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Q.

Statement I : Gallium is used as a thermometric liquid
Statement II : Gallium has wide liquid range of temperature

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a

Both the statements are true

b

Both the statements are false

c

I is false and II is true

d

I is true and II is false

answer is A.

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Detailed Solution

Melting point of Ga is : ~30o

Boiling point of Ga is : 24030

G{a_{left( S right)}}mathop to limits_{{{30}^0}} ,G{a_{left( l right)}}mathop to limits_{{{2403}^0}} ,,,,G{a_{left( l right)}}

therefore Ga exists as liquid between 300 to 24030 .

→ Any compound exist as liquid between melting point temperature and boiling point temperatures .So "Ga" has wide liquid range and hence it is used as thermometric liquid for measuring high temperatures.

 

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