1977-12-02 — Page 27

華僑日報 All

刊特院三華東育教 頁三第張七第 日二十月十年巳丁歷复 WAH KIU YAT

̇Chemistry (9)

育教僑華

Question 13

學能推理練習專欄

智慧社主編

文字推理練習二十

綜合練習()

選出下列每週最適當的答案,她在它的下面 一橫線

以下各類是一個句子,就選出最適當的簽到 以完成該向

D-

學節蚪森正如月份對: TAX

B4 E

巡海升律犬王和一粟料

CAM

DFA EД4) 迷衣對毛颇正如大农州

A BRR

冬天

E呢绒)

财政司對财政正如律政司對

*A*#

安全

B治蛋C警察 E警署

以下各题有六個項目,其中四個是同類 的,其餘兩個跟进四個並不同類,試選出還, 兩個項目之

6. (1) (2) (3) (4) (5) (6)

E15) Q16) R125) S3141 T(36)

5

P(116). Q(2)3) R 26

(2) G..

8. (DIA,

P4

161

S(4×5), T(46)

(3)酸亚

Q1245) R34 S136) T:41(5)

13款 12

AĐA I PËR

R25 (2) *

S 34) T 5×6)

16 Q2×4)

10, (1¤μ

P114 Q1215) R12×6) $134 T456 就在下列挪句的括號內,選出最適當的答案

11:我們若要徹底(A解釋踔瞭解

C譔解

3.D.分解E和解一细问题、必须深入研究。

12.那货船法想濤中(A顯训 BM逦 CMU D硎沛E顛溲小心觸續它離轮的航行,

13.我理(A遞歉:B遞失犯罪過黜惭愧

抱歉不能参加你們的在瘸們

14忠成常常誤事:他不是储(A鲶雄廷机潭

C%DUSEU NOMENA

15.明天是我的生日。媽媽我瘦A疟隗B

谜 C安排安置、E安定)了豐富的節

1.,.

16,他最愛在别人面前誇大的以“秘飾Q褡 師寶服飾5修飾-T贊飾)自己的越糟心

17.第嫁們不停地争吵,使他無法(P安琳,安 靜!日实施S安铫T安分地湿習功課, “待役們(P欣慰 Q酸罐R欺癣 S哒

∵都屬下列兩段文字,然後回答所附的問題: 姊姊比媽媽高而比哥哥矮,爸爸比哥哥高,

19.新他們互人依高後的次序排列起象:

S***.

T妹妹。

波子一袋,共有丘糖颜色。其中白波子是工 波子的两倍,能波子是白波子的一半,黄波子最

綠波于最生

S⭑NA

(1∙D

02: C (3) A4 E58 6R.

STB12B3E4D

信息 19.S20P.

1978

「中學會考試題預習專欄

明德社主講

化學(九)朱宏林

1.65 g.of a mixture containing ammonium eulphate and sodium sul- phate were made up to 250 cm of aqueous solution. 25 cm of this solution were boiled with 50 om 0.3M sodium hydroxide and the ex- cegs alkali neutralised by 25.4 cm of 0.1M hydrochloric acid.. (at,wt, N=14,H=1, $=32, 0=16)

(a) write down the equations for:

the reactions involved.

(b) Calculate the percentage of

ammonium sulphate in the same ple mixture,

Question 14

(a) When a dark-brown solid A in

a test-tube is treated with dilute sulphuric acid, a dol- 'ourless gas B of pungent smell

in evolved and what remains in the test-tube is a păle- blue solution C which, on tre- 'ating with ammonia solution,

gives a bluish-green precipi- tate soluble in excess ammonia solution.

(b)

When the colourlesa gas B is passed into an aqueous solut− ion of potassium cichromate, the solution turns green and a yellow precipitate is seen. When the colourless gas: Bis: passed into an aqueous solut vion of lead(Iī)nitrate, a

black precipitate is seen.

-Identify and name. the

substances A, B, C, D, E and F.

(ii) Give ionic equations for.

(1) the formation of

gas B

(2) the formation of:

the precipitate D; (3) the formation of

the precipitate F.

(iii) Why is the precipitate

D soluble in the excess ammonia solution? <

What is the colour of the solution obtained?

(iv) Draw a diegram to show.

the electronic structure of the gas B

mixture of 10 cm of a gas gous hydrocarbon . and 200 cm) oxyren was exploded. The re- action mixture, on cooling to

had a

the room temperas re-

volume of 170 op

duced to 120 m on sharine

with potassium hydroxide sol- ution..

(4) Pind tie molecular forine

ula of X.

(ii) Give the structural fore

mulae ind names for 11 the possible iso:ers of by irocaroon-N.

fuestion 15

(a) Test-tuike A contains some

aqueous solution of iron(II)

·sulphate.

