Q 44 :O

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Q 44 :O

Post by nadiah azli on Thu Sep 02, 2010 8:37 am

why D ? i need some help here scratch

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Re: Q 44 :O

Post by hazlinda binti fauzi on Thu Sep 02, 2010 8:40 am

i didn't undrstnd this question...
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Re: Q 44 :O

Post by Mimi Fazzlinda on Thu Sep 02, 2010 8:42 am

the answer d coz x is most reactive when react with oxygen.. the second reactive is y and the last is z .. so the lowest reactive with oxygen is z than y and the highest is x.. bom
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How to answer Q44

Post by ezzaty zainidi on Thu Sep 02, 2010 8:44 am

i think...(not very sure..)

metal X reacts with YO..
then X is more reactive than Y

metal Y reacts with ZO..
then Y is more reactive than Z

so X is on topof at higher position than Y in reactivity series..
Z is at lower position than below Y..

ascending order of reactivity - Z , Y , X


Last edited by Admin on Fri Sep 03, 2010 9:06 am; edited 1 time in total (Reason for editing : Good application of knowledge. Be more specific in ur explanation!)

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answer...Qs 44

Post by Farah Dini on Thu Sep 02, 2010 8:46 am

when 2X react wit YO...X can displace reduce YO
So, X is more reactive than Y..
then,Y react wit ZO,Y displace reduce ZO,
So,Y is more reactive than Z..

So,according to the reactivity in ascending order..Z,Y,X


Last edited by Admin on Fri Sep 03, 2010 9:13 am; edited 1 time in total (Reason for editing : Displacement involve a more electropositive metal & a solution with a less electropositive metal ion.)

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Re: Q 44 :O

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