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Which of the following elements does not...

Which of the following elements does not belong to the actinoid series?

A

Th

B

Pu

C

Tm

D

No

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There are 14 elements in actinoid series. Which of the following elements does not belong to this series?

Read the passage given below and answer the following questions: Although actinoids are similar to lanthanoids in that their electrons fill the 5f orbitals in order, their chemical properties are not uniform and each element has characteristic properties. Promotion of 5 - 6d electrons does not require a large amount of energy and examples of compounds with 77 acid ligands are known in which all the 5f, 60, 7s, and 7p orbitals participate in bonding. Trivalent compounds are the most common, but other oxidation states are not uncommon. Especially, thorium, protactinium, uranium, and neptunium tend to assume the +4 or higher oxidation state. There are 14 elements in actinoid series. Which of the following element does not belong to this series?

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Which of the following element does not belong to 4d series of transition elements?

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XII BOARDS PREVIOUS YEAR-CUET MOCK TEST 2022 -MULTIPLE CHOICE QUESTIONS
  1. Which of the following statement is correct?

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  2. In the given reaction, the oxidation state of Mn are 3MnO(4)^(2-) + 4...

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  3. Which of the following elements does not belong to the actinoid series...

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  4. The correct IUPAC name of [Pt(NH3)2Cl(NO2)] is

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  5. The CFSE for the tetrahedral complex is 8000 cm^(-1) The CFSE for octa...

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  6. [Pd(C6H5)2(SCN)2] and [Pd(C6H5)2(NCS)2] are the example of

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  7. The correct order of increasing crystal field splitting energy is

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  8. Which reagent will you use for the following reaction. CH3CH2CH2CH3 ...

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  9. In the following reaction, the product formed will be

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  10. Which of the following compound is chiral in nature?

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  11. Ethanal can be formed by ethanol through

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  12. The common name of the given compound is H3C-overset(Br)overset(|)(CH)...

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  13. The given reaction is

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  14. The reactant and reagent used to prepare the following aldehyde CH3 -C...

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  15. Given below are two statements Statement I: Ethanal is a volatile l...

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  16. Which one of the followings is used as a nitrogen source in Gabriel's ...

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  17. Methylamine reacts with nitrous acid to form

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  18. Which one of the following reagents is not used for the reduction of n...

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  19. Azo coupling reaction with benzene diazonium chloride will not be show...

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  20. In the Gabriel synthesis, the following amines can be prepared A. I...

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