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WAEC EXPO ECONOMICS



BATCH 1. 7:00AM (14th March) 2020 JAMB CBT CHEMISTRY QUESTIONS AND ANSWERS


BATCH 1. 7:00AM (14th March) 2020 JAMB CBT CHEMISTRY QUESTIONS AND ANSWERS

BATCH 1. 7:00AM (14th March) 2020 JAMB CBT CHEMISTRY QUESTIONS AND ANSWERS



*1 :- the element with an electron configuration 1s2 2s2 2p6 3s23p64s2*

ANSWER = a noble gas

*2 :- ethanoic acid is monobasic because its*

CORRECT ANSWER = has one replaceable hydrogen molecule

*3 :- the type of bond in nitrogen molecule is*

CORRECT ANSWER = covalent

*4 :- in the hydrogenation of benzene, the catalyst used is*

CORRECT ANSWER = Ni

*5 :- the acid found in sour milk is*

CORRECT ANSWER = lactic acid

*6 :- transition metals with higher oxidation state will form oxides that

are*

CORRECT ANSWER = basic

*7 :- the iupac nomenclature of the compound above is*

CORRECT ANSWER = pent-2-yne

*8 :- in the diagram above X is*

CORRECT ANSWER = H2

*9 :- if 200cm3 of oxygen passes through a porous plug in 100sec.find

the time taken for the same volume of hydrogen to pass through the

same porous plug*

CORRECT ANSWER = 25s

*10 :- the method used in purifying sugar is*

CORRECT ANSWER = crystallization

*11 :- the activation energy of a chemical reaction can be lowered by*

CORRECT ANSWER = the addition of a catalyst

*12 :- in the equation above X is*

CORRECT ANSWER = CH3COOCH2CH3

*13 :- a solubility curve is a plot of the solubility of solute against*

CORRECT ANSWER = TEMPERATURE

*14 :- the method that is not economical for the removal of hardness in

water for town supply is*

CORRECT ANSWER = permute

*15 :- in the electrolytic extraction of sodium from fused sodium chloride

calcium chloride is usually added to*

CORRECT ANSWER = remove impurities

*16 :- grades of petrol having octane number nearer zero will cause a

motor car engine to ‘*

CORRECT ANSWER =

*17 :- nickel is plated on steel to*

CORRECT ANSWER = increase its strength

*18 :- the solubility in mol/dm3 of 20.2g of potassium

trioxonitrate(V)dissolved in 100g of water at room temperature is*

CORRECT ANSWER = 2

*19 :- what is the atomic number of an element having 127 neutrons and

82 electrons*

 *CORRECT ANSWER = 82

*20 :- 28.80CM3 OF NITROGEN AT 15c is cooled to 0C.its volue ar

constant pressure is*

*CORRECT ANSWER = 27.3

*21 :- what physical property of alkane decreases as the number of

carbon atoms increases*

*CORRECT ANSWER = solubility

*22 :- which of the following substances are made by polymerization*

*CORRECT ANSWER = nylon and artificial rubber

*23 :- which of the following compounds is unsaturated*

*CORRECT ANSWER = methylbenzene

*24 :- a compound contains 31.9% potassium 28.93 chlorine and the

remaining oxygen. What is the chemical formula of the compound?*

*CORRECT ANSWER = KClO2

*25 :- the use of neon light in aerodrome beacons is due to its*

*CORRECT ANSWER = COLOUR

*26 :- K4Fe(CN)6 is an example of a

*CORRECT ANSWER = complex

*27 :- if T change in s is small relative to change in H at room

temperature the value of change in G will be*

*CORRECT ANSWER = positive

*28 :- the solubility of alkanols in water is due to the presence of*

*CORRECT ANSWER = hydroxyl group

29 :- when lubricating oil is redistilled, it yields*

*CORRECT ANSWER = petroleum jelly

*30 :- the iupac nomenclature of K2Cr2O7 SI*

*CORRECT ANSWER = potassium heptaoxochromate(VI)

*31 :- alkynes burn with smoky luminous flame due to high

*CORRECT ANSWER = carbon content

*32 :- ozone is known for its ability to*

*CORRECT ANSWER = attack the respiratory tract of organisms

*33 :- which of the following properties is peculiar to graphite?*

*CORRECT ANSWER = it is unreactive

*34 :- calculate the amount in moles of zinc that will be deposited by

passing 10 faradays of electricity through a solution of zinc salt*

*CORRECT ANSWER = 5

*35 :- the air pollutant that dissolves in water due to produce acid rain is*

*CORRECT ANSWER = O3

*36 :- the property pecuiliar to pure oxygen is that it*

*CORRECT ANSWER = is lighter than air

*37 :- the principal property that determines the method of an extraction

of a metal from its ore is its*

*CORRECT ANSWER = position in the activity series

*38 :- when water is added to calcium oxide, it forms*

*CORRECT ANSWER = calcium hydroxide

*39 :- in the reaction above, the reverse reaction can be favored by*

*CORRECT ANSWER = decreases the temperature

*40 :- an element with electron configuration 1s2 2s2 2p6 3s2 3p4

belongs to the*

*CORRECT ANSWER = p-block


Frequently Asked Qestions and Answers

What Is The Difference Between WAEC And WASSCE?

