which of the following explains this structure

Bond angle in PH_3 si closer to 90^(@) while that in NH_3 is 104.5^(@) . Which of the following best explains this structural feature?

Bond angle in PH_3 si closer to 90^(@) while that in NH_3 is 104.5^(@) . Which of the following best explains this structural feature?

Answer the following questions : Explain the structure of Benzene.

The following theory best explains the structure of the plasma membrane :

Which one of the following reactions is not explained by the open chain Structure of glucose: