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GCE Past Questions for Chemistry

Gce Past Questions for Chemistry. The Gce past questions these past questions and answers is past questions and answers are not even known to be used in the others Gce Past Questions for Chemistry.

Free Nnpc Past Questions and Answers PDF

Past questions helps identify your strength and weaknesses and capitalize on it. We all know that there are some subjects you know more than others. Understanding this helps you to first answer the subjects you know and like the most before moving to other less interesting and difficult questions.

Student who use past questions and answers give testimonies on how it helped them perform better in the examination. This past question feedback give us the gut to compile more for others who will be in need of it.

Why you need Gce Past Questions for Chemistry

Gce Past questions helps identify your strength and weaknesses and capitalize on it. We all know that there are some subjects you know more than others. Understanding this helps you to first answer the subjects you know and like the most before moving to other less interesting and difficult questions.

How is Gce Past Questions for Chemistry Pattern?

Gce past question past questions and answers are patterned in multiple choice format and it is usually computer based. All Candidate are expected to be in the hall on time with their exams materials. Mathematics involves calculation which means you are to bring mathematical instruments, logarithm tables and calculator to assist you in the examination  (IF IT IS ACCEPTED BY THE EXAMINER.

WAEC GCE Chemistry Past questions and answers (Previous Years)

1. What condition favors the formation of the product for the endothermic reaction, N2O4(g) —><—– 2NO2(g)

A. Decrease in pressure

B. A decrease in volume

C. An increase in pressure

D. A constant volume

ANSWER: A ( Decrease in pressure)

2. How many alkoxy alkanes can be obtained from the molecular formula C4 H4O4

A. 1

B. 2

C. 3

D. 4

ANSWER: C (3)

3. Element Y has two isotopes Y and Y present in the ratio 1:3. The relative atomic mass of Y would be

A. 20.5

B. 21

C. 21.5

D. 22

ANSWER: C (21.5)

4. 100.0g of KClO3 was added to 40.0 cm^3 of water to give a saturated solution at 298K. If the solubility of the salt is 20.0 moldm^-3 at 298K, what percentage of the salt is left undissolved? {K= 39, Cl = 35.5, O = 16}

A. 80%

B. 60%

C. 5%

D. 2%

5. Elements X and Y have electronic configuration 1S22S22P4 and 1S22S22P63S23P1 respectively. When they combine the formula of the compound formed is

A. XY

B. Y2X3

C. Y2 X3

D. Y X2

ANSWER: B (Y2X3)

6. A solution of 0.20 mole of NaBr and 0.20 mole of MgBr2 in 2.0 dm3 of water is to be analysed. How many moles of Pb(NO3 )2 must be added to precipitate all the bromide as insoluble PbBr2

A. 0.30 mol

B. 0.10 mol

C. 0.20 mol

D. 0.40 mol

ANSWER: A (0.30 mol)

7. Na2CO3 + HCl —-> NaHCO3 + NaCl. The indicator most suitable for this reaction should have pH equal to.

A. 3

B. 5

C. 7

D. 9

ANSWER: D (9)

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7 Tips to Prepare for Gce Exams

  1. Don’t make reading your hobby: A lot of people put reading as a hobby in their CV, they might be right because they have finished schooling. But “You” are still schooling, so reading should be in top priority and not as a hobby. Read far and wide to enhance your level of aptitude
  2. Get Exams Preparation Materials: These involve textbooks, dictionaries, Gce chemistry Past Questions and Answers, mock questions, and others. These materials will enhance your mastering of the scope of the exams you are expecting.
  3. Attend Extramural Classes: Register and attend extramural classes at your location. This class will not only help you refresh your memory but will boast your classroom understanding and discoveries of new knowledge.
  4. Sleep when you feel like: When you are preparing for any exams, sleeping is very important because it helps in the consolidation of memory. Caution: Only sleep when you feel like it and don’t oversleep.
  5. Make sure you are healthy: Sickness can cause excessive feelings of tiredness and fatigue and will not allow you to concentrate on reading. If you are feeling as if you are not well, report to your parent, a nurse or a doctor. Make sure you are well.
  6. Eat when you feel like: During the exam preparation period, you are advised not to overeat, so as to avoid sleep. You need to eat little and light food whenever you feel like eating. Eat more of fruits, drink milk and : glucose. This will help you to enhance retention.
  7. Reduce your time in social media: Some people live their entire life on Facebook, Twitter, WhatsApp, Messenger chat. This is so bad and catastrophic if you are preparing for exams. Try and reduce your time spending on social media during this time. Maybe after the exams, you can go back and sleep in it.

If you like these tips, consider sharing them with your friends and relatives. Do you have a question or comments? Put it on the comment form below. We will be pleased to hear from you and help you to score as high as possible.

We wish you good luck!!!

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