+234 810-8515-604examplaza@gmail.com
+234 814-7515-098+234 813 827-4394
Notice Our 2020 NECO Expo Subscription for answers supply ends by Sunday Night. Note: we don't accept calls.

CHOOSE WHAT YOU NEED FROM US?



WAEC EXPO IN CHEMISTRY



2020/2021 WAEC/NECO Answers: 2020 GCE WAEC chemistry practical answers


2020/2021 WAEC/NECO Answers: 2020 GCE WAEC chemistry practical answers




ECONOMICS-OBj
1-10: CABABCBBCC
11-20: CDBAABCCCA
21-30: CCADBAACDB
31-40: BBABDBABAC
41-50: CCABCBCBCC

This is actually the 2019 GCE WAEC chemistry practical answers Answers as questions sent to our subscribers on WHATSAPP, if you are looking for 2020 WAEC/NECO Answers midnight before the exam, try contacting us.



CHEMISTRY-PRACTICAL
(2ai)
TEST: E + H2O(stirred)
INFERENCE: E is a mixture of salts

(2aii)
TEST: Residue
INFERENCE: Gas evolved is CO2 from HCO3- or CO3²-

(2aiii)
TEST: residue + HNO3 + H2O
INFERENCE : CO2 gas is evolved from HCO3-or CO3²-

(2aiv)
OBSERVATION: Blue gelatinous ppt soluble in drops. Soluble in excess to give deep blue ppt.
INFERENCE: Cu2+ present
Cu2+ confirmed

(2bi)
INFERENCE : Zn²+, pb²+, Al³+ present
Zn²+, pb²+ present

(2bii)
OBSERVATION: White gelatinous ppt soluble in excess Nh3 solution
INFERENCE: Zn²+, pb²+, Al³+
Zn²+ confirmed

(2biii)
TEST: Portion of filtrate of Ba(NO3)2 + HCL
INFERENCE: SO4²- or CO3²- present.
SO4²- confirmed.

=====================================

(1a)
VA=11.30cm³
CA=5.3gldm³
VB=25.0cm³
CB=Ygldm³
HCl(aq)+NaOH(aq)----->NaCl(aq)+H²O(i)
For acid NA; NB =1;1

(1ai)
Conc of A in moldm-³
=conc of A in gldm-³/molar mass in glmol
=5.3/36.5
HCl=>1+35.5=36.5glmole
=0.145moldm-³

CAVA/CBVB=NA/NB
0.145*11.30/CB*25.0=1/1
1.6385=25CB
CB=1.6385/25
CB=0.06554moldm³

(1aii)
Conc of B in moldm-³=
Conc of A in gldm-³/molar mass in glmol

Molar mass of NaOH
=Na+O+ H
=23+16+1
=40glmol .
0.066=y/40
y=0.066*40
y=2.64

(1aiii)
HCl+NaOH----->NaCl+H²O
1mole of HCl give 1mole NaCl

1.6385mole
n=CV
=0.145*11.30
=1.6385mole
No of mole =mass/molar mass
1.6385=mass/58.5
Molar mass of NaCl=58.5glmole
Mass of NaCl =58.5*16.385
=95.85g

(1bi)
The indicator used is methyl orange because the titration is between the strong acid and strong base

(1bii)
Orange color would be shown at the end point .
=====================================

(3a)
-Glucose-
The most important monosaccharide is glucose, the body’s preferred energy source. Glucose is also called blood sugar, as it circulates in the blood, and relies on the enzymes glucokinase or hexokinase to initiate metabolism.

-Sucrose-
Sucrose is commonly known as table sugar, and is obtained from sugar cane or sugar beets. Fruits and vegetables also naturally contain sucrose.

(3bi)
(i)potassium iodide
(ii)throsulphate

(3bii)
Starch indicator

(3biii)
(i)before end point ----> dark color
(ii)at the end point ----> colourless

(3c)
(i)soda lime is preferred because it does not attack rubber nor dry.
(ii)it is not deliquescent
=====================================


How do I get 2020 GCE WAEC chemistry practical answers BEFORE THE EXAM?
. You can get 2020/2020 Exam answers directly from examplaza.com, visit HERE NOW

Frequently Asked Qestions and Answers

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.
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.Jul 31, 2019

WAEC 2020/2021 Registration Form: See WAEC Starting & Closing ...

Is Waec form out for 2020?

If you want to apply for 2020/2021 WAEC registration form, note that WAEC 2020 registration form is already out. The form was released in November 2019. Students who wises to apply for this form, are expected to do so as fast as possible.
If you want to apply for 2020/2021 WAEC registration form, note that WAEC 2020 registration form is already out. The form was released in November 2019. Students who wises to apply for this form, are expected to do so as fast as possible.Dec 14, 2019

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.

How do people cheat on online proctored exams? - Quora

How can I cheat online proctored exams?

There are many ways that test-takers can cheat on an online proctored exam. They may sneak in their cellphones, have hidden cheat sheets, use electronic gadgets such as a digital watch or a Bluetooth earpiece, or have a fake identity, etc.

Is my WAEC Result good enough to Study Abroad Nigerian Students

Can I use my Waec result to study abroad?

Students with good WAEC result can enroll into universities abroad and most institutions in abroad offers admissions to students with WAEC results as long as they agree to undertake a foundation course.
Students with good WAEC result can enroll into universities abroad and most institutions in abroad offers admissions to students with WAEC results as long as they agree to undertake a foundation course.Nov 21, 2017

Age limit as dilemma for admission seekers | The Guardian Nigeria ...

What is the age limit for Waec?

Although the 16 years age limit requirement for university admission has no legal backing, it has become the gold standard for some universities in Nigeria, which had in their post-Unified Tertiary Matriculation Examination (UTME) advertorial stated that ?candidates, who will not be 16 years of age by October 31, 2018, ...
16 years,Although the 16 years age limit requirement for university admission has no legal backing, it has become the gold standard for some universities in Nigeria, which had in their post-Unified Tertiary Matriculation Examination (UTME) advertorial stated that ?candidates, who will not be 16 years of age by October 31, 2018, ...Oct 4, 2018

List of Universities in Germany that Accept WAEC Results | GH ...

Is Wassce accepted in Germany?

The West African Examination Certificate Examination (WASSCE) is an examination that is administered by the West African Examination Council (WAEC). The examination is administered yearly. ... Most universities in Germany accepts WAEC results from West African students.
waec expo runs is real. WAEC Answers, NECO ANSWERS and GCE answers comes a night before exam or Hours before exam

Check WAEC GCE Result Without Scratch Card - Here

Can I check my Waec result without scratch card?

Lets go straight to truth and it is that ? checking waec result without scratch card is never possible if your motive is to: check through a computer. check your result via waec result checking website (online) print out a copy of your result slip.

GCE ? MULTINATIONAL EDUCATIONAL CONSULTING

What is GCE exam?

What is GCE? It is General Certificate Examination. The GCE as it usually called by many people are two based on the bodies that conduct them. There is the West African Senior School Certificate Examination (WASSCE) for school private candidates in November/December.
What is GCE? It is General Certificate Examination. The GCE as it usually called by many people are two based on the bodies that conduct them. There is the West African Senior School Certificate Examination (WASSCE) for school private candidates in November/December.

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.
waec expo runs is real. WAEC Answers, NECO ANSWERS and GCE answers comes a night before exam or Hours before exam

2020 WAEC GCE Registration Form | Instructions & Guidelines

How much is Waec 2019?

How to Apply for the 2019 WAEC GCE. Candidates arc expected to pay a registration fee of Thirteen Thousand, Nine Hundred and Fifty Naira (N13,950) only, at branches of any of the following banks or any accredited agent and obtain the Registration PIN and Information VCD: Access Bank Plc.
How to Apply for the 2019 WAEC GCE. Candidates arc expected to pay a registration fee of Thirteen Thousand, Nine Hundred and Fifty Naira (N13,950) only, at branches of any of the following banks or any accredited agent and obtain the Registration PIN and Information VCD: Access Bank Plc.

West African Senior School Certificate Examination - Wikipedia

What Mark is a1 in Waec?

waec expo runs is real. WAEC Answers, NECO ANSWERS and GCE answers comes a night before exam or Hours before exam

WAEC New Grading System : See What Each WAEC Grade Means

What is d7 Waec grade?

Below is a list showing how each grade is interpreted in WAEC Result....How WAEC Result is Graded.GRADENUMERIC VALUEINTERPRETATIONC66CREDITD77PASSE88PASSF99FAIL5 more rows

2020 WAEC GCE Registration Form | Instructions & Guidelines

How much is Waec 2020?

How to Apply for the 2020 WAEC GCE. Candidates arc expected to pay a registration fee of Thirteen Thousand, Nine Hundred and Fifty Naira (N13,950) only, at branches of any of the following banks or any accredited agent and obtain the Registration PIN and Information VCD: Access Bank Plc.
waec expo runs is real. WAEC Answers, NECO ANSWERS and GCE answers comes a night before exam or Hours before exam

#3 Legit Ways On How To Get 2020 Waec Expo Runs Answers

How can I get expo for Waec?

To get your legit 2020 waec expo runs answers, kindly; Visit examplaza.com Waec Expo Answers Page.Choose Your Package or.Send a text of this format ?Helo! I want to pay for my 2020 waec expo answers?.Send to 08143977661.

GCE Harder than WAEC? Differences To Expect - School Contents

Is GCE harder than Waec?

WAEC internal can be easier because you're have been well prepared for the papers most recently (SS1 to 3). People usually write GCE while they'd abandoned books for months - if not years. This may make it more difficult to pass. There are other reasons WAEC internal could be more convenient as detailed in this post.

Is NECO Certificate Accepted Outside Nigeria? (Read Here ...

Can Neco be used to study abroad?

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.
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.

WAEC Grading System for Examinations. | Download Table

What is a distinction in Waec?

... is externally organized and graded by the West Africa Examinations Council (WAEC), which clas- sifies candidates who obtain BECE Aggregate 6 to 12 as "distinction" or "good" students, Aggregate 13 to 24 achiev- ers as "average," and Aggregate 25 and above achievers as "weak" students (Asihene, 2009;Dorleku, 2013; ...
... is externally organized and graded by the West Africa Examinations Council (WAEC), which clas- sifies candidates who obtain BECE Aggregate 6 to 12 as "distinction" or "good" students, Aggregate 13 to 24 achiev- ers as "average," and Aggregate 25 and above achievers as "weak" students (Asihene, 2009;Dorleku, 2013; ...

How To Learn Anything 10x Faster - YouTube

How can I learn 10x faster?

WAEC Timetable for May/June Examinations 2020 - MySchoolGist

What is the date for Waec 2020?

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.
waec expo runs is real. WAEC Answers, NECO ANSWERS and GCE answers comes a night before exam or Hours before exam

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.
waec expo runs is real. WAEC Answers, NECO ANSWERS and GCE answers comes a night before exam or Hours before exam

West African Senior School Certificate Examination - Wikipedia

Which month is Waec?

This examination is offered during summer (April to May), and the results are available by August.
This examination is offered during summer (April to May), and the results are available by August.

Which Is More Easier To Pass Between WAEC, NECO, & NABTEB ...

Is Neco harder than Waec?

NECO seems less difficult compared to WAEC but not also easy to make A's.
NECO seems less difficult compared to WAEC but not also easy to make A's.Mar 15, 2018

Why you need to present your WAEC result at the embassy for ...

Is GCE accepted abroad?

For any certificate you seek abroad, you need your high school results. ... The National Examinations Council (NECO) certificate and the General Certificate of Education (GCE) are also accepted at the embassy but in rare occasions. However, your future school may not.
waec expo runs is real. WAEC Answers, NECO ANSWERS and GCE answers comes a night before exam or Hours before exam

WAEC Grading System & Meaning | A, B, C, D, E & F Interpretations

Is e8 a pass mark in Waec?

B3 is B (Very Good), C4 is C (Good), C5 and C6 are (Credit), D7 and E8 are E (Pass) and F9 is F (Fail).
B3 is B (Very Good), C4 is C (Good), C5 and C6 are (Credit), D7 and E8 are E (Pass) and F9 is F (Fail).Mar 3, 2020

We released SSCE results in 43 days ? NECO ? Punch Newspapers

How long does it take NECO result to be out?

We released SSCE results in 43 days ? NECO. The National Examinations Council has said it released the last Senior Secondary Certificate Examination results in 43 days.
waec expo runs is real. WAEC Answers, NECO ANSWERS and GCE answers comes a night before exam or Hours before exam

Why Waec Gce is Far better than Neco Gce - WAEC GCE

Is Neco better than GCE?

Why Waec Gce is Far better than Neco Gce. ... 2: Grading: The marking scheme of Neco is totally different from that of Waec Gce and mostly students prefer writing Waec gce than that of Neco , Have you heard about C Parallel slogan, Student now call some board Exam Parallel Examination.
Why Waec Gce is Far better than Neco Gce. ... 2: Grading: The marking scheme of Neco is totally different from that of Waec Gce and mostly students prefer writing Waec gce than that of Neco , Have you heard about C Parallel slogan, Student now call some board Exam Parallel Examination.May 13, 2013

HOW TO PASS ANY TEST WITHOUT STUDYING - YouTube

How can I get full marks in exam without studying?

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.
waec expo runs is real. WAEC Answers, NECO ANSWERS and GCE answers comes a night before exam or Hours before exam

Reasons Why NECO Result is Accepted for Study in Canada ...

Is Neco accepted in Canada?

Obtain N300,000 Cash Grant for your Education Now. 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.
Obtain N300,000 Cash Grant for your Education Now. 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.Jul 31, 2019
Jackson Tonye said: my name is Jackson Tonye I used expodaddy for Jamb last year, I scored 356... view all reviews