The scientific community dismissed John Needham’s attempt to prove spontaneous generation. What was the reason that they gave? * A. By sealing off the flask he deprived the environment of air, a requirement of spontaneous generation

B. He used the wrong type of flask

C. He left the flasks open to the air for too long

D. He did not boil his broth long enough and the flasks were not cleaned prior to the experimenter.

He did not boil his broth long enough and the flasks were not cleaned prior to the experimenter

The scientific community dismissed John Needham’s attempt to prove spontaneous generation. What was the reason that they gave

c is having 4 valence electrons and is bonded to three hydrogens and one sulphur atom, therefore, the number of bond pair is equal to four. as all the valence electrons are used in forming the bonds so, there is no lone pair left on carbon.

s is having 6 valence electrons and is bonded to one other sulfur atom and one carbon atom, therefore, the number of bond pair is equal to 2. as only two valence electrons are used in forming the bonds so, four electrons are left. therefore, two lone pairs are present on s.