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An alloy of which pair of metals is liqu...

An alloy of which pair of metals is liquid at ordinary temperature and is used in special thermometers used for finding temperatures above the boinding point of mercury.

A

`Na and Hg`

B

`K and Hg`

C

`Na and K`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
An alloy of Na and K is liquid at ordinary temperature and is used in special thermometers used for finding temperature above boiling point of mercury.
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DISHA PUBLICATION-THE s-BLOCK ELEMENTS-Exercise - 1 : Concept Builder (Topicwise)(TOPIC 1 : Preparation and Properties of Alkali Metals and their Compounds)
  1. Which of the following is known as fusion mixture ?

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  2. The dominant cation in the blood plasma (extracellular fluid) is

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  3. Among LiI, NaI, KI the one which is more ionic and more soluble in wat...

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  4. Based on lattice energy and other considerations which one of the foll...

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  5. The correct order of radii is A)N lt Be lt B B)F^(-) lt O^(2-) lt N^...

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  6. The melting point of lithium (181^(@)C) is just double the melting poi...

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  7. Alkali metals are generally extracted by

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  8. Which of the following has the least ionization potential ?

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  9. Fires, that result from the combustion of alkali metals can be extingu...

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  10. The stability of the following alkali metal chlorides follows the orde...

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  11. The order of solubility of lithium halides in non-lolar solvents follo...

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  12. Alkali metals form peroxides and superoxides except

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  13. Which of the following is used as a source of oxygen in square capsule...

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  14. Which of the following statements is false for alkali metals ?

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  15. Which of the following statements is correct for CsBr(3)?

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  16. The solubility order for alkali metal fluoride in water is :

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  17. An alloy of which pair of metals is liquid at ordinary temperature and...

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  18. An alkaline metal oxide which is soluble in NaOH has

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  19. The alkali metals which form normal oxide, peroxides as well as super ...

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  20. Which of the following compounds are paramagnetic in nature?

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