From the previous post, we have started on our Mini Series on Tough MCQs.
Purpose is to enquire that students are exposed to tougher & tricky chemistry Multiple Choice Questions (Paper 1) that we have observed for the last 10 years.
How come i know them, you may asked? Cos i have been compiling and analyzing these questions for my students year-after-year, and sharing with them to ensure that they know how to avoid the common mistakes and traps that many other students have fallen into.
You know what – Usually this “tough” questions are Application Type Questions that just need a cool head and good chemistry concepts to get it right. It isnt that tough at all.
Let’s continue with more questions below:
Question 1: Why is Sodium classified as Metal?
a) It is a pure substance
b) It is a good conductor of electricity
c) It exists as atoms, not molecules
d) It is very soft
Question 2:
Buckminsterfullerene was discovered in 1985 and it has a perfect sphere with formula C60. From this information, what can you deduce about it?
a) It contains only one element
b) It is a compound of 60 elements
c) It is a mixture of 60 atoms
d) It is a mixture of 60 elements
Question 3: When mercury is heated, it forms mercury and oxygen,
Mercury oxide (s) –> mercury (l) + oxygen (g)
What can you deduce from the above information?
a) During the heating of mercury oxide, all three states of matter exist
b) Mercury oxide is a mixture
c) Mercury oxide is a silver solid
d) The composition of mercury oxide varies during heating
PS: Try out the questions and enter your suggested answers (and comments) right below, so that others can come in to share their answers and thought process.
It came to my awareness that the Ministry of Education (MOE) will be setting clearer rules to curb false and misleading ads by Private Schools.
I was watching Channel News Asia yesterday and heard of this news that many Private Schools are placing lots of misleading ads to attract students to join their schools.
It is important for me to blogpost about this since i noticed that portion of the readers using this chemistry blog-site are re-taking their O Levels as Private Candidates.
This is part of MOE’s efforts to strengthen the current regulatory framework for private education and the following will be done by them:
Set up an independent Council for Private Education
Ensure proper use of quality labels, symbols and trademarks by private schools in advertisements & promotional material
On the students’ part, before you enroll into a Private School, you might want to:
Go to the Private School’s Administrative Dept and asked them on course details carefully
Verify that what they state in the Brochures/Phamplets are really what is being offered to you
Be very specific on their credentials and capability. i.e. if you looking for a private school with MOE-trained teacher to help you, it is important for you to ask them specific questions such as “Are the teachers MOE-registered teachers or NIE-trained teachers?” NIE-trained teachers will be what you are looking for in this case. MOE-registered teacher is just a registration by many tuition centres and private schools to ensure they are more marketable
Hope this information is helpful to students (and their parents) that are continuing their higher education as a Private Candidate.
If you need more information or clarification on Private Schools, you can always go to:
PS: Drop me a comment. I would love to hear from you. Of course, i welcome all suggestions on how i can improve my ways of communicating Chemistry.
PPS: If you are looking for more Chemistry Phenomenons, in order to associate it to abstract Chemistry Theories, you can check out CHEMISTRY ARCHIVES on CHEMISTRY PHENOMENON
