Question 1 : A hydrocarbon {tex} \mathrm A {/tex} on chlorination gives {tex} \mathrm B {/tex} which on heating with alcoholic potassium hydroxide changes into another hydrocarbon {tex} \mathrm C {/tex} . The latter decolourises Baeyer's reagent and on ozonolysis forms formaldehyde only. {tex} \mathrm A {/tex} is

Question 4 : When neo-pentyl bromide is subjected to Wurtz reaction, the product formed is

Question 6 : An unknown compound <b>'A'</b> has a molecular formula {tex}{{C}_{4}}{{H}_{6}}.{/tex} When <b>'A'</b> is treated with an excess of {tex}B{{r}_{2}}{/tex} a new substance <b>'B'</b> with formula {tex}{{C}_{4}}{{H}_{6}}B{{r}_{4}}{/tex} is formed. <b>'A'</b> forms a white precipitate with ammoniacal silver nitrate solution. <b>'A'</b> may be

Question 7 : Which one of the following compounds is prepared in the laboratory from benzene by a substitution reaction?

Question 8 : The olefin which on ozonolysis gives <img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5ea7dd57ab3481716f4b79f0"> and <img style='object-fit:contain' src="https://storage.googleapis.com/teachmint/question_assets/NEET/5ea7dd57399925718ac6b498"> is: