Which of Maria's behaviors are not appropriate for a leader? Maria is responsible for developing the farming community of a village in South Africa. She coordinates with her other team members to
develop new techniques to improve the farming in that village. She is always proactive in her actions. To avoid drought she has already made
provisions for irrigation facilities in the village. She also invented a new technology to increase productivity. She regularly appreciates her team
members for their constant efforts. However, Maria avoids communicating with farmers and understanding their needs.

hydrocarbons are organic compounds that contain only hydrogens and carbons. they can be saturated (those which contain only carbon-carbon single bonds) or unsaturated (those which contain carbon-carbon double or triple bonds) in nature. hydrocarbons can undergo several reactions like substitution, elimination etc.  

on substituting one or more hydrogen atoms in hydrocarbon it results in the formation of haloalkane. as the halogen atoms are large compared to the carbon and hydrogen atoms, due to which the molecular weight increases and the bond become polar because of presence electronegative halogen atom and results in the increase in boiling point of the haloalkane.

thus, the correct option is (b) that is the boiling point of the new compound increases on substituting a hydrogen atom with a halogen in a hydrocarbon.