Page 140 - Nilam_Publication_module_Chemistry_Form.pdf

MODULE • Chemistry Form 4

9 Which of the following sodium hydroxide solutions have 10 The diagram below shows 25.0 cm of 1.0 mol dm of
–3
3
concentration of 1.0 mol dm ? sulphuric acid and 50.0 cm of 1.0 mol dm of sodium
–3
3
–3
[Relative atomic mass: H=1, O=16, Na =23] are added hydroxide solution to form solution A.
3
Antara larutan natrium hidroksida berikut, yang manakah Rajah di bawah menunjukkan 25.0 cm asid sulfurik 1.0 mol dm dan
–3
–3
mempunyai kepekatan 1.0 mol dm ? 50.0 cm larutan natrium hidroksida 1.0 mol dm ditambah
–3
3
[JAR: H = 1, O = 16, Na = 23] bersama untuk menghasilkan larutan A.
I 5 g of sodium hydroxide dissolved in distilled water
–3
3
to make 250 cm of solution. 50 cm of 1 mol dm of hydroxide solution
3
3
–3
5 g natrium hidroksida dilarutkan dalam air suling 50 cm larutan natrium hidroksida 1 mol dm
menjadikan 250 cm larutan.
3
II 20 g of sodium hydroxide dissolved in distilled water
to make 500 cm of solution.
3
20 g natrium hidroksida dilarutkan dalam air suling
3
3
menjadikan 500 cm larutan. 25 cm of 2.0 mol dm
–3
III 250 cm of 2 mol dm sodium hydroxide solution is sulphuric acid
–3
3
3
added to distilled water to make 1 dm of solution. 25 cm asid sulfrik 2.0 mol dm –3 Solution A / Larutan A
3
–3
250 cm3 larutan natrium hidroksida 2 mol dm ditambah air
suling menjadikan 1 dm larutan. Which of the following is true about the solution A?
3
IV 500 cm3 of 2 mol dm sodium hydroxide solution is Antara berikut, yang manakah adalah benar tentang larutan A?
–3
added to distilled water to make 1 dm of solution. A The solution has a pH value of 7
3
500 cm larutan natrium hidroksida 2 mol dm ditambah air Larutan itu menpunyai nilai pH 7
–3
3
suling menjadikan 1 dm larutan. B The solution will react with any acid
3
A I and III only Larutan itu boleh bertindak balas dengan sebarang asid
I dan III sahaja C The solution turns a red litmus paper blue
Larutan itu menukarkan warna kertas litmus merah kepada biru
B II and III only D The solution will react with zinc to produce hydrogen
II dan III sahaja gas
C II and IV only Larutan itu bertindak balas dengan zink untuk menghasilkan gas
II dan IV sahaja hidrogen
D I, II, III and IV
I, II, III dan IV

138
Nilam Publication Sdn. Bhd.

06-Chem F4 (3P).indd 138 12/9/2011 5:55:58 PM