Class science A lunar eclipse occurs when

Question 22 options:

The moon passes through earth's shadow.

The sun passes through the moon's shadow.

The sun passes between the earth and the moon.

The moon passes between the earth and the sun.

1 question

The moon is in earths shadow

Explanation:

Lunar) Moon in earths shadow

Solar) Earth in moon's shadow

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.