A hydrocarbon X (C6H10) adds two moles of H2 over Ni to give hexane and, on ozonolysis followed by Zn/H2O, gives two moles of ethanal and one mole of ethanedial (OHC-CHO). Select the correct statement(s).

The degree of unsaturation of X is 2.

Complete hydrogenation of X gives an unbranched product.

The degree of unsaturation of X is 2.

Complete hydrogenation of X gives an unbranched product.

X gives a white precipitate with ammoniacal AgNO3.

JEE Advanced levelOne or more correct optionsDifficulty 3 of 3si114

A hydrocarbon X ( $C X_{6} H X_{10}$ ) adds two moles of $H X_{2}$ over Ni to give hexane and, on ozonolysis followed by $Zn / H X_{2} O$ , gives two moles of ethanal and one mole of ethanedial ( $OHC - CHO$ ). Select the correct statement(s).

Fragments

CH X_{3} CH =

= CH - CH =

and

= CHCH X_{3}

joined together give

CH X_{3} CH = CH - CH = CHCH X_{3}

, hexa-2,4-diene.

C X_{6} H X_{10}

has degree of unsaturation

(14 - 10) /2 = 2

, and hydrogenation gives hexane. It has no terminal alkyne C-H and so does not give a precipitate.