1973-03-10 — Page 21

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10 MAR 1775

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六期星 ® 日十月三年三七九一层公年二十六國民中

1973英文中學會考試題預習專欄

NMA KOMME M

頁一開第日六初月二年丑癸展夏

1973 中學入學試 試題預習專欄

化學科(二十)

智慧出版社生耀

1978

種

中文中纜會考試題預習專欄 英文科(二十)。徐有瞭。

NH.01

HC1

ANSWERS TO PREVIOUS EXERCISES

Uses

SUTION A: I

2.B

4.A

Chloride

Ammonium

B: II

any

the

48

5. 80 e

Sodium

TII

English (20)

Answers to

last week's exercise

jare, as follows:

suggested

(3) offered

(5) were driving

(7) would have

(9) broke

(11) embarassed

(13) check

going

(4) got

(6) thought

(8) had covered

10) felt

12) remembe

14 ão

(15) have driven (16) had

(17) shaking

(18) was given

(19) repaired (20) saying (21) will not break

RewILLE: one TULLOWing in indirec (reported) speech:

(1) "Will you be coming to see me at about the same time to-morTOW morning?" the patient asked the doctor.

(2) "Please don't bother to wash the dishes. I'll do them myself when I get back." Susan said to her mother.

(3) "Mary," said John, "I may be able to finish the painting to-day if you help me.

Rewrite the following using speech

(1) Robert asked John if he often want to the cinema.

(2) Peter asked Mary whether he should

open the window for her, Complete the following sentences by adding a, an, the, or some if necessary. Write the answer again- st its number given at the bottom of the passage. If nothing needs. to be added write X.

$

A sudden gust of (1) wind

rather sound against the

window.

made (2) I went to fasten it more securely, I caught (3) sight of my neighbour who used to sell (4) oranges and other fruit in the market, as he came into (5) view around the corner. He was carry- ing (6) old basket and one of (7) longest walking sticks I have ever. seen. When he came closer, I was. able to see (8) inside of the basket and its contents. Holding up (9) large ripe apple, he sudde -ly asked, "Would you like (10) apples?" "So he has gone back to his old trade," I said to myself.

|(1)

(3)

(5)

((7).

(9)

(2)

(4).

(6)

(8)

(10)

Each blank space shows where a word has been left out. Write: each missing word against its number at the bottom of the Passage:

Henry was not aware (1) the fact that he often annoyed his friends when he boasted (2)

having read more books than anybody else. Gradually he found that even his best friends

hía. were drifting away (3): Feeling sorry (4)

himself;

he decided to mend his ways, as he knew very well that he could not do (5)

friends for long. On their part, his friends were disgusted (6),

him, and would not have anything to do with him unless he would apologise (7)

- his behaviour. Finally it was agreed that he should give a tea party (8)· · · · way of settl-

ing their dispute, and his friend: were expected (9).

three and this

four o'clock (10)

afternoon.

(1),

(2)

(3),

(4)

(5)

(6)

(7)

(8)

(10).

(9).

Complete each of these sentences by adding one word in each blank'space:

英文科(二十)

Where do you live? 2. When do you go home?

3. How are you?

4. Whose dog is this?

Then do people sleep?

SECTION: A (sultiple choice)

I. Choose the best answer by drawing

firm line across the correct box.

1. James called.

Ca with

E. on

Uses

In dry batteries,

Leclanche' cells

. In the manufacture of caustic soda, chlor ine, and sodium by electrolysis.

2. In the manufacture of washing soda by the solvay process. 3. To the manufacture

of bleaching powder, and other sodium compounds.

As a fertiliser. 2. As a source of caust- ic potash and potasa- ium nitrate.

potassium [1,

B to

last night. C. for D. at

A B C D E

Calcium

You need not pay.

of charge,

(A. to B. in

3. for)

.□□□□□

it is free

Zinc

at.

A B C D

ᄆᄆᄆ

Silver

The brave soldiers fought

their enemies.

(A. upon B. against

D. with E. off)

for

A B C D E

I am accustomed.

night.

take a bath at

(A. to

E. from)

5. They don't agree with: B.sto

for C. at

A B C D E

5. DOODD

SECTION

I. Write the missing words in the pian

spaces.

Rxample: She is pretty

He hurt his lig,

2. They like collecting stamp

have a new car,

n't she?.

There weren't any trees by the river?

5. She cleans her face

III. In the passage below there is no

punctuation.

Frite the passage in the space given,

putting in all the punctuation and Capital letters,

you dont Loox well today.

ive a headache, harry tom replied

cant you do something for it

yes ill see a doctor this afternoon

(a) Although the child had been repeated warned to keep the glass, he kept running all over it. (b) When the speaker broke

and cried, the meeting broke

can confusion.

