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Assertion : Cuprous salts are diamagneti...

Assertion : Cuprous salts are diamagnetic.
Reason : Cu has 3d-filled subshell.

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Assertion : Cu^(2+) ion is a coloured ion . Reason : Every ion with unpaired electron is coloured .

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Assertion : Zn^(2+) and Cu^(2+) are colourless. Reason : Both Zn^(2+) and Cu^(2+) contain 3d-filled subshell.

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MODERN PUBLICATION-d-AND f- BLOCK ELEMENTS-EXERCISE
  1. Which of the following statements is not true?

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  2. The questions given below consist of an Assertion and the Reason. Use ...

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  3. Assertion : Cuprous salts are diamagnetic. Reason : Cu has 3d-filled...

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  4. Electronic configuration of Fe^2+.........

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  5. Assertion : La(OH)3 is less basic than Lu(OH)3 . Reason : Basic charac...

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  6. Assertion : FeCl3 reacts with KCNS to give blood red colouration. Re...

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  7. Sodium chloride is used to clear snow from roads. Explain.

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  8. Assertion : Zn^(2+) and Cu^(2+) are colourless. Reason : Both Zn^(2+) ...

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  9. Assertion : There is a continuous decrease in size among lanthanoids. ...

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  10. Assertion : Lanthanoids show a limited number of oxidation states wher...

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  11. Pt^(4+) is less/more stable than Ni^(4+) .

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  12. Match the element in Column I with the property mentioned in Column II

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  13. Find x in the following figures.

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  14. The answer to each of the following questions is a single- digit-integ...

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  15. The number of electrons present in the 4f-subshell of Gd (Z = 64) is

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  16. Write the iupac name of the compound : Li[Al H4]

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  17. The number of paramagnetic ions among Ti^(3+), Cr^(3+), Ti^(4+), Fe^(2...

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  18. The magnetic moment of a transition metal ion is found to be 4.90 BM. ...

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  19. The oxidation number of Mn in the product of alkaline oxidative fusion...

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  20. In neutral or faintly alkaline solution, 8 moles of permanganate anion...

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