1972-01-22 — Page 15

育教僑華頁三第張四第日七初月二十年辛歷夏 WAH KIU YAT PO

堅道藥來院

1972英文中學會考試題預習專欄

地理科

(十二)

CEOGRAPHY (2

ANSWERS TO PREVIOUS WEEK!S MULTIPLE. CHOICE EXERCISE.

4) (5)

2) (5)

1) Rubber is an Indusonal crop for

export Southeast ASIA

(1) Give The clinate, soul and eri

.nomic candled newsur

its Cultivation

Locate by means of a SKEL NAIL an important rubber produk i tiện). reg100 and print on at the thre port handling the export of the acunodity

(111) Describe how the crop is colle and prepared for experti (iv) State bmerly: the proclem

world rubber trade.

ins.

Rubber producing plants are found a tropical on elatums wareas of the world.

lium growth and yis la, temper atures: wath, menminder proximately 20°C are required s The mean makizun sholij het to ceed approxim1-lyrics, high ar temperatures unless et ompanied by.nrghi hunty, Cana pla, crning out WIN resultent cessation of latex from furn optimum、yield, snuot r

should exceed 10 inches End, ter evenly distributed A Long Bry period inhibit growth, and excess sively wet seasons, interfere w harvesting of the trop.

Deep alluvial soil is bull able for growing rubber birt good drminage is sdsq Lutely necessary, as rubber, wild not tolerate wet condition/

An adequate supply of late our is essential for the daily collecting of latex and its pre paration, The setting up of large plantations from what hị we derive more than 95% ol The world's natural rubber Sunfly requires grest capital invest rent, a high level of c ngana so; tron skill, and an: advanteg level of technology

MALAYA:: RUBBER AREA

RUBBER SINGAPORE

(111) Rubber latex is obtained by

tapping: Narrow snts are cut in the bark of the tree... early in the morning and all- uma ni um cups are placed below the incisions Latex: keeps. con flowing out from the trees for about half an hour before the cute become scaled up by nature: The contents of The cups are collected later in: the day by native workers and

路和暲飛又旣係逄風越鬼此

乎天識會車車馳嶺馬車 迪其老發呷第扒電穿反溪 尼- 後爺騶醋九頭走山斗奇

不朽作

郓日橋.

emptied into ranks in.the plane tation: factory Formic acid 11s added to make the latex

coagulate Water is excludea

by compression, and sheets of rubber are formed by rolling and drying or emɔking. The sheets are then packed into

bales and transported by lor ry to the port where it a pumped: end. piped on bon rd..

ship and exported to other!

cpuntmen

(av) 95% of the world's supply of

natural rubber comes from planti atrons in South-east Asia,

Me Laysia and Inc onesia are opey more important producers, fol- jowed by Cambodia, South Viet- nam The land, Ceylon and Indis

:On the other hand U.S.A. is ther

biggest consumer and Importer Japan Great Britain and West. Ce ruany are the other important, Importers The world rubger market is subject to periodic fluctatmund: As the demand 19: nsing and the production is proceeding st.an.even more rapid rate, there is always the, danger. of overproduction: Furthermore' natural rubber has to face compo etilion from synthetic rubber the production of which has no recent decades. over-takes that:

of nature rubbery It remains to be seen whether natural rum) ber can overcome the problem by re-planting the old trees. with high-ynelding species sa that the cost of production can be reduced.

IT)(i) State the geographical cond

itions needed for the grow ing of rice.

Aris,

(ii) Name a country which importsj

a lot ofnce

dii) Examine the world trade

"the commoda ty

Geographical Conditions:-

Relief: Rice is best to be grown on low and flat lands such as river deltas. Allu- vial plains, so that the paddy fields:can be flooded easily Hall slopes can be used If they are carefully terraced before parrow'st ru etches of level land are obtained ALVARE

Climate;.

