What are the combustion products of an aliphatic thiol $(RSH)$ at $298 \ K$?

Which of the following is formed when calcium combines with oxygen?

What volume of hydrogen gas at $STP$ would be liberated by the action of $50 \text{ mL}$ of $H_2SO_4$ of $50\%$ purity (density = $1.3 \text{ g mL}^{-1}$) on $20 \text{ g}$ of zinc (in $L$)? Given: Molar mass of $H, O, S, Zn$ are $1, 16, 32, 65 \text{ g mol}^{-1}$ respectively.

On reaction of $38.1 \ g$ iodine and $28.4 \ g$ chlorine,a mixture of $ICl$ and $ICl_3$ is obtained. What will be the total number of moles after the reaction?

The mass of $AgCl$ precipitated when a solution containing $11.70 \ g$ of $NaCl$ is added to a solution containing $3.4 \ g$ of $AgNO_3$ is [Atomic mass of $Ag=108$,$Na=23$,$Cl=35.5$,$N=14$,$O=16$] (in $g$)

$A$ mixture containing $64.0 \ g$ of $H_2$ and $64.0 \ g$ of $O_2$ is reacted so that water is formed as follows:
$2H_2 + O_2 \rightarrow 2H_2O$
Which of the following statements is/are correct?