4. Chemical bonding and molecular structure — Chemistry STD 11 Science — Question

$2AB_{2(g)} \rightleftharpoons  2AB_{(g)} + B_{2(g)}$

The degree of dissociation is $x$ and is small compared to $1.$ The expression relating the degree of dissociation $(x)$ with equilibrium constant $K_P$ and total pressure $P$ is

$(a)$ $R_2SiO$ is repeating unit of linear silicones

$(b)$ $R$ $SiCl_3$ on hydrolysis followed by dehydration gives linear silicones

$(c)$ Silicones can be used as heat insulator

$(d)$ Silica is soluble in $HF$

The correct statement$(s)$ is/are