The chemist has available four different sizes (based on maximum volume) of graduated cylinders. if the chemist desires to measure 8 ml, which of the following cylinders is the best choice (based on the criteria given in the class handout)? question 1 options:
a) 25 ml b)50 ml c)100 ml d)10 ml

The correct option is: D)10 mL

Explanation:

A measuring cylinder or a graduated cylinder, is a narrow cylinder-shaped, chemical resistant, transparent equipment which is used to measure the volume of a given liquid.

Since the 10 mL graduated cylinder has 0.1 mL grading divisions. Therefore, a 10 mL graduated cylinder will precisely measure 8 mL liquid.

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.