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(a) What was the basis of Mendeleev's Cl...

(a) What was the basis of Mendeleev's Classification of elements ?
(b) List two achievements of Mendeleev's periodic tables.
(c) List any two observations which posed a challenge to Mendeleev's periodic law.

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CENGAGE CHEMISTRY ENGLISH-APPENDIX - INORGANIC VOLUME 1-Exercise Short
  1. Why are group 1 elements called alkali metals ?

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  2. Give five characteristics of d-block elements.

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  3. (a) What was the basis of Mendeleev's Classification of elements ? (...

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  4. Why does the solubility of alkaline earth metal carbonates and sulphat...

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  5. why is melting point of LiCI lower than NaCI?

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  6. Arrange the following in increasing order: a. BeCO(3),BaCO(3),CaCO(3...

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  7. Which alkali metal carbonate is thermally unstable and why?

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  8. The element which has highest electron affinity ?

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  9. What is diagonal relationship?

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  10. Give four characteristics of f-block elements.

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  11. Why are electron affinities of noble gases zero? Arrange halogens in i...

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  12. Arrange the species in each group in order of increasing ionisation en...

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  13. State the factors which affect electronaffinity

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  14. Explain the term (a) screening effect

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  15. which has higher 1st ionisation energy B or Be and why?

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  16. How does reducing power of elements vary in group 1?

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  17. a. Among Cu^(o+),Cu^(2+) and Cu which is the largest in size and why? ...

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  18. Give two characteristics of p-block elements.

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  19. What is modern periodic law? Mention the important features of the lon...

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  20. Elements A and B have atomic numbers 11and 24 respectively. Write the...

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