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Which of the following transition elemen...

Which of the following transition elements shos +7 oxidation state?

A

Cr

B

Mn

C

Fe

D

Ni

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UNITED BOOK HOUSE-HIGHER SECONDARY EXAMINATION 2019-EXERCISE
  1. Which of the following compound does not respond to aldol con-densatio...

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  2. Which of the following is most reactive in SN2 reaction?

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  3. Which of the following transition elements shos +7 oxidation state?

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  4. Which of the following is lyophilic collid?

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  5. Which of the following is strongly attracted by magnetic field?

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  6. Which of the following is paracetamol?

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  7. Which of the following is not condensation polymer?

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  8. In the following reaction the compound 'A' is-

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  9. Which of the following cannot be identified by iodoform test?

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  10. Which of the following is strongest base?

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  11. Charge carried by 1 mole PO4^(3-) ions is.

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  12. Answer the following questions (Alternatives are to be noted): Why is ...

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  13. Why is magnetic moment of ferric compound more than ferrous com-pounds...

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  14. Write general electronic configuration of actinoids.

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  15. How can a colloidal solution and true solution of the same colour be d...

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  16. Arrange Li+,Na+ and Rb+ ions in the ascendign order of their molar ion...

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  17. What is the unit of electro-chemical equivalent?

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  18. Answer the following questions (Alternatives are to be noted): KBr und...

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  19. What is azeotropic mixture? Can it be considered as ideal solution?

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  20. Write two differeneces between physisorption and chemisorption.

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