  We have explored the prospect of probing a neutral scalar ($H$) produced in
association with one $b$-quark and decaying either invisibly or into a pair of
$b$-quarks at the LHC with centre of mass energy $\sqrt s = 14$ TeV. In this
regard, we adopt an effective theory approach to parameterize a $Hb\bar bg$
vertex arising from a dimension six operator that encompasses the effect of
some new physics setting in at a high scale. We concentrate solely on the
five-flavor scheme to ascertain the sensitivity of the 14 TeV LHC in probing
such an effective coupling as a function of the scalar mass at the highest
possible projected luminosity, $3000~{\rm fb}^{-1}$. Through our multivariate
analysis using machine learning algorithm we show that staying within the
perturbative limit of the Wilson coefficient of the effective interaction,
evidence with statistical significance of $3\sigma$ can be obtained in two
different signal regions for $m_H\lesssim 2$ TeV and the scale of new physics
$\Lambda = 3$ TeV.
