Show how you would accomplish the following synthetic transformations. Show all intermediates. (a) 2,2-dibromobutane but-1-yne (b)

Question:

Show how you would accomplish the following synthetic transformations. Show all intermediates.
(a) 2,2-dibromobutane → but-1-yne
(b) 2,2-dibromobutane → but-2-yne
(c) but-1-yne → oct-3-yne
(d) trans-hex-2ene→hex-2-yen
(e) 2,2-dibromohexane → hex-l-yne
(f) cyclodecye → cis-cyclodecene
(g) cyclodecyne → trans-cyclodecene
(h) hex-l-yne → hexan-2one, CH3COCH2CH2CH3
(i) hex-1-yne → hexanal, CH3(CH2)4CHO
(j)trans-hex-2-ene → cis-hex-2ene