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The pair of elements with the following ...

The pair of elements with the following atomic numbers are chemically similar 

A

13, 12

B

13, 15

C

3, 11

D

2,8 8.

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The correct Answer is:
C
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AAKASH SERIES-ALKALI METALS-OBJECTIVE EXERCISE - 1
  1. Among the following most reactive metal is

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  2. Alkali metals are soft and have low melting point and boiling point du...

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  3. The pair of elements with the following atomic numbers are chemically ...

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  4. In certain respects, lithium differs from other alkali metals. The mai...

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  5. Which of following reacts most voilently with water

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  6. (A) : Sodium metals is stored in kerosene (R): The density of sodium...

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  7. (A) : Alkali metals are good reducing agents (R) : Alkali metals pos...

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  8. The first three elements of group 1 have the following atomic structur...

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  9. Mark the false statement

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  10. Identify the correct statement

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  11. Pick up the correct statement about the solution on an alkali metal in...

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  12. Potassium metal is - and then sodium?

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  13. Statement-I: Lithium hydride is the stablest of all the alkali metal h...

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  14. Wrong match is

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  15. The reducing power of a metal depends on various factors. Suggest the ...

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  16. A colourless salt gives violet colour to Bunsen flame and also turns m...

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  17. In which of the following the metal is getting oxidised ?

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  18. (A): Lithium reacts with water more vigorously than sodium (R): Lith...

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  19. Peroxides of alkali metals are

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  20. Which of the following is paramagnetic ?

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