Which of the following statements is NOT corr | vedclass

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Question

(A) The statement that $Helium$ is used in balloons because it is lighter than $Hydrogen$ is incorrect. $Helium$ is actually heavier than $Hydrogen$ (

Vedclass · Accepted Answer

It is used in gas balloons instead of $Hydrogen$ because it is light and non-inflammable.

Vedclass · Answer

(A) The statement that $Helium$ is used in balloons because it is lighter than $Hydrogen$ is incorrect. $Helium$ is actually heavier than $Hydrogen$ ($Molar \ mass \ of \ He = 4 \ g/mol$ while $Molar \ mass \ of \ H_2 = 2 \ g/mol$). However,it is preferred over $Hydrogen$ because it is non-inflammable and safe,whereas $Hydrogen$ is highly inflammable.

Which of the following statements is $NOT$ correct regarding $Helium$?

Similar Questions

Which of the following xenon compounds has the same number of lone pairs as in $I_3^-$?

Consider the following transformations:
$I. XeF_6 + NaF \to Na^+[XeF_7]^-$
$II. 2PCl_{5(s)} \to [PCl_4]^+[PCl_6]^-$
$III. [Al(H_2O)_6]^{3+} + H_2O \to [Al(H_2O)_5OH]^{2+} + H_3O^+$
Which of the above transformations are correct?

Balance the following equation: $XeF_{6} + H_{2}O \rightarrow XeO_{2}F_{2} + HF$

$Xe + 2F_2 \xrightarrow{573 \ K, \ 60.70 \ bar} A$
What is $A$?

Select the incorrect statement.

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