(c) All his friends assured nim

that they would stand him if he should stand the presidency.

(d) When he was told that the

matter would be put

the committee, ne realized that he could no longer put making a decision. The official said that the situation would be looked

and that anyone who needed help would be looked

1. As a drying agent, 2. As a source of

Calcium metal

1. As a dehydrating

agent.

Its solution in cone. hydrochloric acid is used as a flux in soldering.

In

making printing- out papers in photography.

Tests for chlorides, Bromides and Todides

With silver nitrate solution, it gives a white precipitate, insoluble in nitric acid but soluble in ammonia. KC1+ AgNO

→KNO3 + AgC1 Chlorides give chlorine wich heated with sulphuric acid,. and manganese dioxide, 4NaCl + 4H2SO4 + Mr02

+waнSU 5+ MnCl2

2H20

When a mixture of a chloride, concentrated sulphuric acid, and potassium dichromate are: warmed, red vapour of chromyl chloride, Cro2C12 are formed. This gave yellow precipitate of lead chromate when passed into lead acetate solution.

Cro2012

H2Cro

→H2Cro + 2HC1 (CH3COO),Pb

PbC10 ↓ + 2CH-COOH;

Chromyl chloride also dissolve in caustic soda solution to form yellow sodium chromate. Bromide with silver nitrate solution to form a pale yellow silver bromide, slightly solub le in ammonium hydroxide. KBr + AgNO2

KNO3 + AgBr

Iodide with silver nitrate so- lution to form a yellow silver iodide; unsoluble in ammonium hydroxide.

KBr + AgNO3

Exercise

Part I

KNO + AgÏ ↓

1. Which or the following substans pes can dissolve readily in dilute hydrochloric acid?

1. Zinc sulphide

2. Lead chloride

3. Barium sulphate 4. Silver nitrate

5. Copper sulphide

Which of the following alternat- ves is correct?

A. I and 2 only B. I only

0.I and 5 only D. I and 4 only.

E. 2, 3, and 4 only

2. Which is the right way to dissolve hydrogen chloride into

ater..

A. put the delivery tube below

the surface of water.

B. put the delivery tube a

little higher from the sur face of watër.

C. use rubber tube instead of

the delivery tube.

use an inverted funnel in-

stead of the delivery tube

and put it below the surface. of water..

E. use an inverted funnel inert;

stead of the delivery tube

and put it a little higher from the aurrace of water.

Silver chlüride

A. is a yellow precipitate. B. is a white precipitate in

soluble in excess alkali. C. is a white precipitate

soluble in excess ammonium hydroxide.

is only precipitated 1r the original solution was made by dissolving silver nitrate in water.

is a pale-yellow precipitate insoluble in excess ammonië solution.

The Calcium chloride can used for (as)

A. bleaching

B. a fertiliser

C. dehydrating

D. Drying

E. the manufacture of washing

soda

One of the following special properties is possessed by hydro- gen chloride

A. gives a white rume witn

ammonia

B. burna with a "pop" souna.

decolourizes the acidified potassium permanganate solution

AG

burns with a blue flame. reacts with carbonates to liberate carbon dioxide

6. The hydrochloric acid stored in the Kipp's apparatus: 18 always

It is because green.

P. the presence of chlorine Q. the presence of ferrous

chloride

the presence or a1IUTE hydrochloric acid

the presence of ferrio acid the presence of iron.

When a piece of copper is immer -sed in dilute hydrochloric acid

P. oxygen gas is evolved

Q. hydrogen gas is evplvea R. chlorine gas is evolved S. Copper chloride is deposited T. No visible reaction occurs.

Hydrochloric acid is prepared on a commercial scale today

by heating rock salt with concentrated sulphuric acid Q. form the by-products in the

manufacture of sodium hydroxide

R. by the electorlysis of the

brime

S. by extraecium frum, LUD

natural scoure

as a by-product in vne solvay ammonia process

9. When hydrogen chloride is dissolved in dry toluene the solution will not conduct elect- ricity. Which of the following is (are) the reason(s)?

Hydrogen chloride is not an electrolyte

Tolueneris a non-10nising solvent

there are no aons presen in such a solution

1 only

Band 2 only

R. 1 and 3 only

S. 2 and 3 only To all of them

10. Which of the following is NOT a common property of true metallic chlorides?

P. Ionic bonding

Q. Volatility

R. High melting point.

S. Inactivity to water T. Crystalline forms

Part II

(a) Draw a net labelled dia-, gram of the apparatus you would use for preparing a solution of hydrogen chloride in dry toluene, and show, in tabular form, how the proper- ties of this solution differ

from those of dilute hydro- chlorid acid.

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