Tertiary alkyl halides are practically inert to $SN^2$ mechanism because of....

Phosgene is formed slowly from which one of the following on exposure to air and sunlight?

Identify the catalyst $X$ used in the following reaction: $CH_{3}CH_{2}Br + 2[H] \stackrel{X}{\longrightarrow} CH_{3}CH_{3} + HBr$

Find the reactants which on heating with alcoholic $KOH$ produce the compound $CH_3-CH_2-CH_2-CH=CH_2$.
$(i) \ CH_3-CH(Br)-CH_2-CH_2-CH_3$
$(ii) \ CH_3-CH_2-CH(Br)-CH_2-CH_3$
$(iii) \ CH_3-CH_2-CH_2-CH_2-CH_2Br$
$(iv) \ CH_3-CH_2-CH_2-CH(Br)-CH_3$

Consider the following reaction. Which of the following products is not expected to be formed?
$CH_3CH_2CH(Br)CH_3 + HC \equiv C^- Na^+ \rightarrow ?$

What is the major product obtained when $tert-$butyl bromide is heated with silver fluoride?