1990-12-15 — Page 28

十月二十(〇九九一)年九十七國民華中

(20b)+4(4a+256) {46#4) = 0

育教 日九廿月十年午庚隆更

郭日僑華

4a-4ab4256 × 0,... (2)

(1) (2)

3a+12ab

Economic & Public Affair (11)

Contents

Effects of Inflation

3a(1+46) = @

1991 中學會考預習專欄

or b.

Whet a

Beani

When t

Kwok

MILL & DALE PRESS.

C. Banking System

Contents

Meanings.

(Ars.)

The Three Tier Baking. System

Licensed banks governed under

Banking Ordinance*

5. Suppase

the

ecuation

the

hyperbola is.

{x+2y}(x-2y)=R

(by+8) in (1)

6qy96y-64+25k = {}

á tangent to the hyperoola

(-9614-4(64)(-64+25k) 0.

The required equation is"

(Aris)

-different

The gradient of tangent to xy=1

六期星日五十月二十{〇九九一)年九十七國民軍中( 28 )

Meanings.

Inflation is harmful to the salaried people and those with fixed income. The reason Ties in the fact that their incomes remain more or less the same, but they have to pay more for their livelihood. It also imposes 111 affects on exports. If the local costs ncrease, the competitiveness of Hong Kong goods in overseas markets. will reduce accordingly...

However, inflation of a stable and mild degree may stimulate the economy,

Licensed Deposit-Jaking Companies (LOTCs) for time deposits. of HK$5000cd or more. Registered Deposit-Taking Companies (RBTCs) for time deposits of more than HK$70.000| with a maturity of more than 3 months.

* Only licensed banks can accept demand and savings deposits and time deposits.

which have a maturity of less than 3 months.

D. Inflation and Deflation

Inflation in Hong Kong.

Contents

In accordance with the Hong Kong price index, the rate of increase was very low during the 60s, being less than 4 per cent per annum on the average. However, the situation charged greatly in the 70s, the rate of price increase for inflation rate) attained two digits in 1973 - 1974. Though the situation became improved during the following years, inflation regained its momentum -during the end of the last decade and the start of this decade, and the rate of price increase

again attained two digits.

Contents-

Definition

Meanings

Inflation is a sustained increase in the general price level. Deflation is a sustained decrease in the general price level Inflation results in a decrease in the durchasing power of money. Berlation has she opposite effect.

Types of inflation:

(a) In creeping on mile inflation, the general price levél rises slowly.

(b) In walking or galloping inflation, the general price level increases at

faster rate.

(c) Hyper-inflation occurs when a very high increase in the general price level

destroys coffidence: rh money,

Causes.of. Inflation

Cost-push cast.

supply.

price t

Demand-pall demand t

3.Imported

prj.ce

:inflar

flation

Annual Percentage Change of Cunsumer Price in Hong Kong1982

81

1982.70

3.2%

1971.

1372

1973.

1974

1975

1976

3.7

1977

5.4.

197B

5.9-

1979

1162.

190

15.9

1981

17.4

1982

10.5

1983

9.9.

-1984

8.1

1985

31

1986

Equation of tangent:

x*t2y-26 = 0

When x = 0, 7

(y-intercept)

When y = 0, x = 2t (x-intercept).

Area of triangle = 1(7)(20)

鳩當苑仁奔出庭: 十餘年後始平。 帝三期,光禍轉發。 生百八十餘職。

259. units (Aps.)

(周五七)朝鮮選竮據韓灺 闊,然詠羅伐,後政薪躍,轉併 升辑。成帝鴻嘉三年(前一八年 )蔺包屬王族,據韓地建 解百濟。遼成三國分賺半鴻的局

(F)兩漢即突奴之關係:1 武帝法朝鮮,日本對中國的交通 *由此時間發軔。東漢時,通使 南來中國期翼者,有三十餘臨。 泰明其一。光銀建起中元元年。

越的平定:漢初, 武王;呂后專政 南越政策,後傳仪 ,贈宮帝即位,元 一二,漢熘碼機

。翌年,漢討抵南: 將海、蒼渚,證林(十七)阅读野外交通的發展;

帝味,越女主淇、 準審交趾,立網柱 鬭南椒馬燈拜擒

閩越觀林洋間中 帝文無踊鏓閩越王 海王搖為 主. 三年(前一三八) 東配。東關向陳廷: 國內排,被激有理

閩越王野發兵擊南 注污、郭弟餘搏。

前一一一年,喺善 痍、磚觀類聖將軍 ,截其於江准】 TEN... 兩機之制附;西南

□戰國末年,楚 ,建立潮憾。澳式

同陲合司馬相如因,

內附。後西西庫: 漢逐中山館營西岸、

年,張漸從大廈 國的交通,恩匈奴 ̇ 小再發求身韋以

鎓館自身驊運來.