Test-tube B contains some: aqueous solution of iron(III) chloride,

·(1)

Name the chemical ape-

cies resposible for the pale green colour of.

the solution in the

tube .A.

日二月二十年七七九一曆公年六十六國民索中

(1) Plot a graph of magnific-

報日僑

would be the ratio of the substances formed l and N

(ii) Name the chemical spew

cies resposible for the yellow colour of the solution, in the tube B.

(iii) If sodium hydroxide so-

lution is added to the tubes A and B respect ively) what would you observe in each tube?". Give ionic equations for their formations.

(iv) Would the substances

observed in tubes A and B disappear if an exce ss of sodium hydroxide is added?

()

On exposing to the air. for some while, the sub stance observed in the tube A in (iii) gradu- ally attains the colour. of the substance obser ved in tube A. Expplain the observation briefly, giving eqautions where appropriate.

(b) The set-up as shown in the

diagram: below is used for: the electrolysis of sodium chloride with carboneled trodes.

(1)

Theostat

battery

M

at electrodes

respectively?

1978

中學會考題預習專欄

Mill & Dale Cons

理(九)香榮家 物

PHYSICS (9)

Exercise 5lleat, Light,

Sound and Wave Motion

In an experiment to det mine

the specific latent

heat of fusion of ice, the following experimental data is obtained.

Haas of copper calorimeter

= 0.06kg Másg

of copper calorimeter.

water

-160kg.

Main of copper calorimeter.

water

0.1845 kg

Initial temperature of

calorimeter and water

sodium chloride

35 Pinal

The bulb lights up. only after water has been added to disa olve the sodium chl- oride solid. Why?

(ii) What would be forued

around the electrodes w:andy respectively? Give the ionic equa- tions for the react- ions.

(111) What effects wond

each of the following changes have on tiie rate of electrolysis? (1) when the current is increased

(2) when the elects

rodea are placed: nearer to each other.

If a few drops of red litmus solution have been added to the BO- lution, what would you observe around the electrode N?.

When a current of O.3.

amperes has been.

passed for 2 minutes

and 11 seconds what

temperature of mixture

13.86

Specific heat capacity

4200 kg

Specific heat capacity of

copper.

420 J kg

Find the specific latent heat of fusion of ice accord-

ing to the above data,

In an experiment to deter- mine the focal length of

e onverging lens, the lengths: of the objeet and the real image are measured for different image distances

Image distance Length of

(in meter )

·0.3

image(in m)

0.01

0.02

·0.03.

0.05

0,06

POS

ation against image distance

(ii) Determine the focal

Length of the converging

Lehae from the above graph.

A string under tension is

observed to vibrate with a

frequency of 60 Hz in ita fundamental note emitted

when supports are 2m apart.

The mass of the string is

0.05kg。

(i) Pind the velocity of

the.transverse wave

propagating in- string.

(ii) Find, the tension in

the string. (iii) if the velocity of

sound in air is 330 ma

what is the wavelength of

the fundamental note heard

the ear:?

a) Figure 1 shows a need- le is placed 0.2m from a concave mirror of focal: Jength 0.15m.

Figure

Find(i) the magnification (ii) if the length of the needle is 0.1m, find the length:nt ite image.

(b) The needle now is placed

along the principal axis

of the concave mirror, find the length of the image. (see figure 2.).

Figure 2,

5. How far must an object be

placed from a lens of focal

ng 0,16m in order that the area of the image formed by the lens, may be lo times

of the object 7

the area

十一张,楊國民一百九十]]屬及

敬請各界慷慨支持 東華三院義唱籌款

發北道

之睡牛班

間。八下細加。

有一個是由三院廚照蹟;每一百個學生,有一個是三院的學生。不均每年獲得東華三院服務的市民 “今日的東海三碗公婆就會提供現代化的服務,包括登療、教育、托克、安老、曹仁等。根 爲你的醫院,爲你的學校,請捐助東華! 據扰計劃示,在饲在香港出生的克,有一叶是在院出生,每十能在安老院安演晚年的老人,一棒糖外運 由於本港人口不底用加,三院的服淋杰随灣社官的鳥求,相繼滑向。在聯董事為不斷推進瑤宮主萬天橋,窩打老道,,將在「慈航」上说演

