$A$ gas $X$ is used in filling balloons for meteorological observations. It is also used in gas-cooled nuclear reactors. Here,the gas $X$ is

  • A
    Neon
  • B
    Argon
  • C
    Krypton
  • D
    Helium

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In the following reaction, find the values of $a, b, p, q, r$ and $s$:
$a XeF_4 + b H_2O \rightarrow p Xe + q XeO_3 + r HF + s O_2$

The shape of $XeF_6$ is,

What is the atomic number $(Z)$ of the noble gas that reacts with fluorine?

Which of the following elements among $He, Ar, Kr,$ and $Xe$ forms compounds in the least amount?

Give the formula and describe the structure of a noble gas species which is isostructural with:
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$(ii)$ $IBr_{2}^{-}$
$(iii)$ $BrO_{3}^{-}$

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