3於录,澳廷酒史, 传遼灠,但探知

保,漢出兵討關越

,乃舉兵度,護

但為我都感,越二 ,这理德州城。徵

鄭與觧朝的關係: CH-ON) › W.

癮哦

二年(前三七)

蔥。直带起湖元年,

宇光武帝鶘以」委奴國王打印 晚。安帝永初元年(一〇七年) *类國王帥升叉癯使中國貢獻。

阿塞關地既廣*對外交通運 高發展起來。茲將其海陸交通情 「兒廕述如下:

(DCA)创方险路交通:武帝

安廳(今印度地方)。至於康居 ,大月氏國則在今俄院中亞輕 亞始,安息則在波斯北路安訊 北之黎府亦名大業,即指當日之 羅馬。武帝時,交易提饿軒餐眼 人,可知霜罵人进時已至中斷。

東漢班超既定西域,欲道大 斑。和帝水-

九妹(九七年)邊 甘英西行,輕安灣至膝文,衊安 想入所阻,臨西海不潔而還。條 文在今阿拉伯半島,西海則綠地 李海農際。由此可知東漢時,中 國交通已擴展至地中海東;而中 國之絲爾兼兩亦巴間接輸入歐洲

,為體規人所欲

東漢初年,大棄拓咈於西亞 凍飲酒中國,爲安親人所癮而不 果。至頓帝時,安科已無大泰所 硗匋帝娅遍九年(一六六)天

·襄王安款(MARCUS A... A. ANTONINUS)逖遇 便從海撊蘤國吃

三(B)海上交通:在軍方,

在南方,『邁曲理念』所靠 之黃克爾(限回兩三百餘日海卷

,為俗與陳際相龥)默帝時语 & 來與猷。王莽時,曾製圖支國航 生啤中,黃或國在今印度東海岸 ',近代中國交通舉者演星考进 其開建恣聯CKANCHIP URA)。由此可知西漢時海上 交通已雞刚度。

東漢指帝時,大家王安敦道 快遞中國即從海罐,由今建議 期日兩個外而來德洛陽。從此以 侯,從至三國,大樂商人時來交 註。澜膩,亦時往來 了 豬(今斯里樂卡)附近。甘落。 交批遂成爲東西洋交通關組,傅 方海人常照其地,海道互衛縮之 製!

(C)影响方面;兩淇海陸 交通影响所及,促道了中外文化 的來亂、中國之法器,網就、體 五解馋伸入朝鮮、日本。採購能 攜物品焗專座大。安息谢鴨入 大事,四緘「坎兒井」的性拆技 衛,亦傷自中斷。

西域蕷欄偵臣往來不悅。將 曾華,背牌、胡麻、胡椒、胡瓜 三、胡排、實石、城鄉等物輸入小 崗。此外,跟狀之樂如補飲、 胡飾,印堂,波,希臘的美術 風格ś世稱「南華鯔旅邦」(G YNDRACOUPTA) UN 關,亦辦轉傳入適。其中 尤以嵬運的傳入之佛歌,對中濇 宗教,以日如南话

(15)

1991 中學會考預習專機

明道出版社

MILL & DALE PRESS.

Chemistry

2HC1

Oxidising

ly used are

KMAO,

Pb0, (the three requires hosting).

7. The preparation of chlorides

Chlorida's Hethod

.Method Z

Moito!

Method

LAM

Metai

oxfoes/ hydroxides/ carbonates dil HCV

Chemical properties of dry HC1 jas

(both Fac

Ct. Jorne

Dry HC1 gas is covalent and not vary reactive.tia

& Fact!

an

bu forms white dense fumes with amnomia gas."consist of solid anion va chi

5.2 t gives a white preci

silver::chToniden

Itate:gr.

tag: into

HC1(g) + AgNO3(aq) --AgC [+

(aq)

acidified silver da sotution.

5.3 Métals above hydrogen in the

Activity Semes, when heated in HC

gas, can, displace hydrogen ças

it/

- No 2HG1 2N3C1 +

Fe + 2HCY'

(H.B. If the metal has more than one axidation state. the chloride with the metal being in its lowest oxidation state is obtained.

Chemical properties of agimous 1101 solution

6.1 The solution of HCI gas is prepared by dissolving the gas from the generator directly in water. An

inverted funnel ts used in order ito.

prevent the sucking back because

HCT-1 very soluble in water:

The rim of

turns just.

below the voter surface.

wstor.

6.2 Dilute hydrochloric acid is

acid, having hall, the typical general properties of an acid,

6.3 Concentrated hydrochloric acid is acidic but also readily oxidized to chlorine by a strong oxidizing

agent.

The chlorides of the underlined metals are very deliquescent and Thus, readily hydrolysed by water.

of arrangements special apparatus have to be made preparing: these chlorides. anhydrous pure form, e.g. Fetly.

