Предмет: Химия, автор: Alya187

валентный угол молекуле ацетилена состовляет
1)109(о сверху) 28
2)180(о сверху)
3)104(о серху)
4)120(о сверху)

Ответы

Автор ответа: Tigrovayaliliya
0
Ацетилен - представитель алкинов, особенностью которых является наличие тройной связи и атомов углерода в sp-гибридизации с валентным углом 180°
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1.Edith is .... than Mary.
a) more pretty
b) prettier c) more prettier
d) the prettiest
2. I ...... to the cinema since last year.
a) didn't go
b) don't go c) haven't been
d) hasn't been
3. ...... in the class like their English teacher.
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4. "...... bag is this?" "It's John's".
a) Which
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d) When
5. Who was the woman ...... ?
a) spoke to you
b) that you were speaking to c) that you spoke
d) who you spoke
6. Look, children! Your uncle has ...... you a bag of sweets.
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b) taken c) brought
d) bought
7. There isn't a good restaurant ...... in this town.
a) anywhere
b) somewhere c) nowhere
d) everywhere
8. I ...... having lunch when she knocked at the door.
a) was still
b) still was c) was yet
d) yet was
9. I'm going out to the garden to pick some beans ...... it isn't raining.
a) for
b) so c) while
d) when
10. Simon is too busy ...... see her now.
a) for
b) to c) that
d) when
11. There wasn't anything interesting on the news, ...... ?
a) wasn't it
b) was there c) wasn't there
d) was it not
12. Run downstairs. Your sister ... for you.
a) wait
b) is waiting c) waits
d) waited
13. We ... holidays last year.
a) didn’t have
b) haven’t had c) wasn't having
d) don't have
14. Have you ever been ... Scotland?
a) to
b) at c) in
d) into
15. ... snowing hard.
a) There is
b) It is c) It has
d) I need
16. A bus driver is a person ... drives a bus.
a) which
b) than c) who
d) whose
17. Trafalgar Square is ... London.
a) under
b) in c) to
d) at
18. Do you know ... here?
a) somebody
b) nobody c) something
d) anybody
19. Do you really need so ... sugar?
a) much
b) a lot of c) many
d) lots
20. ... he speak English?
a) Do
b) Does c) Have
d) Is
21. I like ... tennis very much.
a) playing
b) played c) play
d) to playing
22. She can ... well.
a) to sing
b) singing c) sing
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a) No, it is black.
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24. We rest ... Sunday.
a) on
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27. Where…now?
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d) aren’t
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b) are c) isn’t
d) aren’t
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b) any c) much
d) more
34. She bought the house ….belonged to my relatives.
a) which
b) who c) where
d) when
35. Where ….you from?
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d) go
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