Asthma patients use a mixture of $.....$ for respiration.

$H^+$,$D^+$,and $T^+$ differ in all of the following $EXCEPT$ one.

Match List $I$ with List $II$

List $I$	List $II$
$A.$ Cobalt catalyst	$I.$ $(H_2 + Cl_2)$ production
$B.$ Syngas	$II.$ Water gas production
$C.$ Nickel catalyst	$III.$ Coal gasification
$D.$ Brine solution	$IV.$ Methanol production

Choose the correct answer from the options given below:

What is the structural formula of lithium tetrahydridoaluminate?

Hydrogen can be produced by heating

The correct statements among $(a)$ to $(d)$ are:
$(a)$ Saline hydrides produce $H_2$ gas when reacted with $H_2O$.
$(b)$ Reaction of $LiAlH_4$ with $BF_3$ leads to $B_2H_6$.
$(c)$ $PH_3$ and $CH_4$ are electron-rich and electron-precise hydrides,respectively.
$(d)$ $HF$ and $CH_4$ are called as molecular hydrides.