In the above reaction sequence, the product (Q) is:
Write IUPAC names of the products obtained by the ozonolysis of the following compounds: (i) Pent-2-ene
(ii) 3,4-Dimethyl-hept-3-ene
(iii) 2-Ethylbut-1-ene
(iv) 1-Phenylbut-1-ene