Week 7 Flashcards
Cycloalkanes is also called
alicylic compounds
Cycloalkanes (alicylic compounds) are___________ containing C-C and C-H single bonds only
saturated cyclic hydrocarbons
What is the simplest member cycloalkane?
cyclopropane (C3H6)
Cycloalkanes are represented as_______
polygons
It is the most studied, understood and is considered the most important cycloalkane
cyclohexane(C6H12)
Classifications of cyclic compounds
(1) Homocyclic compounds
(2) Heterocyclic compounds
These are cyclic compounds having atoms of the same elements as their ring members
Homocyclic compounds
(True or False)
Cycloalkanes are represented as polygons with the understanding each corner to a C atom where requisite number of H atom is attached considering its divalent nature
False
(tetravalent)
Homocyclic compounds consist of C atoms only are known as
Carbocyclic compounds or carbocycles
These are cyclic compounds having atoms of different elements as ring members including carbon atoms
Heterocyclic compounds
(True or False)
Heterocyclic compounds are cyclic compounds having atoms of the same elements as their ring members
False
(different elements)
(True or False)
Homocyclic compounds are cyclic compounds having atoms of different elements as ring members including carbon atoms
False
(same elements)
(True or False)
Heterocyclic compounds may contain oxygen, nitrogen, sulfur or halogens in place of C atom in the ring
False
(not halogens)
We name compounds containing two fused or bridged rings as ________
bicycloalkanes
(True or False)
We interpose an expression in parenthesis within the name that denotes the number of carbon atoms in each bridge
False
(brackets)
First two members are_____ ,next three members are _____,_ and higher ones are _____
gases, liquids, solids
(True or False)
Cycloalkanes are soluble in water, alcohol and ether
False
(insoluble in water)
(True or False)
Cycloalkanes’ boiling points show a gradual increase with increase of molecular mass
True
(True or False)
Cycloalkanes’ boiling points are lower than those of isomeric alkenes or corresponding alkanes
False
(higher)
(True or False)
Cycloalkanes’ density increase gradually with increase of molecular mass
True
(True or False)
Lower numbers are lighter than water and floats over it
True
________with halogens in the presence of light occurs in all cycloalkanes
Substitution reaction
Lower members undergo _____ with H2, X2 and HX.
addition reaction
(True or False)
Substitution reaction with halogens in the presence of light occurs in all cycloalkanes
True
(True or False)
Lower members undergo substitution reaction with H2, X2 and HX.
False
(addition reaction)
(True or False)
The tendency of forming addition compounds increases with increase in size of ring
False
(tendency of forming addition compounds decreases)
It is an increase in energy when tetrahedral bond angles deviate from the optimum angle of 109.5°
Angle strain
Cycloalkanes are halogenated in the presence of sunlight or UV light like alkane
Free radical substitution
α-ω from dihalides having halogen atoms on two ends of carbon chains (α-ω dihalides) with Na or Zn dust gives rise to the formation of cycloalkanes called
Intramolecular Wurtz Reaction or Freund reaction
This can be used to prepare cycloalkanes from three to six carbon atoms
Intramolecular Wurtz Reaction or Freund reaction
In the medical application, cycloalkanes are used as an __________ in the production of drugs
organic solvent
(True or False)
Cycloalkanes are utilized in the manufacture of hair products as well as in the food industries
True
The cycloalkane called ______ is used as an anesthetic agent in medical field
cyclopropane
(True or False)
The cycloalkane called cyclohexane is used as an anesthetic agent in medical field
False
(cyclopropane)
(True or False)
Carboplatin which is derived from cyclopentane is used to treat cancer
False
(cyclobutane)
is derived from cyclobutane is used to treat cancer
carboplatin
(True or False)
Some of cycloalkanes are used for pigmentation purposes and also used as fragrances in perfume manufacturing sector
True
Some of cycloalkanes are found in the _____ of plants and animals as _________
tissues
steroids
