Chemical properties of alkadienes

Vocabulary-Lug`at
1.general formula --- asoyiy formula
2.link --- havola
3.sturucture --- tuzilish
4.isomerism --- izomeriya
5.properties --- xususiyat
6.aliphatic --- alifatik
7.cumulated --- kumulyativ
8.Nomenclature --- nomeklatura
9.reduction --- kamaytirish
10.important --- muhim
11.configuration --- konfiguratsiya
12.catalysts --- katalizatorlar
13.solvent --- solvent
14.called --- qoshimcha
15.addition --- qo`shish
16.interclass --- sinflararo
17.corresponding --- tegishli
18.ethylene --- etilen
19.amount --- miqdor
20.ethane --- etan

CLUSTER

Activity1

Complete the sentences using the text.
1. The chemical properties of such ……….. do not differ from alkenes. 2. On this basis, three types of double ……….. in dienes are distinguished. 3. The names of …………. are derived from the names of the corresponding alkanes (with the same number of carbon atoms) with the addition of the ending – diene. 4. The unhybridized p-orbitals of each carbon atom are perpendicular to the plane of the s-skeleton and …………..to each other, mutually overlap, forming a single p-electron cloud.
Words; parallel, alkadienes, bonds, dienes.

Activity2

Match the words on the left and the meanings on the right.
1 general formula 1 izomeriya
2 link 2 tuzilish
3 sturucture 3 alifatik
4 isomerism 4 asosiy formula
5 properties 5 muhim
6 aliphatic 6 nomeklatura
7 cumulated 7 xususiyat
8 Nomenclature 8 kumulyativ
9 reduction 9 havola
10 important 10 kamaytirish

Activity3

Work on warming –up activity. Teacher draws different figures and writes some words or
Numbers according to the theme inside of these figures. Students ask him in general questions
And find their meanings only ‘’Yes’’ , ‘’No’’ .

Activity4

Add –ing to the verbs.
1.get getting
2.swim ……….
3.stop ……….
4.run ………
5.dig ……….
6.play ………..
7.live …………
8.write ………….
9.drive ………….
10.sit …………..

Activity5

Fill in the blanks with ‘’is’’ , ‘’are’’ , ‘’was’’ or ‘’were’’.
1.It is Monday today. Anna and Mary …………… at work. It ………Sunday
Yesterday and they ……….. at home.
2 The birds ……… in the cagebut they ……… out of the cage now.
3 …….. Anna and Mary at work on Sunday? No they weren’t. They ……..at home.
4 It ………. Midnight. The children in bed. They ……… in the living-room three hours
ago.

Activity6

Fill in ‘’some’’ or ‘’any’’.
1 There are some tomatoes.
2 There is …… bread.
3 Are there …… oranges?
4 No, there isn’t ……. milk.
5 Are there …… children in the park?
6 Are there ……. Eggs on the table?

Puzzle cor net.

How many words can you find?

P	A	R	T	Y	Y	S	H	O	P	A
U	D	E	A	X	Z	Q	M	P	U	D
T	O	Y	I	C	L	E	V	E	R	Y
J	P	F	L	O	O	K	O	N	O	W
T	E	A	C	H	N	E	C	K	N	V
A	T	G	K	E	G	R	S	W	L	D
B	Y	E	S	T	E	R	D	A	Y	H
C	S	H	O	R	T	T	V	Z	A	L

Control questions

1.What is the general formula of alkadienes?
General formula CnH₂n-₂
2.What is the first representative of alkadienes?
The first representative is etadien
3.How does the stability of homologues change?
Bond stability increases in homologues
4.What is the state of aggregate of isoprene?
Isoprene is liquid.
5.What is the natural polymer of isoprene?
A natural polymer of isoprene, gutta-percha
6.What are alkadienes used for?
Various rubbers are used in paints, plastics and many other industries


INSERT

V	_	+	?
The first representative is etadien. Bond stability increases in homologues	Various rubbers are used in paints, plastics and many other industries	Another polymer of isoprene, gutta-percha also exists in nature. Gutta-percha has a rod-like chain structure due to the straightening of isoprene links	What other purposes can alkadienes be used for

IANSVERS
Activity1

1. The chemical properties of such dienes.
do not differ from alkenes. 2. On this basis, three types of double bonds in dienes are distinguished. 3. The names of alkadienes are derived from the names of the corresponding alkanes (with the same number of carbon atoms) with the addition of the ending – diene. 4. The unhybridized p-orbitals of each carbon atom are perpendicular to the plane of the s-skeleton and parallel to each other, mutually overlap, forming a single p-electron cloud.

Activity2

Match the words on the left and the meanings on the right.
1-----4 6-----3
2-----9 7-----8
3-----2 8-----6
4-----1 9-----10
5-----7 10-----5

Activity4

Add –ing to the verbs.
1.get getting
2.swim swimming
3.stop stopping
4.run running
5.dig digging
6.play playing
7.lie lying
8.write writing
9.drive driving
10.sit sitting

Activity5

Fill in the blanks with ‘’is’’ , ‘’are’’ , ‘’was’’ or ‘’were’’.
1.It is Monday today. Anna and Mary are at work. It was Sunday
Yesterday and they were at home.
2 The birds were in the cagebut they are out of the cage now.
3 Were Anna and Mary at work on Sunday? No they weren’t. They were at home.
4 It is Midnight. The children in bed. They were in the living-room three hours
ago.

Activity6

Fill in ‘’some’’ or ‘’any’’.
1 There are some tomatoes.
2 There is some bread.
3 Are there any oranges?
4 No, there isn’t any milk.
5 Are there any children in the park?
6 Are there any Eggs on the table?