8/13/2019 Paper 1 Section B Question-Answer Book B (1)

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B23DSCHM

NG KNG XINTI N N URY

ONG KONG IPLOA OF ONARY UATON XANAON 2013

CHEMISTRY PAPER 1

SECTION : Question-Answer Book B

This paper must be answered in Engish

F B

After the announcement of the star of theexaination, yo shold first write your CandidateNmber in the space provided on Page 1 and stickbarcode labes in the spaces provided on Pages ,3,5 and 9.

2 R f t th n in t ti n n th f

Pla c h bacd lab h.

8/13/2019 Paper 1 Section B Question-Answer Book B (1)

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PART I

Answer ALL questons. Wrte your answers n the spaces provided

1 Water s the most abundant copound on he Earh's surface t s ery mportant to lfe on Earh

(a) Draw he electron dagram for a water moecule, showng elecrons in the ouermos shells ny

(1 ark)

(b Nearly 98% of the water on Earh s sea water whch s not t or huan consuptonTe dagra below shows the set-up used n a mple dstllaton experment for obtanng waterom sea waer

water out

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