Heat

· Soda rime

the

線

ffor removing excess, CF and "preventing moistura in ́air) “from entering: Info "the recelyor tack crystals.

weld react with

(b) Solids X, Y and

halides..

TEST

Pass ch for line s Inte aqueous isolution of YO

Els Add acidified silver

nitrate solution to equecusY.

Add-cont. 50 10

valla 2.

IV. Add cond..

sotid X.

to

sodium

OBSERVATION

The solutian tubes

brown

A yellow precipitäte is obtained..

Histy, White tunes iro İsoon.“

Reddfäh-brown vapour

1. Write anionic equation of the

reaction in Test !.

M. Would the precipitate obtained in Testlyheable to dissolven excess aqueous ammoniazi

reddish-brown observed in IV. Write an equation of the reaction.

iii. Name the

Question 6.3

In the experiment below the gas formed by the action of concentrated sodium chloride ∙Crystal

assed over an iron wire

.un

solid was obtained and kess git D was collected, which an explosive mixture with

{b}

(aq) +201*(ac)

f. The precipitate is silver chloride,

It is insoluble de aqueous ammonia. Solution.

iii. It is bromine vapour.

H2SOg MaBr 折$O+HBR

(OR 3H,50 +30

The chloride ion (C).

Sodium chloride

crystals

Solution to Qualiz

(a) X is chlorine gas.

Y is iron(II) chloride.

:(a) Identify and Rame use 'ances * (B} 2KMnQ,+16H¢1 →2KC1+ZMaC12+5¢12

B and D respectiv

vapour

(b) Give an

Lequati

f

What is the anion contained in 2?

Question 6.2

In the experiment below the gas X; formed by the action of concentrated hydrochloric acid on potassium permanganate crystals, was passed over sone from filings at red-hot. After a while, a black solid Y was collected at the place as shown.

PUBLIC

Racalvar (for collecting.

subtimatet

Question and

(a) The..

below give, some information about four elements in Group 7 of the Periodic Table.

·El onion

chamber polet (Ca

Fluorine

-220

Baling (paint (*C).

-188.

+101

-5A5

-7.3

113

183

electronic

todine

Referring

to their

configurations, explain why they

fall within the same family,

"Weter

Hest Soda 11ma

(a) Identify and name the substances X

and-Y.

of

the

(b) Write: 打起 equations

formation of X and Y. respectively. (c) State the purposes of passing X successively through (1) water and. (11): concentrated sulphuric. acid.

(d) What is sodal fme):

State TWO functions of the sodalime in the above experiment.

N. they all. consist of ciatomic, (el Would there be any reaction if the.

molecules. Braw the electronic. structure of such a molecule, using the' cutermost shell only.

ii. The melting points and boiling points of the elements. increase down the group.

Explain the trend

briefly.

‘ironIn the above. experiment is

substituted, in turn, by

1. copper. powder,

i. carbon powder'?

If there is a reaction, write an equation of the reaction. If were

is'No reaction. state so.

2Fe+3012

formation

(c)

(c) write an equation of the reaction

between A and w

(d) Why was soir mollected at the place as shown, but NOT oear or on the hot in

Tel. How you word too much of vas

A:也測號np活配波dacted: after. passing. or theiron vire? (TouTiathere be any gas collected in.

the test-tube if the iron wire in the above experiment is replace. int. turn, by

i. zinc powder, 11. copper coif?

If there is a reaction, give an equation of the reaction. If there is NO reaction, explain briefly.

Solution to Q.6.1

[ Their atoms have the same number of

electrons in the outermost shell. ii. The electronic structure

halogen malecile is:

ii. The molecular size increases cown the group, thus creasing the Intermolecular forces. Since the strongly

are

attracted together down the group, so, there is an increase in the m.p.'s and b.p.'s down the group.

iv. Iodine is the least reactive,

美、加

懺邂惟(樂)孿

...

TA. TEX

Water is to dissolve the hydrogen chloride gas.

11. Conc. H2SO, is to dry the chlorine

yas

(d) Sodalire is a mixture of solid sodium hydroxide and calcium oxide. it is used to react with the excess Cig gas.and.to prevent the moisture' in air from entering into the apparatus...

Yes; Cu+Cla

1. NO reaction.

Solution to 0.6.3

(a) A is hydrogen chloride. otui chToridev 15. hydrogen gas.

{b} NaCl +H_504 - NaHSON+HC1 (c) 2C) +Fe = FeCl2+H2

(d) It is because. iron(11) chloride sublimes readily when heated, soy it is collected on the cooler part af the comoustian tube.

(e) This can be achieved by controlling the rate of adding conc. H250, to the NaCl crystals, thus producing gas A at a reasonable slow rata.

A to give

1. Yes: zinc reacts with gas A.

hydrogen gas too.

11. No; because copper, being lower in the position than hydrogen · it Activity Series, cannot displace

hydrogen from hydrogen chloride.

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