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The following are some statements about ...

The following are some statements about transition elements
i) IIB group belong to transition elements
ii) In these elements last two shells ns and (n-1)d are partially filled
iii) They show variable valencies

A

all are correct

B

only iii is correct

C

ii and iii are correct

D

i and ii are correct

Text Solution

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The correct Answer is:
C
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AAKASH SERIES-PERIODIC CLASSIFICATION-OBJECTIVE EXERCISE - 2 (PERIODIC CLASSIFICATION)
  1. Which of the following is an alloy of non-transition elements?

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  2. Common oxidation state of elemental transition metal is

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  3. Configuration that does not denote a transition element

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  4. An element of 5f-series but has no electrons filled in 5f-sub shell

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  5. An element has 18 electrons in the outer most shell. The element is

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  6. Element with electronic arrangement [Ar]3d^24s^2 belongs to

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  7. Number of outer shells partially filled for representative elements

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  8. Which of the following pairs has both members from the same group of t...

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  9. The elements with atomic number 10, 18, 36, 54 and 86 are all

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  10. Among the following, the number of elements showing only one non-zero ...

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  11. Following are some statements about modern periodic table i) It con...

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  12. The atomic number of the element which is not included in the main bod...

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  13. Match the Column {:("Column - I ","Column - II "),("a) Po ","i) Liqu...

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  14. Zinc is not considered as a transition metal because

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  15. The electronic configuration of an element 'X', is 1s^2 2s^2 2p^6 3s^2...

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  16. The IUPAC name of „Bh is

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  17. Number of unpaired electrons in Gd(Z =64) and the net electrons spin a...

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  18. Identify the correct statement

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  19. The following are some statements about transition elements i) IIB g...

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  20. An element with a mass number of 81 contains 31.7% more neutrons as co...

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