What is the difference between Waec and Wassce?

The West Africa Examination Council (WAEC) is the governing body conducting the WASSCE.
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Is 21 too old for university?

21 isn't too old to start anything. Seriously though, who is going to be able to tell you are two years older. It's a none issue. It's probably a better time to start uni than an 18 year old in my opinion.
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Exam certificates | O-level Explanation of results | O-level ... - AQA

Is a grade D at O level a pass?

Results which met the Ordinary standard (grades 1-6) were recorded as Pass. ... Grades D and E indicated a lower standard of attainment, but were still judged sufficient to be recorded on the certificate. Grade E or below was ungraded and not recorded on the certificate.
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West African Senior School Certificate Examination - Wikipedia

What is Waec certificate called?

WASSCE Nov/Dec, also known as General Certificate Examination (GCE) or WAEC GCE, is a private examination and uniforms are not required but biometric registration is compulsory as in the former.
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WAEC Timetable for May/June Examinations 2020 - MySchoolGist

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According to the timetable, the West African Senior School Certificate Examination (WASSCE) for school candidates, 2020, will commence on 6th April, 2020 and will end on 5th June, 2020.
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Calculating your aggregate score: JAMB's score + O ... - AskNigeria

How is Waec aggregate calculated?

A1: 1 x 4 = 4 B2: 3 x 3.6 = 10.8 C4: 1 x 2.8 = 2.8 Total points: 4 + 10.8 + 2.8 = 17.6 Now, we divide the UTME by 8 i.e 280 ? 8 = 35 So, the aggregate score will be 17.6 + 35 + Post-UTME score.
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How can I pass a test without studying?

0:193:44Suggested clip 119 secondsHOW TO PASS ANY TEST WITHOUT STUDYING - YouTubeYouTubeStart of suggested clipEnd of suggested clip

Original WAEC Certificate Collection: How To Go About It Easily

How do I get my original Waec certificate?

So, if yours is an internal examination, kindly go to your school for collection. For private candidates, you need to go to the nearest WAEC office and make inquiry. Just remember, if it's been more than a year since your certificate was released, you will have to pay a fee to collect your certificate.
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Is NECO Certificate Accepted Outside Nigeria? (Read Here ...

Is NECO certificate accepted internationally?

The answer is yes. NECO can be used to study abroad but not all schools abroad accept it. ... First of all, an applicant with a NECO result must sit for a proficiency English language exam such as GRE, IELTS, SAT, ACT, PSAT, TOEFL, GMAT, and the likes.
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Universities Accepting WAEC, NECO, NABTEB and GCE, How to ...

Can I use Neco to enter university?

Yes, you can use NECO (be it NECO June/July or Nov/Dec) to gain admission into any university of your choice. Generally, all higher institutions accept NECO just like WAEC, GCE and NABTEB. You can as well combine your NECO with another NECO or any other exams type to gain admission.
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Is D7 accepted in University of Ghana? - LegonConnect

Do universities accept d7?

Currently, public universities don't accept D7 for core subjects in admission purposes.
Currently, public universities don't accept D7 for core subjects in admission purposes.Feb 10, 2020

Buy WAEC Scratch Cards Online ? Buy WAEC Result Checker ...

Which bank sells WAEC scratch card?

WAEC Scratch cards can also be purchased at the National Office of WAEC and at any of its zonal and branch offices across Nigeria. It may also be bought from any of the branch offices of Fountain Trust Bank Plc across Nigeria.
WAEC Scratch cards can also be purchased at the National Office of WAEC and at any of its zonal and branch offices across Nigeria. It may also be bought from any of the branch offices of Fountain Trust Bank Plc across Nigeria.

Junior Waec (BECE) 2020/2021 Registration And Examination Date ...

Which day will junior Waec start?

Please have it in mind that the junior WAEC registration for 2020/2021 actually started around Monday, October 8, 2019 , and will close on Friday, December 2019 .

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What is the best study method?

The best study spot is one that is quiet, well-lit, and in a low-traffic area. Make sure there is a clear workspace to study and write on. For every 30 minutes, you study, take a short 10-15 minute break to recharge. Make studying less overwhelming by condensing notes from class.
The best study spot is one that is quiet, well-lit, and in a low-traffic area. Make sure there is a clear workspace to study and write on. For every 30 minutes, you study, take a short 10-15 minute break to recharge. Make studying less overwhelming by condensing notes from class.

