STD 12 - 8.2 Carboxylic acids and their derivative — NEET STD 11 Science — Question

The direct reaction of xenon with fluorine leads to a series of compounds with oxidation numbers $+2,+4$ and $+6$ . XeF $4$ reacts violently with water to give $\mathrm{XeO}_3$. The compounds of xenon exhibit rich stereochemistry and their geometries can be deduced considering the total number of electron pairs in the valence shell.

$1.$ Argon is used in arc welding because of its

$(A)$ low reactivity with metal 

$(B)$ ability to lower the melting point of metal

$(C)$ flammability 

$(D)$ high calorific value

$2.$  The structure of $\mathrm{XeO}_3$ is

$(A)$ linear  $(B)$ planar  $(C)$ pyramidal  $(D)$ $T$-shaped

$3.$  $\mathrm{XeF}_4$ and $\mathrm{XeF}_6$ are expected to be

$(A)$ oxidizing  $(B)$ reducing  $(C)$ unreactive  $(D)$ strongly basic

Give the answer question $1,2$ and $3.$

$2 \mathrm{H}_{2}(\mathrm{g})+2 \mathrm{NO}(\mathrm{g}) \rightarrow \mathrm{N}_{2}(\mathrm{g})+2 \mathrm{H}_{2} \mathrm{O}(\mathrm{g})$

the observed rate expression is, rate $=\mathrm{k}_{\mathrm{f}}[\mathrm{NO}]^{2}\left[\mathrm{H}_{2}\right] .$ The rate expression of the reverse reaction is