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p1 chemistry, q-21 june 2000

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mr_scholes:
What's the answer for p1 chemistry june 2000 q 21??????

....:

--- Quote from: mr_scholes on June 11, 2009, 03:58:28 pm ---What's the answer for p1 chemistry june 2000 q 21??????

--- End quote ---
A, aluminium forms white, iron forms green or brown, and although not in course, chromium forms green too.

mr_scholes:

--- Quote from: i-insane on June 11, 2009, 04:00:43 pm ---
--- Quote from: mr_scholes on June 11, 2009, 03:58:28 pm ---What's the answer for p1 chemistry june 2000 q 21??????

--- End quote ---
A, aluminium forms white, iron forms green or brown, and although not in course, chromium forms green too.

--- End quote ---


could u please copy the question and the options because mine isn't very clear
By the way why is q30 A??

Ghost Of Highbury:
it has to be "C"
as SO2 plus H2O gives sulphuric acid
the pH of an acid is below 7 and turns blue litmus paper red

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