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All the elements in a group in the perio...

All the elements in a group in the periodic table have the same

A

Ionization enthalpy

B

Electronegativity

C

Electron gain enthalpy

D

Strength as a reducing agent.

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NCERT TAMIL-PERIODIC CLASSIFICATION-I-Questions (Choose the Best Answer)
  1. Which of the following forms stable gaseous negative ion

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  2. The elements having highest ionization energies within their periods a...

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  3. All the elements in a group in the periodic table have the same

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  4. Elements whose atoms have their s and p-sub-levels complete are the:

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  5. The law of triad is applicable to :

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  6. The law of octaves was stated by :

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

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  8. Which of the following has the lowest melting point ? CsCl RbCl KCl N...

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  9. Which of the following hydroxide is most basic ?

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  10. Excluding hydrogen and helium , the smallest element in the periodic t...

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  11. Which one among the following species has the largest atomic radius ?

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  12. Which of the following is the lightest metal ?

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  13. Which element of the following has the highest ionisation potential? ...

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  14. With respect to chlorine, hydrogen will be

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  15. Which element has the greatest tendency to lose electrons?

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  16. Halogens belong to the :

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

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  18. Which of the following combinations is in order of increasing resistan...

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

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  20. Characteristic of transition elements is incomplete

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