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The triad not present in Group VIII of M...

The triad not present in Group VIII of Mendeleeff's table

A

Li , Na , K

B

Fe, Co, Ni

C

Ru, Rh, Pd

D

Os, Ir, Pt

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The correct Answer is:
A
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PASSAGE - 1: In Mendeleeff's periodic table elements were classified on the basis of atomic weight & in modern periodic table on the atomic number. The lighter elements of 2 & 3 periods show similarities in their properties called diagonal relationship 1. Which of the following element is not present in Mendeleeff's periodic table

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Which is true for an element R present in group 13 of the periodic table

………….,………are anomalous pair of elements in Mendeleeff's periodic table.

Which one is not a salient features of the Mendeleeff's periodic table. a) Groups and Sub-groups. b) Predicting the properties of missing elements. c) Anomalous series. d) Correction of atomic weights.

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AAKASH SERIES-PERIODIC CLASSIFICATION-OBJECTIVE EXERCISE - 2 (PERIODIC CLASSIFICATION)
  1. The triad not present in Group VIII of Mendeleeff's table

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  2. The atomic number of an element is 58. it blongs to

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  3. In the periodic table, inversion of atomic weights took place in this ...

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  4. The frequency of the characterstic X ray of K(alpha) line of metal tar...

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  5. The period that contains only gaseous elements is

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  6. Pair of elements with the following atomic numbers have the same chemi...

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  7. The sub-shells filled one by one for 4th period elements are

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  8. The starting element and last element in the largest period in modern ...

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  9. Which of the following has both members from the same period of the pe...

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  10. As per the modern periodic law, the physical and chemical properties o...

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  11. Atomic number of nitrogen is 7. The atomic number of the third member ...

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  12. Element with atomic number 38, belongs to

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  13. Set of elements with the following atomic numbers belong to the same g...

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  14. The element which belong to 3rd period and IVA group of periodic table...

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  15. Screening by inner electrons will be more effective in

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  16. Which of the following pairs has elements containing same number of el...

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  17. The period that includes all blocks of elements is

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  18. Among s-block metals and transition metals, which are more metallic?

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  19. Element with atomic number 52 belongs to

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  20. The period number and group number in which maximum number of elements...

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