1.

Here, the product X and Y are

Answer»

`{:(X,, Y) ,( n-"propyl ALCOHOL ",,n- "propyl alcohol "):}`
`{:(X,, Y) ,( ISO -"propyl alcohol ",,iso - "propyl alcohol "):}`
`{:(X,, Y) ,( n -"propyl alcohol ",, iso - "propyl alcohol "):}`
`{:(X,, Y) ,( iso -"propyl alcohol ",, n - "propyl alcohol "):}`

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