O Level Chemistry Made Easy
More O Level Chemistry Exam-based questions on Organic Chemistry / Macromolecule / Polymer:
Question:
Fat and Terylene are:
A) Natural polymers
B) Polyamides
C) Polyesters
D) Synthetic polymers
Try it out!
PS: Leave your suggested answers in the “Comments” section below.
Rgds,
Sean
More O Level Chemistry Examination-Based questions on Acids and Bases:
Question:
Which of the following statements is true of the hydroxide ion?
A)It is a product of reaction btw hydrogen and oxygen
B)It is present in aqueous ammonia
C)It is present in pure alcohol
D)It is present in pure water
Show your explanations. Leave your suggested answers in the “Comments” section below.
Rgds,
Sean
Question from a Top School 2007 O Level Chemistry Prelim Paper:
Question:
Astatine is a Group VII element below Iodine in Periodic Table. Which of the following statements concerning Astatine is correct?
A) It is a liquid at room temp and pressure.
B) It is a stronger oxidizing agent than iodine
C) It reacts with sodium ti form an ionic compound
D) Its diatomic molecules are held together by weak covalent bonds
Should be a manageable question. Enjoy doing!
PS: Leave your suggested answers in the “Comments” section below.
Rgds
Sean
Halo Students,
Chemistry Practical is round the corner and Chemistry Paper 2 in less than 3 week time.
Hope your preparation is going well.
Since this is the weekend, i think you might want some more conceptual chemistry questions to think it through. Here is the start of more to share:
Question:
Calcium Carbonate decomposes more readily on heating than sodium carbonate. Suggest a reason for this.CaCO3 –> CaO + CO2
Na2CO3 –> Na2O + CO2
Think about it.
PS: Leave your suggested answers in the “Comments” section below.
Rgds
Sean
what would happen if damp(moist) iron ore were placed in the blast furnace?
Can the student that post this question share with us how you got this question and perhaps share some light on the answer (if any). Moist Iron Ore might not necessarily react with the CO.
Hear from you,
Sean
Master Trainer for Chemistry
www.SimpleChemConcepts.com
Try this Mole Concepts O Level Chemistry questions:
Question:
If 2g of hydrogen gas contains x molecules, how many molecules would 2g of nitrogen gas contain?A) x
B) 7x
C) x/14
D) x/28
Show me the working briefly on how you derive your answer. This way we can determine your concepts for this chapter.
ps: Leave your suggested answers in the “Comments” section below.
Rgds
Sean