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Which of the following is used in high t...

Which of the following is used in high temperature thermometry ? 

A

`Na`

B

`Ga`

C

`Tl`

D

`Hg`

Text Solution

Verified by Experts

The correct Answer is:
B
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AAKASH SERIES-ELEMENTS OF BORON FAMILY-OBJECTIVE EXERCISE - 1
  1. Which of the following pair of group 13 elements have similar atomic r...

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  2. Thallium shows different oxidation states because

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  3. Which of the following is used in high temperature thermometry ?

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  4. AICI(3) is

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  5. Which one is a non-metal in group 13 ?

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  6. The electropositive character increases from B to Al and then decrease...

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  7. When boron atom undergoes sp^(3) hybridi zation

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  8. Boron exhibits diagonal relationship with

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  9. The atomic radius of which element is least

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  10. (A): Gallium is used as a thermometric liquid (R):Gallium has wide l...

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  11. Statement I: BCl(3) and AlCl(3) are both Lewis acids and BCl(3) is str...

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  12. Boron does not form B^(3+) ions whereas Al forms Al^(3+) ions. This is...

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

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  14. Boron compounds behave as Lewis acids because of their

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  15. Which of the following is not an ionic trihalide?

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  16. The electropositive character increases from B to Al and then decrease...

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  17. (A): The oxidation number of boron in BF(3) is +3 (R) : Boron can no...

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  18. Borax when dissolved in water exbibits

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  19. On strong heating, Boric acid gives

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  20. Glassy bead is obtained by heating

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