1970-02-14 — Page 15

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(A) open-bas石 (B) places mining (C) slope mining (D) adit: nining

(E) shaft mining

701631970

CITY

育教僑華頁三第張四第日九初月正年戌庚意喜 MAH KIU YAT PO

報日僑華

六斯星日四十月二年〇七九一麿公年九十五國民華中

育教僑華

170英文中學會考試題預習專欄

英文書院主編

一鐵 中文中學會考試題預習專欄

地理科

化學科

(十五)

複習題十四:

林錫衡 M

複習項目 硫及其化合物(續)

一選擇題

(1)漂白草帽辦時最好是用

(9)

(b)亞硫酸

(C)漂白粉

(2)氧水

(3)都是一種

(a)金屬氧化物

(b) 氮化物

(C)硫化物

()非金屬氧化物

(3)製硫酸時須用催化劑的目的是要把

(2)硫變成二氧化硫 (b)二氧化碳變成三氧化碳 (C)三氧化硫變成硫酸 (d)三氧化變成焦硫酸

(4)用硫酸可以製別種酸的理由是因硫酸

(4)比重大

(b)酸性強

(C)最便宜

(d)沸菜高

(5)濃硫酸與銅片共發以製二氧化硫時濃硫

酸是用作

(9)氧化劑

(b)退原[

(C)催化劑

(一)脱水劑

二氧化硫溶於水時,一部分舆水作用生成

.性反應其類稱為___

(乙)鉛室法製硫酸用

為催化劑接触

法則用: 或

為催化劑......

(+3)鋅與稀硫酸作用產生

氣銅與濃機

反應後一作用屬於

反應。

(十五)

GEOGRAPHY (15)/

Outline and discus the factors which explain the absence of large water power plants in South-east Asia even though there are large potentials.

The potential of water power as a permanent, insehaustible resource appears to laymen to be extremely attractive, especially to countries whic are poorly endowed with mineral fuels such as oil and coal. However, given enough capital, the generation of hydroelectric-power requires a period of six to nine years. Moreover, sites for the generation of hydroelectricity are often very Temote from centres of consumption, so that energy. lcases through transmission are considerable.

DA DOUTO-da87 4818, there are favourable physical conditions for developing water power. Rivers flowing down the steep-sided young fold mountains are sufficiently powerful to turn the hydraulic turbine. Besides, the wet season throughout the year keep the rivers running all the year round, so that a plant can operate without! atopping. Unfortunately the development of moa countries is still on an agricultural basis, together with their low standard of living, industrialization is in an infant stage that there is little demand for water power except in some large cities, e.g, water power is used for tin- amelting industry in Kuala Lumpur. In the dens₫ equatorial or tropical monsoon forests, the swampy. lands, and the steep-sided river valleys, many areas are of difficult access and communication is extremely difficult or even impossible. Meanwhile the high temperature of the day coupled with the high humidity discourage human settlement particularly white man settlement, Lacking in technical knowledge, capital, the native themselves. :could hardly raise the amount of money to run

projects on their own. In fact all the water powe plants as present in_operation in South-east Asi日 are established with foreign technical: and

financial aide, (mainly from U.3.5.B.. UiSIA., and. West Germany)

POTENTIAL WATER PONER IN S.E.ASIA

酸共熱產生一 前一作用屬於

(4)濃硫酸能從有機化合物中,按照水的組成

比奪取氢氧二元素而析出碳的作用,稱為

POTENTIAL

WATER POWER. SITES:

作用

氯的漂白作用是

的漂白作用是 何者不能永久?答案:

作用而二氧化硫 作用,上述兩種效果

6)依照下列名詞各舉一

學名)

(Q)酸酐

(b)除水

(C)不溶於水之硫酸鹽

(七)含氧之還原劑

奥、濃硫酸起作用之金屬

7)舉出在實驗室中可以用硫酸配合其他物

質製取之氣体六種

下表

化學名稱

化學式

(三)完成並平衡下列方程式

(1)C + H2SO4 (3)

(2).H2S+ H2 S04

(3) Al2O3 + H2 S04

(4) H2S+ SO2→

`(S) KMnO4 + FeSort H2SO4

(6) 50s+ FeCl →→·

(7) Ag+ H2SOg(濃)

在下列各化學反應中,需出可见的现象,並附 方程式以解釋之:

白將-蘸有重鉻酸鉀溶液之紙暴露於二氧

化硫氣体中

(2)通二氧化硫於濃硝酸中

JULTIPLE CHOICE EXERCISE. IN ECONOMIC GEOGRAPHT

bauxite 18 the ora of ...............

