1971-02-11 — Page 15

#12 FEJ

報日橋茶

CITY HALL

四期星日一十月二年一七九一座公年十六國民華中

育教僑華頁三第張四第日六十月正年亥辛屬夏 WAH KIU YAT PO

育教僑華

1971 英文中學會考試題預習專欄

新光出版社主編 SUNLIGHT

PRESS

化學科

(十六)

ISTRY

LESSON SIXTEEN

ANSWERS TO EXERCISE 14)

DAKVERZNE. 炮本月小三日下午八時

SCEN

R

EKUREK. (21676GETS RECHENNESU

【磁路,整流橋 美夜发,日前返港 --

BEKERE

(EG)EKRE VALLHÄNDEZEKHED

ZFCREE-U KRY

H

*月廿一日旅行大山.H佔四- 校友。

RESREFERELUK I

十三日聯歡

VENEKEM - KAR SE ME IKE

KEKRIZ-BERT

GLAKLER ZIERTENGAH

.定期遊大嶼山:為在校同壁參加,屆時

PE/EN/CE/253)

出品題材新穎獨特

帶一聯,三大平紳士李鸿被剪可致詞,使 露出上午正出下午就時下止;湖於前日上

DF EAT 1708 1+K?ECEK IS FKKNE

ECEKINKE

首

(ES)AXXARISCHDETE

**)-BGM (3

請窣 剪綵 郭樵亮

保

署理教育司何雅明:

(ES) CERESKEDEZREKHEZERKONTENDE

惟不能預料該會考慮之結果

免費小學教育建議 財委會短期內考慮

☆ 富國歌节感院時事 員會,昨就日本直愛佔費國「舊

*PENYETERISEX INERMS ] • ·

發表釣魚台事件聲明

羅師學院時事委員會

「中國人團結起來,粉碎日本親我領土的野心!

BERECHTSELWEE

·敦何雅明昨日在立法會上筈储设盈詢問時,作

ECKER AKER

TERK

「杂下會明; HOTELEK 我問,對日本猷流过婆犯我國領土的無理行動,白不能坐鎮,故此我們特 据外意研述,日本國際計劃在釣魚台興建一流台」,中國人的,

COGIN RIBOFARAN

****=24-28(R

金文泰中學明起

【侠的行时,维然中國人的尊嚴,保毎一十的南北。 EURER WEES TESLKEDKI Y÷SCERLE DS

<- EUR-BEKEND

[F< • ££*£ • KEQ-DH BRIKKER."

KE was for HRNA-RASTR

釣魚台的正常作業冫一遊來作露,所以日本玫應食貼心中國漁民 当一个日本焘照下的鄧螅努鏋,無录狙拱中國漁民於自己姆家領土

以,不但日本佔釣魚合篇非法,西對艙,日本亦不能提出领土 的決炁,琉球的地位在PS 浙八的意見原則下,再有關國家協定。所

CHELSIS)

HKUKER PLAN(E)KO

(EKOTKO).

事

(141). D.

(145)

(149)

(142)

(146)

(150)

EXERCISE 15.

(151) Properties of rhombic sulphur

(a) Stable above 96°C. (b) Bright yellow in colour

Which of the above are correct (A) (a), (b) and (c) only (C) (a), (b) and (d) only (E) All of them.

(152) Properties of monoclinic Sulphur

(a) Stable below 96°C

(c) mp 119°C

Which of the above are correct"

(A) (a) and (b) only

(C). (c) and (d) only

(E) (b), (c) and (d) only.

(153) Properties of sulphur

(a) A yellow solid

(143)

(144) (148)

m.p. 115°C

(d) Specific gravity

2.06

(B) (a) (c) and (d) only (D). (b), (c) and (d) Only

(B) Pale yellow in colour (d) Specific gravity

15

(B), (b) and (c) only

(D) (2), (b) and (c) only

(D).. Soluble in water

(c) Soluble in carbon disulphide (d) a poor conductor of

Which of the above are correct"

(A) (a), (b) and (c) only (C) (a), (b) and (d) only (E) All of them

-heat and electricity

(B) (a) (c) and (d) only (D) (a), (c) and (d) only:

(154) Hydrogen sulphide is a-basic acid So, it forms two salts, ie,

sulphides and hydrogen sulpliides (or bisulphides). Sulphides are usually prepared by three methods, Which of the following are correct?

