Unequal sharing results when there is significant difference in electronegativities. The more electronegative atom(s) draws bond electrons closer, leaving the less electronegaâ¦tive atom(s) slighty positive. The result of unequal sharing of electrons is the formation of polar bonds. I'm an undergraduate in Physical Sciences stream.
By 1831 cholera had arrived in Hamburg, and the first case in England was reported in October 1831 in Sunderland. The first case in East London was on 12 February, 1832.For all the fear attached to this new disease, only about 800 persons died of cholera in the East End.n the summer of 1831, after news had reached England that a cholera epidemic had arrived in the Baltic ports, Charles Greville said in his Memoirs [ chapter 15 ].
The cause of cholera is infection by the V. cholera bacteria. These bacteria were discovered in 1883. The German bacteriologist, Robert Koch (1843-1910), studied the disease during an epidemic in Egypt. He found a bacterium in the intestines of those who had died of cholera but could neither isolate the organism nor infect animals with it.