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Organic Chemistry > Week 7 > Flashcards

Week 7 Flashcards

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1
Q

Cycloalkanes is also called

A

alicylic compounds

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2
Q

Cycloalkanes (alicylic compounds) are___________ containing C-C and C-H single bonds only

A

saturated cyclic hydrocarbons

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3
Q

What is the simplest member cycloalkane?

A

cyclopropane (C3H6)

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3
Q

Cycloalkanes are represented as_______

A

polygons

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3
Q

It is the most studied, understood and is considered the most important cycloalkane

A

cyclohexane(C6H12)

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4
Q

Classifications of cyclic compounds

A

(1) Homocyclic compounds
(2) Heterocyclic compounds

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4
Q

These are cyclic compounds having atoms of the same elements as their ring members

A

Homocyclic compounds

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4
Q

(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

A

False
(tetravalent)

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5
Q

Homocyclic compounds consist of C atoms only are known as

A

Carbocyclic compounds or carbocycles

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5
Q

These are cyclic compounds having atoms of different elements as ring members including carbon atoms

A

Heterocyclic compounds

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6
Q

(True or False)
Heterocyclic compounds are cyclic compounds having atoms of the same elements as their ring members

A

False
(different elements)

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6
Q

(True or False)
Homocyclic compounds are cyclic compounds having atoms of different elements as ring members including carbon atoms

A

False
(same elements)

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6
Q

(True or False)
Heterocyclic compounds may contain oxygen, nitrogen, sulfur or halogens in place of C atom in the ring

A

False
(not halogens)

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7
Q

We name compounds containing two fused or bridged rings as ________

A

bicycloalkanes

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8
Q

(True or False)
We interpose an expression in parenthesis within the name that denotes the number of carbon atoms in each bridge

A

False
(brackets)

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9
Q

First two members are_____ ,next three members are _____,_ and higher ones are _____

A

gases, liquids, solids

10
Q

(True or False)
Cycloalkanes are soluble in water, alcohol and ether

A

False
(insoluble in water)

11
Q

(True or False)
Cycloalkanes’ boiling points show a gradual increase with increase of molecular mass

A

True

12
Q

(True or False)
Cycloalkanes’ boiling points are lower than those of isomeric alkenes or corresponding alkanes

A

False
(higher)

13
Q

(True or False)
Cycloalkanes’ density increase gradually with increase of molecular mass

A

True

14
Q

(True or False)
Lower numbers are lighter than water and floats over it

A

True

15
Q

________with halogens in the presence of light occurs in all cycloalkanes

A

Substitution reaction

15
Q

Lower members undergo _____ with H2, X2 and HX.

A

addition reaction

16
Q

(True or False)
Substitution reaction with halogens in the presence of light occurs in all cycloalkanes

A

True

17
Q

(True or False)
Lower members undergo substitution reaction with H2, X2 and HX.

A

False
(addition reaction)

18
Q

(True or False)
The tendency of forming addition compounds increases with increase in size of ring

A

False
(tendency of forming addition compounds decreases)

19
Q

It is an increase in energy when tetrahedral bond angles deviate from the optimum angle of 109.5°

A

Angle strain

20
Q

Cycloalkanes are halogenated in the presence of sunlight or UV light like alkane

A

Free radical substitution

21
Q

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

A

Intramolecular Wurtz Reaction or Freund reaction

22
Q

This can be used to prepare cycloalkanes from three to six carbon atoms

A

Intramolecular Wurtz Reaction or Freund reaction

23
Q

In the medical application, cycloalkanes are used as an __________ in the production of drugs

A

organic solvent

24
Q

(True or False)
Cycloalkanes are utilized in the manufacture of hair products as well as in the food industries

A

True

25
Q

The cycloalkane called ______ is used as an anesthetic agent in medical field

A

cyclopropane

26
Q

(True or False)
The cycloalkane called cyclohexane is used as an anesthetic agent in medical field

A

False
(cyclopropane)

27
Q

(True or False)
Carboplatin which is derived from cyclopentane is used to treat cancer

A

False
(cyclobutane)

28
Q

is derived from cyclobutane is used to treat cancer

A

carboplatin

29
Q

(True or False)
Some of cycloalkanes are used for pigmentation purposes and also used as fragrances in perfume manufacturing sector

A

True

30
Q

Some of cycloalkanes are found in the _____ of plants and animals as _________

A

tissues
steroids

Organic Chemistry (8 decks)

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