(a)

Neutralization.

(c) Direct combination

(b) Combustion

(d) Pespiration

(e) Precipitation (Double decomposition)

(A) (a), (b) and (c) only

(C) (c) (d) and (e) only

(EY (a) (b) (c) and (d) only

+1.55 The properties of sulphur dioxide:

(a) It is a colourless gas: (c). Its V D • 162 9

(B) (b), (c) and (d) only

(D) (a), (©) and (d) only

(b). It is poisonous

(d) It is insoluble in water:

(e) reacts with alkalis to form salts

(A) (a) (b), (c) and (d) only (C) (a), (c), (d) and (e) only (E)All of them

(B) (a), (b), (d) and (e) only

(D) (b), (c), (d) and (e) only

(156) To test for sulphide dioxide, we notice that the gas has a

characteristic smell It will decolorize (X) acidified potassium permanganate solution and (Y) acidified potassium dichromate

(Z) Where

⇒ purple. (Y) = yellow and (Z) -green (Q) (X) * purple, (Y) green and (Z)=yellow

(R) (X) red.

(S) (X) = red.

(Y) = green and (2) brown.. (Y) = orang : and (Z) yellow

(T) (X) = "red"

(Y) = orange and (Z) green

[157] The coloured solutions of three (X) are reduced to colourless

solutions of their hydrogen compounds. Where (X) are

(P) Chlorine, bromine and todine (Q) Chlorine, bromine and ferric salts (R) ferric salts, bromine and jodine (S) ferric salts. chlorine and iodine (T) Chlorine bromine and copper

1981 Properties of sulphurous acid-

(3) It is colourless

(b) It is very unstable H2SO,

(c) turns litmus red.

H

(d) It forms a yellowish precipitate with barium nitrate (e) It is a dibasic acid. forming acid salts and normal salts.

(P) (a), (b); (c) and (d) only (Q) (a). (b), (c) and (e) only (R)(a). (c), (d) and (e) only

(S) (b), (c), (d) and (e) only (T). All of them.

(159) Tests for sulphites The following methods can be used.

(a) Warm with dilute acid and sulphur dioxide is evolved

by identifying is smell

(h) Use barium nitrate solution and barium sulphite is

precipitated. Further, by adding dilute nitric acid, the precipitate decomposes and sulphur dioxide is evolved. (c) Use rodine test

(d) Use bromine test (e) Use magnesium test.

(P) (a). (b) (c) and (d) only (R) (a), (b), (d) and (e): only (T) All of them.

(160) Properties of sulphur trioxide, (a) it is a white solid

.(Q) (a), (b), (c) and (e) only

(S), (b), (c), (d) and (e) only

(b). It combines with water readily

sulphuric anhydride"

(e)

(d) It dissolves in coni sulphuric ació

(P) (a), (b) and (c) onl

(Q) (a), (b) and (d) only (RI (b) (c) and (d) only

(S) (a), (c) and (d) only (T) All of them.

1971英文中學會考試題預習專欄

物理

EM SUNLIGHT PREŠS

PHYSICS

ESSON SIXTEEN.

(59) T (64) C

:(60)

(65) D

(62) (a) A;

REVISION TEST I

ANSWERS TO PREVIOUS EXERCISES;

·(57) Q

(58) S 162) (6) B; (63) E

(A) MULTIPLE CHOICE SECTION

The water equivalent of a copper calorimeter is the amount of water that has the same

A

mass of the calorimeter.

B. volume of the calorimeter.

C. thermal capacity of the calorimeter

D. specific heat of the calorimeter.

E. weight of the c calorimeter.

Which of the following methods will change the volume of an ideal gas four times smaller?

1. By doubling its pressure and reducing its

absolute temperature to one half..

2. By doubling its pressure and temperature

(absolute).

