Tag Archive: Chemistry Questions

Successful Completion of annual Score 100% MCQ Mastery Workshop 2010

Updates from O-Levels students that have taken the Pure Chemistry Paper 1 (MCQ) on 12th Nov 2010:

“Hi Sean. 7 questions from the Score 100% Chemistry MCQ Mastery Workshop” came out for Chemistry Paper 1!”
- Timothy Wang, ACS(Independent) 2010 [Text sms on 12th Nov]

“Thank you very much Mr Chua! Some same exact questions that you gave us in the wkshop came out in the exam!! I could also apply whatever you taught us throughout this year…Thanks a lot for your guidance, Mr Chua! =) ”
- Nanthini, St. Margaret School 2010 [Text sms on 12th Nov]

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I am pleased to share with you the successful completion of the annual GCE O-Levels Pure Chemistry “Score 100% MCQ Mastery Workshop 2010″ on 6th November 2010.

A total of 62 GCE O-Levels students attended this awesome  annual event with the aim of helping them to score high for their Pure Chemistry Paper 1 (MCQ) Paper which has an overall weightage of 30%.

I am so proud of this group of students taking time off to attend this workshop. There is a say that “80% of the Success is about taking the necessary Actions” and you can certainly know that this group of students are serious in improving their overall Chemistry grades.

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Now, i would like to wish every GCE O Levels Chemistry (Pure Chemistry and Combine Science Chemistry) students the best in their MCQ Paper. Remember to manage your time and shade your answers carefully.

PS: You can click the link below for a collections of Chemistry MCQ questions that were discussed in this chemistry blog.

>> http://www.simplechemconcepts.com/tag/chemistry-mcq/

PPS: Feel free to let anyone know about this if you think they can benefit from it.

O Level Chemistry: Mole Calculations / Preparation of Salts

O-Levels Pure Chemistry and Combine Science students in Singapore:

Hope you are revising well for your upcoming Chemistry Exam in 17 days time.

If you are looking for a programme to assist you to UP Your Chemistry Grades in such short time, we have one last workshop for you. Click Score 100% MCQ Mastery Workshop for details! Understand there are only 5 4 seats left!

For the last 2 weeks, i have been receiving many emails on questions related to Mole Calculations…many are based on the past years papers by University of Cambridge Local Examinations Syndicate (UCLES) and the Ministry of Education, Singapore (MOE).

I understand that many of you in Singapore are not satisfied puzzled with the answers provided by the Ten Years Series (TYS) booklet available in major bookstores, and the frustration as you prepare for exams. [2011 O-Levels students - i have something for you next year! You will going to love it! Subscribe to this blog and stay tuned!]

Back to 2010 O-Levels students,

I will not be able to discuss the ACTUAL O-Level question here due to copyright matters. Instead, i will try my best to share SIMILAR (but NOT IDENTICAL) questions and invite discussions.

Let’s try out this Mole Calculation’s question:

Question 1:

It was found that 10 cm3 of a 0.05 mol/dm3 solution of the chloride of a metal, X, needed 10 cm3 of a 0.1 mol/dm3 silver nitrate solution for complete reaction. What is the formula of the chloride?

A. X2Cl

B. XCl

C. XCl2

D. XCl3

Try it first on your own! Once you have an answer, find out the Thought Process and my Suggested Solution by clicking the link below.

Enjoy!

O Level Chemistry: Acids & Bases

With GCE O Levels Chemistry (Pure) and Combine Science Examinations in about 37 days time, i hope you are siphoning out some quality time to revise on your Chemistry Concepts.

In view that you might be looking for more questions to attempt, you can try out this question that was sent to me by my student from Cedar Girls.

Question:

Phosphorus and nitrogen are both in Group V of the Periodic Table.
Which ions are produced when phosphine, PH3, dissolves in water?

A) PH3+, H+

B) PH4+, H+

C) PH3+, OH-

D) PH4+, OH-

Go try it out and leave your suggested answer and thought-process below.

PS: Feel free to send it to your friend that might benefit from this post.

PPS: Remember that mastery of Chemistry requires you to understand the key concepts and the ability to use it for application questions. Rote memorisation alone will not help you to achieve the grades you desire. You have 37 days more! Do something!