SEMINAR INTENSIF KIMIA UNTUK PELAJAR TINGKATAN 5 PADA 29/6/2012

Para pelajar sedang tekun mengikuti Seminar Intensif Kimia  dan ceramah pendedahan Neuro Linguistic Programming  anjuran bersama SMKA Sharifah Rodziah dengan Impact Training Consultant

PENYAMPAIAN HADIAH UNTUK PENCAPAIAN CEMERLANG KIMIA PEPERIKSAAN PERTENGHAN TAHUN 2012 TINGKATAN LIMA DAN TINGKATAN EMPAT

Pn. Zaini menyampaikan baucer hadiah kepada Farah Yusof (5AK) , salah seorang pelajar yang mendapat markah cemerlang dalam peperiksaan pertengahan tahun.

Salah seorang lagi pelajar cemerlang kimia - Sharifah Nur Amalina (5AK)

Senyuman daripada seorang penerima hadiah - Siti Nabihah (5AK)

                                   Penerima-penerima daripada pelajar tingkatan 4

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ANSWERS FOR CARBON COMPOUNDS HOMEWORK

1 (a)	But-1-ene                             but-2-ene       2-methylpropene [any two correct structural formula and name]	1+1 1+1
(b) (i)	X :  propanol / propan-1-ol / propan-2-ol Y :  propan-1,2-diol Z :  propane	1 1 1
(ii)	Reaction I   :  C3H6  +  [O]  +  H2O  →  C3H6(OH)2 Reaction II  :  C3H6  +  H2O  →  C3H7OH Reaction III :  C3H6  +  H2  →  C3H8	1 1 1
(c)	1.  Hexene is an unsaturated hydrocarbon while hexane is saturated        hydrocarbon 2.  Hexene has a double bond between carbon and carbon atoms 3.  Hexene undergoes addition reaction when it reacts with bromine      water 4.  Hexane has a single bond between carbon and carbon atoms 5.  Hexane does not undergo addition reaction when it reacts with      bromine water 6.  % of C in hexane, C6H14  = 6(12) x 100 %                                                       86 7.                                           =  83.7 % 8.  % of C in hexene, C6H12  = 6(12)    x 100 %                                                      84 9.                                           =  85.7 % 10. The percentage of carbon atoms in hexene is higher than in hexane	1 1 1 1 1  1 1 1 1 1
	Total	20

2	(a)	(i)	Formula that shows the actual number of atom of each element in a compound/molecule		1
		(ii)	CnH2n+1OH     n=1,2,3……		1
	(b)	(i)	Oxidation		1
		(ii)	Acidified K2Cr2O7 // acidified KMnO4		1
	(c)		[ any TWO correct  isomers]		2
	(d)		1.      Functional  diagram 2.      label: glass wool + butanol, butene gas, heat	1 1	2
	(f)	(i)	Butyl butanoate		1
		(ii)	C3H7COOH + C4H9OH ® C3H7COOC4H9 + H2O 1.      correct formula of reactant 2.      correct formula of product	1 1	2
			TOTAL		11