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a+HCl->d 2d+2Na->2,3dimetil butan+2NaCl

Răspuns :

CH2=CH-CH3 + H-Cl --> CH3-CH2-CH2(Cl)

2CH3-CH2-CH2(Cl) + 2Na --> CH3-CH(CH3)-CH(CH3)-CH3 + 2NaCl