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Which of the following statements about ...

Which of the following statements about the modern periodic table is correct ?

A

It has 18 horizontal rows known as Periods

B

It has 7 vertical columns known as Periods

C

It has 18 vertical columns known as Groups

D

It has 7 horizontal rows known as Groups

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The correct Answer is:
C
Modern periodic table has 18 vertical columns known as groups.
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DINESH PUBLICATION-PERIODIC CLASSIFICATION OF ELEMENTS-NCERT Exemplar Problems (Multiple Choice Questions)
  1. In Mendeleev's periodic table, gaps were left for the elements to be d...

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  2. Which of the following statements (s) about the modern periodic table ...

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  3. Which of the following statements about the modern periodic table is c...

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  4. Which of the given elements A, B, C, D and E with atomic number 2, 3, ...

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

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

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

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

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

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

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

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

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

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

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

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

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

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  18. Three elements B, Si and Ge are

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

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

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