Hot Questions To Expect In Waec GCE Chemistry
2021 GCE Chemistry: What are the areas GCE will set Chemistry Questions from and how do I get GCE Chemistry 2021 OBJ And Essay Questions? GCE 2021 Chemistry Questions is what we shall discuss here.
GCE Chemistry is important to every GCE 2021 Science Candidate. Read on for Sample Questions GCE would set in 2021 Chemistry Objective and Theory or click here for Waec GCE 2021 Chemistry Syllabus.
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Waec GCE 2021 Chemistry 1 & 2 Questions And Answers
You have asked the questions, what are the areas Waec GCE sets questions in Chemistry? I am here to give you bold answers to your question.
To make this topic easy for you to understand, I will divide it into three sections. The three sections are:
- Waec GCE 2021 Chemistry Objective Questions
- 2021 Waec GCE Chemistry Essay Questions And Answers.
- Instructions To Pass GCE 2021 Examination.
GCE 2021 Chemistry Objective Questions
As usual, you will be given questions and options A to E to choose from. Normally, the number of objective questions (OBJ) you are to answer in Waec GCE 2021 Chemistry Science is 50.
- A. water
- B. mercury
- C. paraffin
- D. phenol
- A. calcium hydrogentrioxocarbonate (IV)
- B. calcium trioxocarbonate (IV)
- C. calcium tetraoxosulphate (VI)
- D. calcium hydroxide
- A. bad colour
- B. bacteria
- C. temporary hardness
- D. permanent hardness
- A. NO2
- B. NH3
- C. N2O
- D. NO2
- A. negative
- B. zero
- C. positive
- D. indeterminate
- A. further heating
- B. adding concentrated H2SO4
- C. cooling the acid solution with cold water
- D. bubbling air through the acid solution
- A. positive ion
- B. neutral atom of a metal
- C. neutral atom of a non-metal
- D. negative ion
- A. Reforming
- B. Polymerization
- C. Distillation
- D. Cracking
- A. 2.536
- B. 1.623
- C. 4.736
- D. 0.394
- A. 10.0s
- B. 12.5s
- C. 17.7s
- D. 32.0s
- A. endothermic
- B. exothermic
- C. reversible
- D. ionic
12. 22688Ra88226Ra †’ x86Rn86xRn + alpha particle
- A. 226
- B. 220
- C. 227
- D. 222
- A. trigonal planar
- B. octahedral
- C. square planar
- D. tetrahedral
- A. 54.0g
- B. 27.0g
- C. 13.5g
- D. 108.0g
- A. Low melting point
- B. Weak electropositive character
- C. High boiling point
- D. White lustrous appearance
16. The tincture of iodine means iodine dissolved in
A. ethanol
B. bromine chloride
C. chlorine water
D. water
View Answer & Discuss (1)
17. Temporary hard water is formed when rain water containing dissolved carbon(IV) oxide flows over deposits of
A. CaCO3
B. Na2CO3
C. Na2SO4
D. CaSO4
18. The acid anhydride that will produce weak acid in water is
A. SO3
B. NO2
C. SO2
D. CO2
19. In the laboratory preparation of ethyl ethanoate, the water present in the mixture is removed using a solution of
A. an hydrous CaCl4
B. concentrated NaCO4
C. dilute NaOH
D. concentrated H4SO4
20. Which of the following reactions would take place when concentrated sodium hydroxide solution is added to palm oil?
A. Esterification
B. Neutralization
C. Polymerization
D. Saponification
21. Starch could be converted to glucose by the process of
A. Condensation
B. Dehydration
C. Fermentation
D. Hydrolysis
22. Which of the following compounds is a secondary alkanol?
A. Ethanol
B. 2-methylbutan-2-ol
C. 3-methylpentan-2-ol
D. Propan-1-ol
23. Which of the following substances is a heavy chemical?
A. Ammonia
B. Barim Hydroxide
C. Hydrochloric acid
D. Tetraoxosulphate(VI)acid
24. Which of the following process does not take place in domestic water treatment?
A. Chlorination
B. Flocculation
C. Neutralization
D. Sedimentation
25. A substance responsible for the sour taste of unripe orange is
A. Alkene
B. Alkanol
C. Alkanoic acid
D. Alkanoate
26. Which of the following products of biotechnology can be used as a fuel in place of petrol?
A. Butane
B. Ethanol
C. Ethene
D. Propanol
27. Which of the following polymers in thermosetting?
A. Bakelite
B. Nylon
C. Polypropene
D. Polystyrene
28. Which of the following gases is monoatomic?
A. Argon
B. Chlorine
C. Nitrogen
D. Oxygen
29. The general formula of alkanones is
A. RCHO
B. R2CO
C. RCOOH
D. RCOOR
30. The constituent common to duralumin and alnico is
A. Co
B. Mn
C. Al
D. Mg
31. The shape of the S-orbital is
A. elliptical
B. spiral
C. circular
D. spherical
32. Aluminium hydroxide is used in the dyeing industry as a
A. dye
B. dispersant
C. salt
D. mordant
- A. 1.6 ×× 10-4
- B. 6.3 ×× 10-11
- C. 6.3 ×× 10-4
- D. 1.6 ×× 10-11
34. Incomplete oxidation of ethanol yields
- A. CH3COOH
- B. CH3COCH3
- C. CH3CH2OCH2CH3
- D. CH2CHO
- A. A saturated solution
- B. an acidic solution
- C. a buffer solution
- D. an alkaline solution
Read Also: How to answer GCE questions very fast
Chemistry Waec GCE 2021 Theory Questions And Answers
The following are the kind of questions you should expect in Waec GCE 2021 Chemistry Theory or Essay. They are hot cake questions:
- Write short note on the following:
A. Isotopy
B. Resonance
C. Isomerism
D. Reforming - Different between exothermic and endothermic reaction with the aid of equations.
- When few drops of concentrated trioxonitrate(V) acid is added to an unknown sample and wanned an intense yellow colouration is observed. The likely functional group present in the sample is
Waec GCE 2021 Examination Instructions
- Do not open your question paper until you are told to do so
- USE HB pencil throughout in the OBJ Section
- You are free to use Biro in the theory part
- You are allowed to use calculator to solve
- Make sure that you fill your name, Subject, paper, paper code and other examination details where necessary.
- Ensure that the texts in your question papers are boldly printed
- Behave yourself.
- Don’t let invigilators catch you using expo
That’s all for now… I shall update you when more real live questions and answers come up. However, I advise that you are hardworking so as to pass your Waec GCE once and for all.
Read Also: How to read and pass Waec GCE in one day
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What to expect I mean likely questions