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What is lanthanoid contraction? What are...

What is lanthanoid contraction? What are the consequences of lanthanold contraction?

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(a) What is lanthanoid contraction? What is the cause of lanthanoid contraction? (b) Explain whether Cu^(2+) is paramagnetic or diamagnetic.

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XII BOARDS PREVIOUS YEAR-QUESTION PAPER 2022 TERM 2 SET 2-SECTION B
  1. Define coagulation. Differentiate between physical adsorption and chem...

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  2. State Hardy schulze rule.

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  3. What is Electrophoriesis ?

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  4. Write differences between physisorption and chemisorption.

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  5. What is lanthanoid contraction? What are the consequences of lanthanol...

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  6. Which of the 3d series of the transition metals exhibits the largest n...

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  7. Why does copper not replace hydrogen from acids?

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  8. Which of the following statement(s) is/are correct? (A) Transition m...

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  9. Zn, Cd, Hg are soft and have low melting point. Explain

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  10. pK(b) of aniline is more than that of methylamine. Why?

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  11. Aniline does not undergo Friedel Crafts alkylation. Explain.

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  12. State reasons for the following: primary amines have higher boiling po...

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  13. Arrange the following in the increasing order of their basic strength ...

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  14. What is Hinsberg's reagent ?

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  15. What is the role of pyridine in the acylation reaction of amines ?

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  16. A compound 'A' on reduction with iron scrap and hydrochloric acid give...

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  17. Complete the following CH(3)CN. overset((1.AIH(i-Bu)(2)))underset(2....

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  18. Complete the following Write IUPAC name of the following compound .

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  19. Complete the following reactions : (b) Give simple chemical tests t...

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  20. How would you convert the following : (i)Phenol to benzoquinone (i...

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