Re: Attention 4A and 4B students - Mistakes in TYS -- Chemistry

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Date Posted: 06:42:15 11/02/01 Fri
Author: Mr. Yeo Woei Ter
Subject: Re: Attention 4A and 4B students - Mistakes in TYS
In reply to: Mr. Yeo Woei Ter 's message, "Attention 4A and 4B students - Mistakes in TYS" on 06:39:37 11/02/01 Fri

Hi again!

For the error on Page (10)6, the question I'm referring to is Question 28!

>Hi to all 4A and 4B students!
>
>Please take note of the following mistakes in your ten
>years series!!!
>
>In some cases, the writer has provided the wrong
>answer. In other cases, the writer has conveniently
>removed the correct option!!! This happened because
>back in the early 90s and 80s, there were five options
>for each MCQ question. And the writer happened to
>remove the correct option from the question!!! As a
>result, some questions cannot be done at all! And in a
>few cases, I guess it's due to typo errors!
>
>Page (2)14 Question 46.
>The correct answer is D. Answer provided is wrong.
>
>Page (2)15 Question 54.
>Typo error for option B. It should read: below that of
>lead. Tne correct answer is B.
>
>Page (6)7 Question 33
>Correct answer should be A.
>
>Page (7)4 Question 17
>Correct answer is D.
>
>Page (9)2 Question 8
>There is no answer here. Because the writer removed
>the correct option. The correct answer should be:
>Acidified potassium dichromate(VI) : orange to green
>Aqueous potassium iodide : no change
>
>Page (10)6
>Similar error as above. The correct option has been
>removed!! The correct answer should be zinc hydroxide!
>Because it is amphoteric!
>
>Page (16)1 Question 2
>Similar error!!! The correct answer should be a
>mixture of elements and compounds! Air contains carbon
>dioxide and water vapour which are compounds.
>Nitrogen, oxygen, noble gases are elements.
>
>Page (18)4 Question 16
>The correct answer is B.
>
>Page (19)5 Question 25
>The writer must be sleeping and removed the correct
>option! The correct answer should read: They have the
>same empirical formula. This is not true about
>the homologous series of alcohols.
>
>If anyone has spotted any errors, please discuss it
>here, so everyone can take note of it!
>
>Please ask everyone to see this message! It's
>important. Can you help me to tell those without
>internet access as well? Thank you very much!!
>
>Page

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