NECO Registration Form 2020/2021 and Latest Exams Updates ...

How much is Neco Nigeria?

To register for NECO examination, candidates are to obtain a draft and pay a non-refundable fee of Twelve Thousand Naira Only (N12,000) paid via bank draft or to school management if internal registration. The payment can be done in any NECO office, banks and Nipost offices nationwide.
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Can One Use NABTEB Result To Gain Admission Abroad? See ...

Can I use Nabteb to study abroad?

See Answer. Can i Use my NABTEB Result to study at any University or Institution Abroad? ... The Results offered after participating in NABTEB Examination is called NABTEB RESULT and it can be used to gain admission into Universities, Polytechnics or Colleges of Education.
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Does Waec result expire?

WAEC result is not valid for 10 years ? waec registrar. ... the registrar clearly stated that Waec result is valid for life. Waec result does not expire in as much as the owner is still alive, the result can be used .

Compulsory Subject For Science Students in WAEC ...

Is biology compulsory in Waec?

List of the compulsory subjects for Science students in WAEC: General Mathematics. English Language. At least one of Physics, Chemistry and Biology.
List of the compulsory subjects for Science students in WAEC: General Mathematics. English Language. At least one of Physics, Chemistry and Biology.Apr 24, 2019

WAEC to stop amendment on certificates in 2017 - Punch Newspapers

Does Waec certificate carry date of birth?

WAEC to stop amendment on certificates in 2017. The West African Examinations Council says it will stop amending the date of birth and other entries on the certificate of candidates from January 1, 2017.

The Waec Grading System - Awajis

Is d7 a pass mark in Waec?

Under the new WAEC grading system, A1 is Excellent, B2 Very Good, B3 Good, C4, C5 and C6 are interpreted as Credit, D7 and D8 are interpreted as Pass, while F9 is Fail.
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NECO 2020 Registration Form, Exam Starting Date, Price Timetable ...

How much is NECO 2020?

NECO registration form 2020 price is Eleven Thousand , Three Hundred And Fifty Naira Only (N11,350) Nine Thousand, Eight Hundred And Fifty Naira Only (N9,850) following the reduction of JAMB UTME form price and NECO form price in 2018.
NECO registration form 2020 price is Eleven Thousand , Three Hundred And Fifty Naira Only (N11,350) Nine Thousand, Eight Hundred And Fifty Naira Only (N9,850) following the reduction of JAMB UTME form price and NECO form price in 2018.

Universities Accepting WAEC, NECO, NABTEB and GCE, How to ...

Can I use NECO GCE to enter university?

You can use WAEC GCE, NECO GCE, NABTEB GCE to gain admission into UNILAG. And any possible combination is acceptable by the university.
You can use WAEC GCE, NECO GCE, NABTEB GCE to gain admission into UNILAG. And any possible combination is acceptable by the university.Feb 5, 2020

Lists Of Universities To Study Abroad With WAEC - EASY ...

Can I use Waec GCE to study abroad?

Nigerian students wishing to study abroad with WAEC, NECO or GCE can apply for admission at Brandon University. As a Nigerian or Internationa student seeking admission to study abroad at Brandon University with WAEC can use the link below to apply.
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Is 21 too old to start university? : AskUK - Reddit

Is 21 too old for university?

21 isn't too old to start anything. Seriously though, who is going to be able to tell you are two years older. It's a none issue. It's probably a better time to start uni than an 18 year old in my opinion.
21 isn't too old to start anything. Seriously though, who is going to be able to tell you are two years older. It's a none issue. It's probably a better time to start uni than an 18 year old in my opinion.

TEACHERS PLATFORM: Why do students forget what we teach ...

Why do I forget when I study?

The most common reason why students forget is because the material is under learned. To remember something, it must first be learned, that is, stored in long-term memory. If you don't do what is necessary to get information into your long-term memory, you have under learned the material and forgetting is normal.

Assessment - New Grade Points for 2011-12 - Grade Points

Is b2 a good grade?

Throughout the University, grade A means excellent, grade B means very good, and so on. ... For example, grade B is divided into three bands: B1 means a high B, B2 means a medium B, and B3 means a low B.
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Reasons Why NECO Result is Accepted for Study in Canada ...

Does Canada accept NECO?

Reasons Why NECO Result is Accepted for Study in Canada. You sure read that correctly, NECO result is accepted for study in Canada if you did't know. And if you already know this, you definitely would have been surprised when you read the caption since NECO is a Nigerian examination.
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WAEC, NECO and NABTEB: What you need to know about Nigerian ...

Is NECO and WAEC the same?

National Examinations Council, otherwise known as NECO, is a national examination body established by the Nigerian government to conduct examinations. Unlike WAEC, NECO is a national examination body vested with the responsibility to oversee specified exams only in Nigeria.
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