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The elements A, B, C, D and E have atomi...

The elements `A, B, C, D` and `E` have atomic number `9, 11, 17, 12` and `13` respectively. Which pair of elements belongs to the same group ?

A

`A and B`

B

`B and D`

C

`A and C`

D

`D and E`

Text Solution

Verified by Experts

The correct Answer is:
C
Elements A (Z = 9) and C (Z = 17) belong to the same group. It is a halogen family (group 17).
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DINESH PUBLICATION-PERIODIC CLASSIFICATION OF ELEMENTS-NCERT Exemplar Problems (Multiple Choice Questions)
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  2. Which of the given elements A, B, C, D and E with atomic number 2, 3, ...

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  3. The elements A, B, C, D and E have atomic number 9, 11, 17, 12 and 13 ...

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  4. Where would you locate the element with electronic configuration 2,8 i...

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  5. An element which is an essential constituent of all organic compounds ...

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  6. Which of the following is the outermost shell for elements of period 2...

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  7. Which one of the following elements exhibit maximum number of velence ...

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  8. Which of the following gives the correct increasing order of the atomi...

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  9. Which among the following elements has the largest atomic radii ?

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  10. Which of the following elements would lose an electron easily ?

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  11. Which of the following elements does not lose an electron easily ?

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  12. Isotopes of an element have : (a) the same physical properties (b)...

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  13. Arrange the following elements in the order of their decreasing metall...

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  14. Arrange the following elements in the order of their increasing non-me...

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  15. What type of oxide would Eka-aluminium form ?

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  16. Three elements B, Si and Ge are

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  17. Which of the following elements will form an acidic oxide ?

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  18. The element with atomic number 14 is hard and forms acidic oxide and a...

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  19. Which one of the following depict the correct representation of atomic...

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  20. Which one of the following does not increase while moving down the gro...

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