1971-11-17 — Page 25

HOV 1971

育教儒頁一第張七第二日十三月九年亥辛歷夏 WAH

PO

H 報日橋華

三期星日七十月一十年一七九一瑟公年十六國民中

育僑華

1972中學入學試試題預習專欄

智慧出城社主編

the

.600

8. A dog is

acme useful animal.

英文科

so

1972英文中學會考試題預習專欄

ANSTERS TO PREVIOUS EXERCISES

an

SECTION

3.B

4.B

9. That is R. the

time

your watch?

堅道英文書院主編

7. E

8. T:

10. S

BILY

化學科

(三)

品

06

since

like

5. about

7. into

from

..On 10. up

CHEMISTRY (3)

SECTIO

on, off, into, to, towa

Pany

-the

John likes

some genes except

Suggested answers to exercise 2

000 5

over, on, into.

SECTION

(multiple choice);

unoose the best answer. UTAN & ILI Lane anross

the correct box..

(2)

(3)

(5)c

(6)

(7)

(8)

(10)

(11)

(13) B

(14)

(15)

ཕུ་。་སྐྱ་༔

(4)

B. an.

Example: This is G. the

best fila

(12) R

Dome E. any

(16) B

Exercis

I have ever seen.

The little boy is as playrul

·A.. a:

Ban

the kitten.

some

any

bbo

.000

bb

SECTION B

II. Put e, an, the, some or any in the right gap. If no

word is necessary, write in the blank space,

Example: X pride goes before a rall.

1. Our teacher has not marked

2. Kr. Cheung bough

honest 1s

test papera yet.

new piece of furniture.

best plicy.

awkward person cannot move quickly.

Thed

spend

money with me yesterday but I didn'

The mathematical axpression or the ideal gaz equation is

any the

All of G. some sudden the car

2000

.D.

an

topped.

A.

B. an

Tseng is Cathe

honest man.

D. some B. any

(2) At constant pressure, what volume would a given

mass of carbon dioxide occupy at 270, if ite

volume was 273 0.0. at 0° Celsius.

273 020.

4. Pleasċ give your seat to

A any B. the

some

handicapped

·300 0.0..

27 C-C

27 litres

22.4 litres.

At constant temperature, what volume would a given mass of hydrogen occupy at a pressure of 20 mm.. if its volume was 273 0,0, at 40 mm. Hg.

20:11tres.

40 litrea

c. 273 0.0

136.5 0.0

B. 546 0.

百釀

品

There

the

dir

on

my shirt.

000

som

Pany the

Yesterday R. some suropean came

our school.

7. Please lend me a pen andR.

ink.

car stopped and

7. Michael's house is next to

bread and

had no

driver got cut.

hotel.

butter is his favourite food.

or moving out,

boya walk or cycle to scho

IIT. Put

the, some or any in the suitable space.

Last Sunday Mrs. Lan went shopping with her

friend, Mra. Wong, They wanted to buy

lot of

First of all

Mrs. Lam bought

they went to

fruit stall

pound of grapes,

pineapple arid

bunch of bar

she wanted to buy

peaches, but

that stall were not fresh.

needed

Then they came to

pears, Likewise

'peaches at

So they went away.

big shop. Mrs. Wong

дек dress for her

cloth to make.

daughter. She looked for it

long time, but she couldn't find

good material that she liked.

last she bought

dress in

shop.

ready-mad

The two ladies spent about

half shopping and talking.

next

hour and

(4) At -10°C and 747 mm., a gas occupied 1.50 litres.

Find its volume at ST.P.

1.53 litres.

1.53 0.0.

0.77 0.0.

3.06 litres.

263 0.00

(5) When a gas is collected over water, and ita

volume is required accurately, we have, first of all, to equalise the water levels inside and outside the collecting vessel, The pressure of the collected gas will then be equal to

the atmospheric pressure

the barometrio reading..

the atmospheric pressure plus water. Vapour pressure

the atmospheric pressure minus water vapour preasure at that particular temperature.

the water vapour pressure at that particular temparature-

(6) 15 ml. of air were collected over water at a temperature of 16° C. The barometric reading was 745 min. Tho saturated vapour pressure of

ter at 16°c of the air

13 mm. Calculate the volume NT.P.

ml.

12.9 ml.

17)

When gases react, they do so in volumea which bear a simple ratio to one another, and to the volumes of the gaseous products, when the volumės are measured at the same tempera- tura

and pressure.

Equal volumes of all gases under the amas conditions of temperature and pressure contain squal numbers of molecules.

The number of atoms in one of its molecules. The volume occupied by one gram-molecule of the gas at N.T.P. i8 22.4 litres.

The rate of diffusion of a gas be inversely proportional to the square root of its density.

8) Which of the above statements is Gay-Lussao's law

of ocobining:

mes?

(B, C, D,

Which of the above statements in Hypothesis?

gadro'”.

(10) Which of the above atatements is the atonicity of

ap element?

DB

(11) Which of the above statements is the G.M.V.

gas?

B,C,D,

(12) Which of the above etatements is Graham's law

of diffusion?

(13) 28 grammes of Nitrogen at N.T.P. cocupy

28 litres

11.2 litres.

224 litre

44.8 litres.

(14) 2 gm. of hydrogen and 71 gm. of Chlorine at N.T.P.

have different number of molecules and occupy different volumes

bave an equal number of molecules but occupy different volumes.

have an equal number of molecules and occupy equal volumes ¦

have different numbers of molecules but Pooupy

qual yolunea,

have different numbers of molecules and occupy different volumes.

(15) One molecular weight in grammes of all elemente and compounds contains the Avogadro's number of molecules, which is equal to

a fixed number 22400.

fixed number

6 x 1023 vnion varies according to the temperature and pressure,

22400 at S.T.P.

D. B

3 x 10

T.P.

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