`(C_(6)H_(12))overset(HCl)rarr underset((C_(6)H_(13)Cl))(B)+(C )`
`(B)overset(Alc.KOH)rarr(D)` [isomer of (A)]
`(D)overset("Ozonolysis")rarr(E )` (It gives negative test with Fehling's solution but responds to iodoform test)
`(A)overset("Ozonolysis)rarr(F)+(G)` (Both give positive Tollens test but do not give iodoform test)
`(F)+(G)overset("Conc.NaOH)rarr HCOONa` + A primary alcohol .
Identify A to G.

Explanation

Both (G) and (G) are aldehydes having no `alpha`-H atom because they undergo cross Cannizzaro reaction and they give positive Tollen' test. One aldehyde is (HCHO), since one product of Cannizzaron reaction is HCOONa
Total carbon atom in (A) are sixand ozonolysis, product, of (A) is HCHO an a fie carbon aldehyde ahving no `alpha` H atom . So, another aldehyde must be `(Me)_(3)` C-CHO
Therfore, the structure of compound (A) is : (Proceed revers)