(A) iron.

(B) copper

(C) aluminum

(D) tin

E) lead

) In smelting aluminium, a large amount of

is required.

(A) cheap electricity

(B) coal g

(C) natural gasi

D) coking coal

B) petroleum

Bauxite is usually mined by

(3)濃硫酸與蔗糖共同微熱

D:

4)黑色氧化銅與硫酸一同煮沸蒸乾之 (5)礇加瀬粉再加入過量硫代硫酸

可分別寫出蛋於下列四種方式製二氧化硫的

反應方程式

(1)化合(口)複分解(3)氧化

(4)還原

[注:此處的氧化還原係以就為準了

(六)繪圖說明如何在實驗室中製取=二氧化硫

寓出下列各反應之化學方程式

(1)二氧化硫通入高錳酸鉀溶液中

(一)二氧化硫通入溴水

(3)將炒熱之二氧化鉛放x=氧化碳中

()()d

複習題十三解答

(26 (3) d (4) C

(5) 6

(二) (3) (只有硫化鋅白色,其他皆黑色)

只有氣沒有同素異形体)

只有二氧化碳沒有臭味)

其他四種都是還原劑只有氫氧化铁

4) The largest producar of bauxite 18:

(A) Frange

(B) India:

(C) U.S.A.

(D) Jamaica

(B) Malayada

The advantages of underground mining include;-

(i) low.operation coat

(ii) deep ore bodies can be mined? (iii) takes up less surface area

(iv) unaffected by weather conditionw

(v) low grade ores can be mined

(B) 1, 113, v

(C) i 114 (D) iii, v

Shaft mining means the mining of minérala byz➡ (A) hand-panning of atream gravela for tin, Bola

diamond, and platinum.

removal of the over-burden using machinasiam construoting tunnels into the ore bodies and the minerals are transported up the tunnels conveyor belte

(D) constructing tunnels along aides of a river

valley.

(e) construating tunnela following. the dipping

angle of the ora body

When the ore is described as 0.7% metal content) it means after smelting, 1,000 tons of ore would yield. .... of pure metal.,

(A) 7 tons:

(3) 70 tons

(0) 0.7 tons

(D) 700 tons

(5) 7,000 tons

0

8) Factors which govern the commercial exploitation

of mineral ore are t

(i) the size of the ore body (ii) the cost of labour (iii)-the price of the metab

(iv) the weight of metal

(v) accessibility of the mine

(B) i, iii, iv

(D) is, id,

3) Low grade ores in an economically advanced]

country are mined because-

(A) the price of the metal is higher

(B) the labour cost is lower

capital are easily available `

the construction of tunnels, shafts 18 more

easy

(5) government encourages mining aotivities in form

of subuddy

10) The advantages of transporting oil by pipelines

(3) Low maintenanoe coat

(ii) initial capital investment is LOW

(iii) oil can be transported over a long distance

disregarding weather conditions

few labourers are employed

(v) constant supply oan be fasured,

(3)B1, 111, 11, 7

(C) ii, iii," "iv,

(D) i, 11, iv, v

(E) 1, 11, 111,

(ANSWERS TO THE ABOVE EXERCISE WILL APPEAR NEXT MGEK

QUESTIONS FOR NEXT WENGA F

A)-With actual examples, discuss power resources,

labour, transportation, and market as locationa) factors of modern industrial complex,

Write a concise geographical accoune on exon the followings-

(1) the division of industry into primary,

secondary, and teritary sector.

(II) major industrial regions of the world.

(其他種都是結晶水化物只有小蘇

* NaHCO K

或其他四種都含硫只有小蘇打不含 硫

() (1) Cu+ 2 H2SO4 = CuSO4 + 2 H2O + SO, T

ASOS NazSO4+ H2O + SO

2.HC! → FeCl2 + H2S1

(四)(1)硫化氢與二氧化碳的鑑別

a)分別通入硫酸化之高錳酸鉀溶液皆便 其由紫色度無色但前者所得溶液混濁, 後者所得溶液澄清。

(6)分別通入硝酸鉛溶液生黑色沉澱的是!

硫化氫不生沉澱的是二氧化硫.

(2)疏酸鈉亞硫酸鈉硫化鋅之鑑別

分别加入稀盤酸生臭蛋味氣体(硫化氫)] 的是硫化鋅

配或溶液後分別加入硝酸銀溶液生白色 ̇沉澱的是硫酸鈉或亞硫酸鈉,再加盐酸沉 澱溶法的原物為亞硫酸鈉若不落原物為

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