Which of the following does not liberate $H_2$ gas upon reaction with an acid?

Match the following:

List-$I$ (Group $13$ element)	List-$II$ (Metallic radius,$pm$)
$A$. $Al$	$I$. $135$
$B$. $Ga$	$II$. $143$
$C$. $In$	$III$. $170$
$D$. $Tl$	$IV$. $167$

The correct answer is:

Two elements $X$ and $Y$ combine separately with a highly electropositive metal to form binary compounds,which upon hydrolysis yield borane and silane,respectively. What are $X$ and $Y$?

The element which exists in liquid state for a wide range of temperature and can be used for measuring high temperature is :-

Which of the following statements is true about $H_3BO_3$?

Give the chemical reaction of aluminum with dilute $HCl$.