The maximum sum of the number of neutrons and protons in an isotope of hydrogen is

  • A
    $4$
  • B
    $5$
  • C
    $6$
  • D
    $3$

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Match the following:
List-$I$List-$II$
$A$. Electron-deficient hydride$I$. $CH_4$
$B$. Electron-precise hydride$II$. $B_2H_6$
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