By reducing its pressure to one quarter. at constant temperature.

By increasing its pressure to 4 times as great at constant temperature..

By doubling its absolute temperature and -reducing its pressure to one half.

and only. and 5 only

and only

D, 1, 2 and 4 only

5. 3, and 5 only

Which of the following factors affect the

boiling point of a liquid?

1. the atmospheric pressure

2. the mass of the liquid":

3 the Latent heat of vaporisation

4. the vapour pressure of the liquid

5. the specific heat of the liquid. A all of them

D. 3 only

3. 1, 3 and 5 only E. 1 only e. 3, 4 and 5 only.

In a vacuum pump, the volume of the barrel being half as much as the receiver, let P

be the original pressure of air in the receiver. the pressure of air in the receiver after the +th stroke vill be

4. P

3. P(5)

in experiment to determine the coefficient of apparent expansion of a liquid, the following readings were obtained. ?..

The weight of the empty S.G. bottle = My The weight of S.G. bottle full of liquid

My at TC

The weight of bottle full of liquid

The coefficient of apparent expansion is

· M

M

A pendulum (as shown) is pulled aside by s horizontal force so that it is displaced 5 ft. horizontally. Which of the following.. are true? YY.

1. The resultant of T and

F is equal to mg. in: magnitude and direction,

138.

B

mg.

2 and 3 only

2 and 5 only

M 13

3, 4 and 5 only.

1, and 3 only

none of them

Referring

to

Question 6, if the bob is

released, the velocity of the bob when 10) returns to A is

√2 ft./sec.

2/6 ft./sec.

R.8 ft/sec.

S. 16

ft./sec. ft./sec.

A lb.wt. block is connected to a 3 lb.wt.' block by a string which passes over a smoot!, pulley (as shown). If the horizontal plane is having a coefficient of friction of 0.5, the acceleration of the system is P. 16/7 ft./sec:5

Q. 32/7 ft./sec.

1.96/7 ft./sec.s

S. 24 T: 8

rt./sec.s

ft./sec.

plane

4 lb

A machine, which is 60% efficient, uses 1200 ft-lb of energy in raising a mass of 180 lb. through a certain distance. The mass is then allowed to fall back to its original position. Its velocity at the end of the fall is

P. 8 ft./sec.

Q. 16/5/3 ft./sec.)

R. 50/3 ft./sec.

8; 16 ft./sec.

I. 32 ft./sec.

The diagram represents a maximum and minimum thermometer, with the scales omitted.:

of the following statements are true

The Iron index at A

gives the maximum

temperature.

The iron index at B gives the minimum temperature..

The preserit temperature Is found at P only. The temperature at .

is the same as B.

5. The temperature at r

is the same as Q....

1, 2, 4 and 5 only.

1/2 and 3 only

3 and 4 only

Which

mercury

2 and 5 only]:

Referring to the diagram which of the following statements, are correct?

1. The weight of the lump

in air is indicated by. the tension of the

strängt

The weight of the lump in liquid is equal ton the product of volume of the lump and the density of the liquid. 5.G. of the lump is a ratio of weight of the lump in air over the tension of the string. The tension of the..... string is equal to the produew of volume of displaced liquid and the density of liquid..

5.G. of the liquid is a ratio of tension of string over the upthrust.

All of them D, 2 and ↳ only 1, 2 and 3 only E: None of them 134 and 5 only.

simple pendulum is displaced from A to baru trien released. If the time taken for the pendulum to return to A is † sec. the period

A is sec.

b. 19 1 sec.

C. is la sec.

D. 19 2 sec,

E. cannot be calculated

since length of the

string is not zivent

In order to turn the head of a

is applied.

A. a couple

momentum

acceleration.

D pressure B power

ABCD is a parallelogram, AB, BC, AC, BD are forces, the directions of which are shown by their arrows, Which of the following is true?

A, AC is the resultant

of AB and BC

B BD is the resultant:

of AB and BC.

C. AC is the equilibrant

of AB and BCA B

AC 1s the vector difference of AB and. EC

E. BD is the equilibrant of AB and BC

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