1971-12-08 — Page 26

真二第張七第二日一十月十年亥辛麽复 WAH KIUYAT PO

僑

報日僑華

三期星日八月二十年一七九一屡公年十六國民華中

育教付藥

36.5

1972英文中學會考試題預習專欄

18.25

堅道英文書院主編

2.4.

1972

中文中學會考試題預習專欄 O

化學科

#

(六)

英文科

許藩芳

English (6)

CHEMISTRY (6)

ggested answers to exercise

Model Answera

1. (a) companion

(b) irresolute

(o) room

(d) orippled

(f) clinging

(g) attempted:

(i) examine

(1).

(3).

(4)

(h) deliberately

(5)

(6) s

(7)%

(8)

(e) shouted

(3) grip.

(9)

(10) A

(11)

(12)

The three steps were:

(a) The writer and his companion were forced

to keep pace with the train.

(13)

(14)

(15)

} They caught hold of the handle-bar.

(7) 12 gm. of Mg will, combine with how many

grammes of oxygen to form Mgo.

32

12

They jumped to get on the train, but the writer was not successful in his attempt.

It was because his companion had a crippled hand,

It was because the train had been going for some time.

It was when he had seated himself in an

upright position and began to examine himself that he discovered that he had been injured, more than he thought.

His right foot was cut from the ankle,

The last part of the story is difficult to

believe because it seems improbably that a man

should have sustained so great in jury without realizing it.

當我們講到火是一個壞主人的時 候,我們是想到雷火不受控制的時候 把可能带来的嚴重的災難,如果一間房 屋失火,火焰可能饭及一個城市大部份 的地方,除非能夠很快地把头势加 以控制,森林大火,是人們和動物都 很怕的這些火是很難阻止,同時可 能燃燒好幾天,直至下雨,然後把头 勢撲滅,依照慣例在有樹木滿佈 的山邊,要留出没有樹木的狹長地 带,因此,即是有失災發生,波及其他 地方的危險程度心會較少在地 是一震之後,由火災帶來的災害是常常比

較由地震本身所做成的災害為犬,有 時候,煤礦着义,因是必需加以封開 這種火是可以燃烧多年,我們應要 特别小心来防止輪船失火,這時候 船在海上,货物當然會被燒去,船 上的人,也没有逃生的機會

Exercise 6

Exercise

Titrations usually involve the use

an acid

an alkali

an oxidizing agent

a reducing agent

an indicator

(2) 24 gm. of magnesium react with 98 gm. of sulphuric acid completely. Hence the equivalent weight of MA is

ᄇ

E

24

98

49

པ་ག༤༠

a

(3) 24 gm. of Mg after reaction with dilute HCL

produce 2 g. of hydrogen at N.T.P. Hence the equivalent weight of Mg is

A. 24

36.5

12

(4) 24 gm. of Mg after reaction with dil. -sulp-

huric acid produce 22.4 litres of hydrogen at N.I.P. The amount of acid used mus

A. 12 gm.

49 gm

98

2

gm. of Ng will react with how many grammes of hydrochloric acid to produce one m of hydrogen.

A 36.5 gm.

73.

gm

E. 11:2

A Re-write the following sentences as directed.

He used to play football. (Use playing")

(6) 12

The policeman was running after the thie (Start with "I saw"

(8) The number of parts by weight of an element which combine with 8 parts by weight of oxygen, or displace 1 part by weight of hydrogen is the

P. valency of the element.

Q. equivalent weight of the element

R. atomicity of the element.

S. vapour.

Sensity of the element;

atomic weight of the element.

(9) Since 36.5 gm- Hel contain 1 gm. replace

able hydrogen, therefore the equivalent weight of HCL is

P. 35.5

Q71

73. 36.5

18.25

(10) The equivalent

of sulphuric acid is

P. 48

98

S.

49

(11) The equivalent weight of acetic acid is

equal to the

it is a fatty

C. it conta, ular weight because

it is an

compound

one hydroxyl group

D. it contains four hydrogen atom.

E. it contains one displaceable hydrogen

atom.

(12) The equivalent weight of other compounds,

e.g. bases and carbonates, can be found by. calculating the number of gms of the comp pound which will react with the equivalent weight of an acid. Hence the equivalent weight of NaOH, sodužm carbonate, and KOH are respectively.

A. 106, 56 and 40

B'.

AA

E.

40, 106 and. 56

40, 112 and 106

40, 53 and 56

20, 53 and 106

(13) From the equation describing ti

reaction

between potassium bicarbonate and nitric

ively found to

acid, their e lent weight are respect-

and t

99 and 63

of Mg will react with how many grammes.

of HCL to produce 11.2 litres of hydrogen at. N.T.P

99 and 62

100 and 62

200 and

I have no friends. I want to depend on them. (Combine by using "to depand")

This house costa ten thousand dollara. (Use "worth"

The house once belonged to a riebman.“ (Use "owned")

I am sure that he is innocent.

(Use "innocence")

Yesterday our-car met with an accident.

(Start with "An accident")

We did not succeed in solving the problem, (Use "failed")

If he worked hard, he would sucosed. (Use "had worked")

10. We cannot calculate the depth of the river.

(Use "how")

B. Multiple Choice

1. I do not let him.

the story telling speaking

(1) to say

(2) to tell (3) tell

I cannot but

(1) laugh

(2) to laugh:

(3) laughing

(4) to be laughing

(5) being laughed

in bed for many day, (4) lie:

(2) lying

He has been

(1) laying

(3) Jaid

(1) rise.

(2) risen

(3) arise

(5) lain.

the pric

bamboo.

to his dishonesty that he was

4) as a result of

(2) owang

(3) because

(5) For

the boys were laughing and playing. (1) While reading my favourite story book (2) While I was reading my favourite book (3) While I read my favourite book

(4) Reading my favourite book

(5) While I reading my favourite book

so much as na goes.

8. I wish ne

(1) will not smoke

(2) does not smoke (3) did not smoke (4) amokes not.

(5) must not smoke

9. He is the same man

(1) that

(2) as

(3) which

came this morning.

whom

what

10. You may tell the newe

(1) any one:

(2) anyone

(3) every one (4) every people

(5) some peoples

the party.

The merchants were trying to

(4) raise

(5) arouse

(4) with

out of

5. In China paper is usually made

:(1) of:

(2) from

((3) by

6. It was

dismissed.

(1) due to