f-Block Elements- Properties & Uses Past Year (2016 - 2018) MCQs The d and f Block Elements Chemistry NEET Practice Questions, MCQs, Past Year Questions (PYQs), NCERT Questions, Question Bank, Class 11 and Class 12 Questions, and PDF solved with answers

The incorrect statement regarding the lanthanons is ;

1.	Europium shows +2 oxidation state
2.	The basicity decreases as the ionic radius decreases from Pr to Lu
3.	All the lanthanons are much more reactive than aluminium
4.	Ce (+4) solutions are widely used as oxidising agents in volumetric analysis

Subtopic: f-Block Elements- Properties & Uses |

63%

From NCERT

NEET - 2016

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NEET 2023 - Target Batch - Aryan Raj Singh

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NEET 2023 - Target Batch - Aryan Raj Singh

The electronic configurations of Eu (Atomic no. 63), Gd (Atomic no. 64), and Tb (Atomic no. 65) are, respectively:

1. [Xe] 4f⁶5d¹6s², [Xe]4f⁷5d¹6s², and [Xe] 4f⁹6s²

2. [Xe] 4f⁶5d¹6s², [Xe] 4f⁷5d¹ 6s², and [Xe]4f⁸5d¹6s²

3. [Xe] 4f⁷6s², [Xe]4f⁷5d¹6s², and [Xe] 4f⁹ 6s²

4. [Xe] 4f⁷6s², (Xe]4f⁸6s², and [Xe]4f⁸ 5d¹6s²

Subtopic: f-Block Elements- Properties & Uses |

67%

From NCERT

NEET - 2016

To view explanation, please take trial in the course.

NEET 2023 - Target Batch - Aryan Raj Singh

Hints

To view explanation, please take trial in the course.

NEET 2023 - Target Batch - Aryan Raj Singh