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Which of the following statements about the properties of Helium is incorrect?

(1) It's boiling and melting points are lower than any other known substance

(2) It's the only element to exhibit superfluidity

(3) It's the only noble gas that does not form compounds with Flourine

(4) It's the only noble gas that cannot be solidified under standard conditions

(5) It's the second most abundant element in the universe

$\begin{array}{1 1} Only \;(3) \\ (2)\;and \;(3) \\ (1)\;and \;(3) \\ (1),(2)\;and \;(4) \end{array}$
Can you answer this question?
 
 

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Answer: Only (2)
Helium is not the only noble gas to not form compounds with flourine. Argon, like Helium is also small in size and has a higher ionization energy that prevents it like forming compounds with Flourine unlike say Xenon.
answered Jul 28, 2014 by balaji.thirumalai
 

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