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SPM Chemistry A xplosive Module (Chemistry A Ticket For “U” ) GREEN ZONE [GZ]

21 Diagram 9 shows the cation test in solution X
Rajah 9 menunjukkan ujian kation dalam larutan X

Sodium hydroxide solution White precipitate soluble
+   
in excess sodium
Larutan Natrium hidroksida
Solution X hydroxide

Larutan X
Diagram 9 / Rajah 9 Mendakan putih larut
dalam larutan natrium
hidroksida berlebihan

Which of the following ion is present in solution X?
Antara yang berikut, ion manakah yang mungkin terdapat dalam larutan X?

A Ca 2+ C NH 4 +

2+
2+
B Mg D Zn

22 Diagram 10 shows the result of a series of test that is carried out by a student on solution Y.
Rajah 10 menunjukkan keputusan satu siri ujian yang dijalankan oleh seorang pelajar
terhadap larutan Y.

BaCl 2 (aq)

Solution Y white precipitate
Larutan Y mendakan putih

NaOH (aq) Pb(NO 3) 2 (aq)

blue precipitate white precipitate
mendakan biru mendakan putih

Diagram 10 / Rajah 10

Which of the following could be solution Y?
Antara berikut, yang manakah mungkin larutanY?

A Copper(II) chloride C Copper(II) sulphate
kuprum(II) klorida kuprum(II) sulfat

B Zinc chloride D Lead(II) sulphate
zink klorida plumbum(II) sulfat

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