育教僑華 頁三第張五第
日四初月四年亥辛 WAH KIU YAT PO
報日僑單
僑榮
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
CHEMISTRY
ANSWERS TO EXERCISE 23.
(三十五)
【少的。
做,碳動府當局動,批人士愛國,同句 在各族群,
「雅開朗,即可施工,此借本命作作下一代,為業,
方而的知識,其不過贻力的, 加雅酒的括可見
| 除了一貫地整邙 忻防墬做的準椌外,對於其他一 本人間,青棒的行政特中 意,粉、維持全 椰纻號肫鬥今天的成就,亦已骨本人所營群。 變批幹产之
少至各漵院員,能暝心致志,無力合作,用 逆 來酸銅模紮,在他人無倣,貴自修是按時 ,央行发傅向人熊貫徹地於個人車所行耘之中,一牛学院过水萃 停,自一九六三月閂辦:今,陸經協同管約
暫的結果,而素需政己學習的結果;以大自 的网唘可烤容易,第二可使同學帶此袋受他人學,之旅 德山,第一可仃同學在彼此各服他人的活耐,以 「的互坦研究樣矿,雅度方面因市影學不少,倘若 一,當號碼到有些黑牛因的乏了同來彼此,
第二點就是「探本溯源」,同醜們剛醫呫鴨
各滋
我心痛,你会己之各有所好環境,甘機之质,耐治小各聯與答 何不想細在
LESSON THENTY-FIVE
(228) (o) Sulphide
(r) Nitrate
(p) Sulphite
(g) Chloride
(229)(s) Sulphite
(230) (u) Lead, zinc or
(v) Calcium - (x) Copper Sält:
(231) (2) zinc salt
(bb) Copper sal
ANSWERS TO EXERCISE 24
aluminium salt
(t) Sulphide
(w) Ferrous sa.
(y) Ferric salt
(co) Ferrous salt
(aa) Lead or aluminium salt.
(dd) Ferric salt,
GAS
COLOUR LITMUS ACTION WITH
SMELI
SPLINT
(a) Carbon dioxide
None
Faint
•Red
(b) Chlorine
Green Turns
ish Red
Boes not burn or support combustion
Does not burn
or support
yellow then is combustion
cbleached:
(e) Hydrogen
· None.
None
(d) Hydrogen
chloride.
Faint.
(not easy
to detect)
Irritat. Ingy chari acteristic
Burns with blue None (if flame; explodes pure)
if mixed with air
想
四邑工商總會學校畢業禮
「撈, 華日報四十五周年慶時舉辦美術比 來辦之昂愛滋食比衖,上、下午校內傷革草 比要,均會數亦獲優異獎,一九七〇年參加教歌 【失。過去多年以來,藏著舉辦之揪喝比賽、演雄
三期星日八廿月四年一七九一公年十六國民華中
該林
理事長陳百強、校監岁才生致詞及報告校務
·高級教育官林達鍌致詞 為學生述學習態度 並 以勗勉 該會首席副理事長鄒振猷頒發畢業證書 ・〔棒、香港四岛工科楠會學校昨日假該校「感知誆所肇事物的原委,探尋該事物的正本,以參加外,均稱,管司黑也完全部量中底 , 另加入联三十一人,陸少數團生因起當未獲批准 本校上午校參加升中試人數計三十八人拿下午校
加加校
儀式開始,先出席陳百幅會靜,一間價成就,然不是燕於他們本風筒蔥林梅英之成果。” 第六屆畢業生名單如下: 上午托、謝居雄,交衒源,慮更輝,黃榮江 均有啥加,此均有可於各老師的人不惟之智說,
那物的不古的,便核
姓名:
此新先問後再開
八年內,在察報揖助,終非長策,然若
·岑才生校監致詞概要如下: 香農門品工商會學笕號,右··校監岑小生致詞。额左 阿发言,四房,林间和,帝國榮,吳永康,吳 能 來,對藥,楊令祺,馬炳南,陳聲」
馬菜光志
星一泡,一萬號千尺,而作遗世之用,同時安一如前裁之一首融收的根鐵照。一本記者证)
Colour- RAN lessy
Does not burri
misty in
or support combustion:
Irritate. ing.
damp air
Fainens with blue
Rotten
Red
fàame, deposit-
Egg :
ing yellow sul-
phur on cold:
(e) Hydrogen Sulphide: Norie
接第五張第二頁)
(f) Nitrogen
(g) Nitrogen Peroxidı (or Dioxide)
surface
Does not burn: Wone:
Reddish- Red Does not burn Irritat- brown
or support combustion
智慧出版社主編
None
None
or support
̇combustion :
英文科
(十七)
1971 中學入學試試題預習專欄
ow read these sentences and in the same
the
tters in the right order,
liked tortoises and his mother bought one for him.
B. He fed it often and he loved it very muchə C. One day Ah Kwan went to unrket with his motheri
D. They came to a shop where they saw some tortoises. B. He brought it home and kept it in his garden,
ing char acteristic:
b) Nitric acid.
