STD 11 - 8.3. Organic chemistry purification and characterization — NEET STD 11 Science — Question

$(a)$ $U$ and $H$ each depends only on temperature

$(b)$ Compressibility factor $z$ is not equal to $1$

$(c)$ $C _{ P , m }- C _{ V , m }= R$

$(d)$ $d U = C _{ V } d T$ for any process

$R - C \equiv C - R\xrightarrow{{Pd/BaS{O_4}}}A$

$R - C \equiv C - R\xrightarrow{{Na/Liq.\,NH_3}}B$

$P$ can be

true about this mechanism