ujian formatif asid dan alkali
TRANSCRIPT
Nama: _____________________________________________ Kelas: ___________
UJIAN FORMATIFSAINS TAHUN 5September30 minit Tiga puluh minit
JANGAN BUKA KERTAS SOALAN INI SEHINGGA DIBERITAHU
1. Kertas soalan ini adalah dalam dwibahasa.
2. Soalan dalam bahasa Inggeris mendahului soalan yang sepadan dalam bahasa Melayu.
3. Kertas soalan ini mengandungi dua bahagian: Bahagian A dan Bahagian B.
4. Kamu dikehendaki menjawab semua soalan dalam kedua-dua bahagian.
Kertas soalan ini mengandungi ___ halaman bercetak
Section ABahagian A
[ 10 marks ][ 10 markah ]
Answer all quetions.Jawab semua soalan.
1.
P Q R S
Figure 1 Rajah 1
Figure 1 shows substances P, Q, R and S. Which of the following are acidic ?Rajah 1 menunjukkan bahan P, Q, R dan S. Yang manakah bahan bersifat asid ?
A P and R B P and SP dan R P dan S
C Q and R D Q and SQ dan R Q dan S
2. Which of the following substances has effect on the blue litmus paper?Yang manakah bahan berikut menukar warna kertas litmus biru ?
I salt garamII vinegar cukaIII grape juice jus anggurIV toothpaste ubat gigi
A I and II only B II and III onlyI dan II sahaja II dan III sahaja
C I, II, and IV only D I, II, III and IVI, II, dan IV sahaja I, II, III dan IV
3.
Table 1 Jadual 1
Table 1 shows the results of a fair test on P, Q, and R when they tested with litmus papers .
Which of the liquids is neutral ?
Jadual 1 menunjukkan keputusan ujian ke atas P, Q, dan R apabila diuji dengan kertas
litmus. Cecair manakah neutral ?
A P only B Q onlyP sahaja Q sahaja
C P and R only D Q and R only P dan R sahaja Q dan R sahaja
4. Diagram 10 shows the result of two liquids, P and Q, when tested with litmus paper.Rajah 10 menunjukkan keputusan dua cecair, P dan Q, apabila diuji dengan kertas litmus.
What can you conclude about the properties of liquids P and Q ?
Apa yang kamu boleh simpulkan mengenai ciri-ciri cecair P dan Q ?
LiquidCecair
Red litmus paperKertas litmus merah
Blue litmus paper Kertas litmus biru
P Does not changeTidak berubah
Does not change Tidak berubah
Q Does not changeTidak berubah
Turns red Bertukar merah
R Turns blueBertukar biru
Does not changeTidak berubah
P QA Alkaline AcidicB Acidic AlkalineC Neutral AlkalineD Neutral Acidic
5. Which of the following is an alkaline food ?
Yang manakah merupakan makanan yang bersifat alkali?
I Milk of Magnesia Susu Magnesia
II Bittergourd juice Jus peria
III Water Air
IV Fruit juice Jus buahan
A I and II only B I and IV only
I dan II sahaja I dan IV sahaja
C II and III only D III and IV only
II dan III sahaja III dan IV sahaja
6. The following steps were carried out in an activity:
Langkah berikut dijalankan dalam satu aktiviti:
The juice of a fruit was squeezed
Jus buah diperah
Blue litmus paper changed to red when placed in the juice
Kertas litmus biru berubah ke merah apabila dimasukkan ke dalam jus
A little of juice was tested
Sedikit jus diuji
The juice would tasteJus ini mempunyai rasa
A sweet C bitterManis pahit
B sour D saltyMasam masin
7. Swee Leong tests a place of rice with blue and red litmus papers. Which of the following results is obtained ?
Swee Leong menguji satu pinggan nasi dengan kertas litmus merah dan biru. Yang manakah keputusan yang diperolehi ?
8.
9. The food items given have one common property. What is that property?
Item makanan yang diberi menunjukkan satu ciri sepunya. Apakah ciri tersebut?
A All are tasteless
Kesemuanya tiada rasa
B Change the colour of red litmus paper to blue
Kertas litmus merah bertukar kepada biru
C Change the colour of blue litmus paper to red
Kertas litmus biru bertukar kepada merah
D Do not change the colour of red or blue litmus paper.
Tiada perubahan warna untuk kertas litmus merah atau biru
Air mineral Nasi
Larutan gula Kicap
Blue litmus paper Kertas litmus biru
Red litmus paper Kertas litmus merah
A Turns red Bertukar merah
Turns blue Bertukar biru
B No change Tidak berubah
Turns blue Bertukar biru
C Turns red Bertukar merah
No change Tidak berubah
D No change Tidak berubah
No change Tidak berubah
9. Why does a piece of red litmus paper remain red when it is dipped into a glass of salt
water ?
Kenapa kertas litmus merah mengekalkan warnanya apabila dicelup ke dalam gelas yang
berisi air garam ?
A Salt water is acidicAir garam bersifat asid
B Salt water is alkalineAir garam bersifat alkali
C Salt water is neutralAir garam bersifat neutral
D Salt water does not have any propertiesAir garam tidak mempunyai apa-apa ciri.
10.Puan Fatimah has run out of tamarind for her cooking. Which of the following substances is not suitable to replace tamarind ?
Puan Fatimah sudah kehabisan asam jawa untuk masakannya. Bahan yang manakah yang tidak sesuai untuk menggantikan asam jawa?
A VinegarCuka
B Papaya fruitBuah betik
C Mango juice
Jus mangga
D Lemon juice
Jus lemon
Section B[10 marks]
Answer all questions.Jawab semua soalan.
1. Diagram 5 shows an experiment that is carried out by a student.
(a) State your observation on the blue and red litmus papers that are immersed in the soft
drink.
(i) Blue litmus paper:
___________________________________________________________________
[ 1 mark ]
(ii) Red litmus paper:
___________________________________________________________________
[ 1 mark ]
(b) Give a reason (inference) based on your observation in 1a (i).
[ 2 mark ]
(c) Give an example of a substance that belongs in the same group as the soft drink.
[ 1 mark ]
2. A group of pupils has tested the properties of three liquids with litmus papers. The
observation is recorded as shown in Table 1.
Liquid Tested with blue litmus paper Tested with red litmus paperLiquid X Remains blue Remains redLiquid Y Turns red Remains redLiquid Z Remains blue Turns blue
(a) State conclusions for the tests.
[ 1 mark ]
(b) Name one example of a food item which has the properties of liquid X and liquid Y
Liquid X :________________________________________________________
Liquid Y :________________________________________________________
[ 2 mark ]
(c) Predict the observation if liquid X is replaced with liquid detergent
[ 1 mark ]
(d) Give a reason for your answer in (c).
_______________________________________________________________________
[ 1 mark ]
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