/mol, and the adjusted molar mass of O2 is also effectively 28 g/mol, their weights are equal.
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