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The first attempt to classify the elemen...

The first attempt to classify the elements was made by :

A

Mendeleev

B

Newland

C

Lother Meyer

D

Dobereiner

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NCERT TELUGU-PERIODIC CLASSIFICATION-I-Questions (Choose the Best Answer)
  1. The law of triad is applicable to :

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  2. The law of octaves was stated by :

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  3. Which of the following property decreases down a group :

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  4. Which of the following has the lowest melting point ?

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  5. Which of the following hydroxide is most basic ?

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  6. Excluding hydrogen and helium, the smallest element in the periodic ta...

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  7. Which one among the following species has the largest atomic radius:

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  8. Which among the following is the lightest metal ?

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  9. Which of the following has highest ionization potential?

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  10. With respect to chlorine, hydrogen will be

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  11. Which of the following element has the greatest tendency to lose elect...

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  12. Halogens belong to the :

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  13. Compared to first ionization enthalpy of an atom, the second is :

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  14. The correct arrangement of increasing atomic radius among Na, K, Mg, R...

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  15. The first attempt to classify the elements was made by :

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  16. Characteristic of transition elements is incomplete in :

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  17. Which of the following will have lowest first ionization enthalpy ?

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  18. Which of the following atoms is likely to give off more energy on gain...

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  19. Transition metals have the electronic configuration :

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  20. In the first transition series the incoming electron enters the :

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