Ch ch 3 2. Ch2-ch2-ch3. Ch3-ch2-Ch-ch3-Ch-ch3-ch2-ch3-ch3. Ch3-ch2-ch2-ch2-ch2-ch3. Ch2 Ch ch2 ch3. Ch3-ch2-ch2-Ch-ch2-ch2-ch3. Ch3 Ch br Ch br - ch3. Ch3-Ch-ch2-ch3+br2. (Ch3o)2chch3. Ch3ch2br 2br2. Бензол и хлор alcl3. Бензол ch2 Ch ch3 alcl3. Бензол - Ch=ch2 + CL