Vapour
Pale yel low fumes
Red Splint burns
-Irritat-
ing
As in the hall, B.
the counter,:
Oxygen:
None
None
Relights glow
·ing splint
None
(j) Sulphur dioxide
None Re
Does not burn Burning or support sulphur combustion
(k) Sulphur trioxide
White Rea
Does not burn Irritat- or support
(1) Water
None
None
Does not burn: None or support combustion
FINAL TEST. 1
CONVENTIONAL QUESTIONS
Give labelled diagrams, chemical equations and structural formulae where appropriate.
(Atomic weights: Kel, N=14, G1-$5.5, Cn12, 0-15, Fe-56)
1. A student conducted the following experiments:-
EXPERIMENT I = He placed a small piece of copper metal. in a beaker, To this he added a small:exceas of concentratec nitric acid, When the resulting reaction was complete he added a: small excess of sodium bicarbonate solution, He then transferred the contents of the beaker: to an evaporam ting basin and evaporated to dryness. The. basin and its contents were then heated strongly,
EXPERIMENT II He placed some iron and dilute sulphuric acid in a beaker which he heated until the metal was diasolved, He then cooled this solution and added a small excess of ammonia solution, The contents of the beaker were then, exposed to the air for a long time and final filtered
(a) In each experiment give a brief account of the react-
ions which occurred, naming the chemicals formed and stating any colour changes.
Describe briefly what steps you would takeit: (i) to convert the final product in Experiment I to
pure metallic copper;
(ii)to show the presence of sulphate ions in the
filtrate in experiment II.
(No Equations are required in this question).
2. (A) A student sets out to investigate experimentally th
catalytic acrion of manganese dioxide on hydrogen peroxide, Outline experiments, he could conduct in" his.school laboratory to investigate the followingte (i) The relative speed at which hydrogen peroxide is decomposed with, and without, manganese. dioxide added. (ii)There is a change of weight when manganese dioxide
"and liydrogen peroxide are mixed.
(b) 25.0 ml of à 1.0 molar (1.0 normal) solution of
sodium hydroxide was placed in a flask. 1.40 gm of an impure specimen of ammonium chloride was added. Thei flask and its contents were then carefully beated: until no more. ammonia gas was evolved. The resulting solution was found to be alkaline and was diluted to exactly 250 ml 50ml of this solution required 5.10 ml :ofo.1 mom lar (0.1 normal) hydrochloric acid for neutralisation. Calculate the percentage purity of the original impure!!
chloride..
31. The hats were kept, C. in drawers.
D. on straight boxes.
the ground..
32. The shop assistant was busy in
A. walking to and fro.
B. helping Mrs. Brow to walk properly.
helping Mrs. Brown to put on the hats.
D. taking the bats to Mrs. Browne
B. taking hats and helping Mrs, Brown to
put on the hats,
shop, Mrs. Brown hat tried
A. one hat only.
3. two hats.:
C. three hats.
D. nearly fifty hats.
E. nearly one hundred hats.
At the shop, Krs. Brown bought
A. no new hat.
B. one new hat.
c. two new hats.
D. three new hats.
B. fifty new hats.
shop assistant did not charge Kra. Brown
she was wearing her old hat B. ahe did not buy a new hat. any money because C. she was the only customer.
D she bought only an old hat.. E. she was very pretty.
10 marka)
SECTION B
The following passage needs punctuation. Putin
correct punctuation marks and capital lettera where: necessav.
what a lovely stamp you ve got said david Endeed it is Ive a pretty set mora too said
peter.
can I have a look at them
sure lets learn something from them replied
(20 marks)
Look at the example below. Each sentence has a letter. The sentences are in the wrong order. The right order is B, C, A, so the lettera B, C, are written in the answer
A. He helps his father a lot every day. Bsample 1 B. Wong Hong da a newspaper boy.
Early in the morning he gets out of bed.
HUaually he will be back at aix,"
"Hello, may I speak to Jackie?"
"Oh, yes, I will call again. Good-bye!" "Sorry, he is not in."
"When will he be back then?"
In the ship there were Mitchell and other
apacemon..
B. We were talking and enjoying the grand
view of the space.
C. I dreamt that I was travelling to the moon
in a spacerahip.
D. I had a wonderful. dream Iast night:
E. At last we landed on the moon and had a
pleasant walk there.
After the accident John was taken to hospital, Then a doctor came to look at him,
C. He was put into bed and a nurse bandaged his
wounds.
The doctor found that Johna arm was broken. He felt very painful on the bad.
ANSWERS TO FINAL TEST 2
SECTION A:
2. D
7
.C
5.
3. T
13. D
17. 8
181
20, R
23. B
25
R
33. D.
30. P 35. B
SECTION
TII.
"What a lovely a temp you've gott" said
David.
"Indeed it 18; 1.78 a pretty set more,
too," said Peter.
"Can I have a look at them?" "Sure. Let's learn something from
replied Petar.
2. D
3. A
3.A