Labou

able:

It needs a hig summer temperature; with an average of 250c throughout the growing period. An annual. amount of at least 40 inches 18 needed." so that. the paddy can.j

be flooded during the the early period of growth,

Face necusa perme- y e layer beneath so that water may not drainz away 80 ceadily.

11) Malaysia.

Much le bour 18 ne- eded, eg to transplant the seedlings from the nursery bed to the flo-

oded fields and, to reap the.crop. This method

of cultivation restricte whe use of machinery completely.

The world trade of this commodity is almost confined to South-East Asia which prod- uces more than 80% of the wor Vid's ride. Some of the produc- ers like India, Pakistan, Ben- gala Desh, China, Japan, and⠀⠀⠀⠀ recently South、Viet-nam have: to import rice from other prod ucers because of their enorm- ous home consumption.. Thailand, Burma, Cambodia and recently with the introduction of "Mir Macle racer, the Phillippines. are important exporters in the past two years, rice from the North American Count mee (USA, and Mexico)elsd enter the 30st-East Asian Market.

統縂 頡盛華

晚今

場夜午

不兒奇大 宜童片胆:

FOR

22.JAN1972

CITY HALL

六期星日二廿月一年二七九一曆公平一十八阕理中

紆译腾驚哦三方面之搽 Q尅之研討會- 部門人民。第三部份

二千九百名。: 幼推銷學生共客十三處,並給予在烧致師以 在六年九月三十日止之幼稚園,使獲攝完善家

"一鹤管理

對生存琏境應有之戲說,,仍未有一間正式政府 「林,以明瞭被人林之使此項及初致育獲得 第十三萬二千九百各 丸裡外活動之游正式一兒童取自毎年甚多,也 第八百四十一個人 在格內及校外,來自各 他們就讀。由於抵中一七一年秋季,學校日爾, (1)設管理者 女酒的人効同發,數十萬,但在一九 ,被然武至現時常止|真中小學融育 可見其药股情形来

血球,並檢討得失。「小然育。家長們對兒鄰大百七十二間, 在校時所受之正規劃的,不再於中一九年秋哦,幼稚萊握一 各级伙育階段中,其受在三年之一九 幼族陂育本恐凯顿,。

CHO CHEET

究有心得知各潑

商界当的萊關係之政府,近年區議都得發,助拾博那些系人继理的 行家,及與工一般之教育——幼稚教育|可裝一直都在支持及協、

∵惜以爱的協

小

幼稚園教育

類信「在代工商管理人 I研究之宝

年來發展速

材之祖雄」,研討會分

三部分:第一及第二部

十三萬二千九百名 去年九月共有學生

中文中學會考試題預習專欄 化學科(十二)

復習性解答

甲部(共50%)

工填-

題(40%)(每答案登台)

(一)(1)氫氧化钠(註:MacB

(二) (2)氯(3)氫氧化鈉、(4)藏

-2N2OH

sacar]

1972

(# 2 Na C] + 216,0 →→→> (2NaOH + Hit) + Cl_f

(二) (5)潮解(6)碗酸钠

(註:2NaOH + CO. → Na_CA+HD

(四)(?)酸式碳酸鈉(8)(碳酸内(7)焓用鹼

• Baking Soda (10)] Bay

|(2) (11) (x+5) (12) * #t

(5.) (13) $$ PJ Ber (4)(14) **

分子式

A 二氧化锰(5) Mob

顏色

B. 高锰酸钾(17) KMnly (18) 紫紅

重铬酸钾(19) ACD (H) 橙红色 铅丹 (x) Pb2O4 (2) 1+2)

()白色

三氯酸钾

「現代工商管理人材之訓練」, 下月六日開始舉行- 十餘學生團體參加 主薏爲

「鐵架 使禟發站服導組 其中包括中文大學南、

力,以助!梁克服工商研究所商系

「日,三日,十九日及

宏正 大之案與進步 許對實際於下月六 之掊對,而台安 團雙,在十多個以上,「阿區喪。一 「以空,但造愛人材,已獨溉公加之基生,校之工商管理學會及有 之工商管理學生研討會, 工商管理無生得有更蘭,為其接院,磅闻言快 書院工商管理理糸糸會「術所之無業管理人材台院,佛教書院 首殿為米得一針,以使將來之一時,

