Qualification > Queries

Chemistry Unit 3b As exam..

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Meticulous:
Youre right coat. Trust me

coatseville:
oh thanks :)

M-H:
good...really good paper:)

Book lover22:
Salamzz!

It was a tricky paper like u had 2 think hard! not da typ dat da answer cums wid da flow!
nway only few doubts:

1.wat was da colour change 4 da starch indicator?
2.wat was da test 4 da OH- ion?

coatseville:
The colour change was from blue to colourless
and the OH test is add phosphorus pentachloride and hydrogen chloride (steamy fumes) given off!

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