聾中、安老院、老人宿舍、托克斯、克業中心及廣展馆。

‘爲東三歎,所安 麥,難打得慢,常就長| 批畫賞州西你,對

外说並由各大银行代收請款。 歡樂今克奇置新力美出 在伤名慕明星砍里共夏普品

• 東華三院義唱歎

三院董事局悬請各位畫長二章、紐【導鹼,使有需要的人士,獲更多照顧及射助。 無線電視今晚舉行

【無華

的設計,而 此一百元,了 及具有創意著稱,大脚捎的欺,以蛋 龍石接地下出案,这蒡黑崴育主其進行

劍君十費~山沙進入一,由九

賞的

漿籤: 佈得斬

鳳山三

佰日,在「歌樂今俺

A PLATTERS.鼎南英,爲慧致命。 在感冷的天黑下跳水, 的洪精雕珠,比外THE 一致,底色都獲得很拉風波也將領軍南狂,因往直前。今快,博女林

流推。這我打下來的

一金會綱接外逗留約二十一點痛。」

「歡樂今青」爲集

*電話欸隨綠樂助

實地現直橋

各大銀行代收善

獾11院的镶恩及其夫人,这震著高市民及電單車,利慎各位熱心著尼常饮遘e

『時華行,無接

今晚無棣配合內將設有臨時電話四十具

慈善遊河六時開始

花車巡遊港九各區

分行代收藏

· 各大银行著馬費單至今開畫開發出,在下列

李雲目

要靠乐節目,與市民一秒的歌,由民赛大生銀行總行及各分行 行:香

品位瑞行真巨,

之花生岛帝,KAL

独在曲員競演方面,賀 別在著先南地巡幾,呼墓時間:香糰革由下午 主菜 市民海拼。為了一四時半開始:路由 婁棒來電說「歡樂今客一畫公仔拿 一等。故是,吴善長仁甗問業,分一樂開並會多甜梅長。巡

街五號E》

·海外信托银行各家行中国行·香港君联

永業銀行總行及各分行八蒩行:香;輔

中四五

五八七五五

身,全部病床三千五百一十六張,小部份受

東華三院服務槪况 耐克本影之野攒服務,包括三間書院、一湖療

攻容慎:六十名

THRI

美斯托兒所

張明添中學

·地址九雅南昌街三百.

陳兆民中學

伍若瑜夫人紀念中事

·地址·新界葵涌大白田街

TECH JERK. 地址新界葵涌葵倫斯-至8雙

愛民托兒所

地址榮興華邨安與接天合

地址:羹民邨保安四五至四三四

東華三院不牟利托兒所

. 地址;岛后大往東東縣大厦二樓A座

收怒訊:一百二十六名

服務:收症室及激蟆事均爲廿四小時服裝ad像陳兆民中學上黑)

外其餘均全部免費。 收費,除自週房年日房租二十元及三元兩樣·黃瓜领中高

門診:分中幣及西等,全部免費。

地址:香港荷里活道19號

本院青年中心旨在為導青年用她表,並希

望透過各項業組織的活動,促進青少年龍、智、

地址: 九龍离打老道

教育......小子

E

本院辦璡之七間小學,於一九七一年實施騰,作者,每年會費五元,未來發股計劃包括有啖血

病床一千五百四十二張。

費津貼。 游敎育,除魔收學費及陰聲外,學生可申請書部 兒童中心及典華兒童中心

灣仔青年中心

·服務:急救部爲计四小時服務。 品收費:除四百一十五張收劑病床毎日租金五

李西碼記念小學

地址:軒尼詩海東華大庹十一樓

其餘均全部免費 元、十元二十元、三十元及四十元等五種外,

市話:五七四一六四]

九推青年中心

門:分中醫及西·全部免費。

香港第二小學

台東婆東流:

地址:何文田術環道十一號

·老人風務

病床:三百][般

LE KYKUJIT

李師素小雪:

·服務·收症室爲北四小時服務。 收費 除通游每日開箱分五元、十元及]]

免費料,不收

姚遠之紀念小學 地址:旺角黑布降

大口理療養醫院

關啟明小庫

·俗谦疫病人及模#病人提供底套服務

高可紀念小

PA-DIKOBIJI:

托兒服務

: 服務、篇既復病人,爱性及肺科病人提供家

理本 亮擴務服 病電地?

除味,務·床話址

家阳

兇所。不

未現

執着理,因展學生家庭經濟情况,分予全冤1 本家整理之六間中學,參服敦育司屬免費 擔仔托兒所

黃笏南中

KATHL

托谷

地牝 軒尼詩道菜雍大厦三楼

收容顧:一百名

·石籬托兒所

地址:石麻新郎鉻十工座地下

托的决

·豜鑴服務

·汪源老人宿帝

建築工程已在積糯進行中。

宗旨,收量分闯四百元--黄雅! 費服務,又弟砍府冠紅蘭公地質畫有举和維

妝答:一百三十九名 二百元及自由選購棺不等,看著家角並可申請免

· 本院 彍服務以「定會低,服務至上

舘竞 千筋

安及的 光的

地址:香沸出院 電話:五四四三0六大

鑽石山殯儀舘

地址:沈程痛崗村道一八一號

#=]KOTJOBIKOTIR

牧部地, 收運地,

老興:

陳華

五趾本

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