人吧管理人材,次日述三方面之怒討研究,將會院,設這書院

商院院醫院院

全

港工商管理學生研討會

聯合書院工商系系會舉辦

∵(八)有一種或黄色的物質,見光即变紫色

完是5溴化龜

闳海鹽的檸名,因為今有:S配镁. (+)纯蓝酸是下氧化氮的水溶液!

Zap (* (0%), 工問答題(20%,每题5分)

(1)答:鑑別二氧化锰、氧化铜&硬的方法 用試管分列將比三種粉末威好,然後 滴入濃鹽酸则威有二氧化锰一路有 黃綠色氣體產生,用濕潤的藍色試紙度 近該氣體則藍色石蕊就纸先变红再被 漂白(其反藤式如

MnO2 + 4 HEJ → MnCl + 2420 +ch 威有氧化铜的一瓶则產生黄色的氯化铜 氯化铜蕉易潮解吸收水份面成藍綠色

Cuck + 2H2O-Cuth 24,0 威碳粉的一试管舆盐酸与作用

(2)答:氯較溴為活潑,澳鼓碘為活潑

-2K Br + CB > > Kcl for

注順水苑迪化鉾中剛石市買城

含屬氧化物名稱

蜡色反應,顏色

溴被置换面析出

A

钙盐

器

30、蘋果綠色

(31)漂白棉布及麻布 (>2) / **..

醫藥方面用作(33)殺菌劑(BH製造哥强 孟(CHCL三氯甲烷)麻醉劑

D. 工業方面用以製造奶素白粉的四氯化碳

或披靠劑等

kamal Ar (36) A Fau

(38) 24 Br2; (39)

(十二)碘酒的化學名稱叫做(碘酊

(Tincture of Iodine)

工選擇題(10%)

(一)液體的非金屬元素為B.送

(二)二氧化鉛為氧化劑。

(三)以索爾末法警碳酸钠的方法又名

A合成法或稿酸酸合成法或氨酸活 (CAGU 不溶於水,

(三)芒碍的化學名稱是:E.碳酸鈉

(六)碘能略溶於5.水

(七)能浸蝕玻璃上物質為P起氨酸

爲敢作敢 事快人快

土地

⁑懲 剷除

影電的性炸爆滿-

郤一是這

主領

李金

演蘅麗麗漢

契黑

ZK Z + BG

(3)答:氯化钠、溴化钠及碘化钠的最簡單 將豬肉酸 银溶液分别注入国 有上述三種物質的試管中

1+NaN

再滴入氨水則白色的氯化银溶解。

(b)溴化鈉生成溴化银的淡黄色,沈殿

Na Br + AgNO →→ Ag Br | + Na Nog

再商人氨水则溴化银微溶於水中 ()碘化钢生成碘化智深黄色决定 Na I + Ag NO →→→ Ag I↓ + Na ND3 再滴入氨水則碘化银不溶解。

(答:因氯溶於水,然後能改出生的

氧,將色素氧化成為無色,故乾燥的氯無 漂白作用。其反应式如後

Horo

·HCl + HG10 (次氯酸) HCl + co3f

老即行分解版寂的黄绿色消尖

SHC10

美亞觀國黃倫 荷太永 宮麗洲塘華金敦活李平華都樂

鶖場五𪖈滿早𪖈

七○○方東的期初國民

韓系李苗 甦璐影天越生福

第百空

·歲前

奇難絕 片逢後

哥嶽

鴨路

庭

點地期映童注

後而

嘉李

THE CHAMPION OF CHAMPIONS

SHAW SE SCOPE

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