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Worksheets

Alkenes & Alkynes

Total questions: 21

Worksheet time: 11mins

Name
Class
Date
1.

In alkanes, each carbon atom is bonded to how many other atoms?

a)

two

b)

three

c)

four

d)

five

2.

Hydrocarbons that contain a double bond are classified as ___

a)

alkanes

b)

alkenes

c)

alkynes

d)

alkines

3.

Hydrocarbons that contain a triple bond are called ___

a)

alkanes

b)

alkenes

c)

alkynes

d)

alkones

4.

A hydrocarbon with three carbons and one double bond is called ___

a)

propane

b)

butane

c)

propene

d)

butene

5.

A hydrocarbon with three carbons and one triple bond is called ___

a)

propane

b)

propanone

c)

propene

d)

propyne

6.

Single bonds, such as those in alkanes, are also called ___

a)

theta bonds

b)

pi bonds

c)

sigma bonds

d)

omega bonds

7.

A double bond, such as those in alkenes, consists of ___

a)

a sigma bond

b)

a pi bond

c)

a sigma bond and a pi bond

d)

a sigma bond and two pi bonds

8.

Isomers that occur due to restricted rotation around a double bond are classified as ___

a)

structural isomers

b)

tautomers

c)

spin isomers

d)

cis-trans isomers

9.

In 2-butene, If the methyl groups are on the same side of the double bond, we call it ___

a)

delta- 2-butene

b)

cis-2-butene

c)

sigma-2-butene

d)

trans-2-butene

10.

In 2-butene, If the methyl groups are across the double bond from each other, we call it ___

a)

far-2-butene

b)

cis-2-butene

c)

cis-trans-butene

d)

trans-2-butene

11.

The triple bonds in alkynes are composed of ___

a)

two sigma bonds and a pi bond

b)

two pi bonds

c)

one sigma bond and a pi bond

d)

one sigma bond and two pi bonds

12.

Reactions that open up a double or triple bond to insert various atoms are called ___

a)

summation reactions

b)

addition reactions

c)

substitution reactions

d)

elimination reactions

13.

Specifically, when a hydrocarbon undergoes an addition reaction with a water molecule it's called ___

a)

hydrogenation

b)

hydroxynation

c)

hydration

d)

liquidation

14.

When three fatty acids are bonded to a molecule of glycerol it's called ___

a)

a triglyceride

b)

a saturated fat

c)

chained glycerol

d)

a polyglot

15.

In a saturated fat, all of the carbon chains in the triglyceride are ___

a)

alkanes

b)

alkenes

c)

alkynes

d)

pi bonded

16.

Which type of fat is most likely to be solid at room temperature?

a)

saturated fats

b)

monounsaturated fats

c)

polyunsaturated fats

d)

omega-3 fat

17.

Vegetable oils are generally polyunsaturated fats, meaning that they have lots of ___

a)

vitamins

b)

double bonds

c)

minerals

d)

stability

18.

What process do food chemists use to saturate an unsaturated fat, making it spreadable and stabilizing it?

a)

hydrogenation

b)

halogenation

c)

desaturation

d)

elimination

19.

Which type of fat has a double bond located three carbons from the end of the fatty acid?

a)

alpha-3 fats

b)

3-hydroxy fats

c)

trisaturated fats

d)

omega-3 fats

20.

Which type of fats, which are really bad for you, are created by partially hydrogenating vegetable oil?

a)

omega-6 fats

b)

omega-3 fats

c)

cis fats

d)

trans fats

21.

Almost all natural unsaturated fats are ___

a)

cis fats

b)

trans fats

c)

alpha fats

d)

omega fats