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The elements x,y and z are present in on...

The elements x,y and z are present in one period of the periodic table. Chemically their oxides are acidic, amphoteric and basic respectively. When these elements are arranged in ascending order of atomic number they are

A

x,y,z

B

z,y,x

C

y,z,x

D

y,x,z

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The correct Answer is:
B
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NARAYNA-PERIODIC TABLE -All Questions
  1. Among (a) Na(2)O (b) MgO, (c) Al(2)O(3), (d) P(2)O(5) (e) Cl(2)O(7) th...

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  2. Which of the following cannot form an amphoteric oxide ?

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  3. The elements x,y and z are present in one period of the periodic table...

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  4. Boron and Silicon resemble chemically. This is due to the equal value ...

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  5. The electronegativity of Be is same as that of

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  6. Beryllium shows diagonal relationship with aluminum . Which of the fol...

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  7. Diagonal relationsgip is quite pronounced in the elements of

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  8. Diagonal relationship is shown by

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  9. The pair of elements that have similar chemical properties are

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  10. The following are some statements about Mendeleeff's periodic table ...

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  11. Which of the following pairs of atoms have same number of electrons in...

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  12. The electronic configuration of an element is 1s^(2)2s^(2)2p^(6)3s^(2)...

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  13. The element present in the IIIA group and 3 period in the periodic tab...

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  14. The long form of periodic table is nothing but just a graphical repres...

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  15. In the sixth period, the orbitals being filled are

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  16. The number of valence electrons that can be present in the second elem...

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  17. At room temperature liquid metal and liquid non-metals are

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  18. Which of the following contains same number of elements

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  19. The statement that is false regarding the long form the periodic tabl...

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  20. Covalent bond length of chlorine molecule is 1.98A^(0). Covalent radiu...

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