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Monday, 17 April 2017

CRS x IRS (Essay & Objective) Waec 2017 Free Expo Answers

============================
Tuesday, 18th April, 2017
Christian Religious Studies 2 (Essay) 09.30am - 11.30am
Christian Religious Studies 1 (Objective) 11.30am - 12.30pm

Islamic Studies 2 (Essay) 09.30am - 11.30am
Islamic Studies 1 (Objective) 11.30am - 12.30pm
============================


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Chemistry (Essay & Objective) Waec 2017 Free Expo Answers

============================
Tuesday, 18th April, 2017

Chemistry 2 (Essay) 2.00pm - 4.00pm
Chemistry 1 (Objective) 4.00pm - 5.00pm
============================

THEORY
1ai)
an acid base indicator is a weak acid or weak base that exhibits a colour change as the concentration of hydrogen (H^+) or hydroxide (H^-) ions changes in an aqueous solution

1aii)
methyl-orange

1b)
i)oxidizing agent
ii)mixed anhydride

1c)
enthalpy of combustion is the heat evolved when one mole of a substance is completely burns in oxygen gas under standard conditions

1cii)
enthapy of combustion is always negetive since it involvs a rise in temperature and heat of reactants is greater than the heat of products

1d)
primary cell is a cell that cannot be re charged while secondary cell is a cell that can be recharged
==================




















4)



3ai)
Thermal cracking
3aii)
C4H8
3aiii)
(I) H H. H
| | |
H-C-C-C=C
| | | |
H H H H
and
(II) H H
| |
H-C-C=C-C-H
| | | |
H H H H
3aiv)
I-normal butene
II -But-2-ene
Ni
3av)
C4H8 +H2 -------> C4H10
250c
3b)
method
- rub the fat on a blank white paper
- pour Sudan (III) dye over the paper
-wash the paper under tap
Observation
- rubbing the fat on the paper produces a translucent color
-pouring sudan (III) will stain the blot red
Conclusion
- fat is present because sudan (III) can stain fat red


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



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Wednesday, 12 April 2017

English (Essay, Objective & Test of Orals) Waec 2017 Free Expo Answers

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Thursday, 13th April, 2017

English Language 2 (Essay) 09.30am - 11.30am
English Language 1 (Objective) 11.30am - 12.30pm
English Language 3 (Test of Orals) 2.00pm - 3.45pm
============================


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Eng-obj

1accabbcdba

11dcacccdbcc

21aacdabdcbc

31badbbdcbdb

41ccadabbdba

51baddaaaccc

61baaccdddcd

71acbdadbcac

SECTION A
Answer only one Question from here
1. Your father has just built a new house for the family. Write a letter to your elder brother who lives abroad describing the new house and the prestige it has accorded your family.
2. Write an article suitable for publication in a national newspaper, discussing two major problems facing your country and suggesting ways of solving them.
3. The electricity supply in your school has been irregular. As the Senior prefect, write a letter to the chairman of the parent-teacher Association (PTA) telling him about the effect of this on the school and the need to provide a stand-by generation for the school.
4. Your principal is due for retirement at the end of the academic year. As the senior prefect, write a speech which you would deliver to honor him/her at a send-off party
5. Write a story that end with the expression. At least, we arrived safety.

THEORY-PART
6a)
they went to play football
6b)
they went to hunt fr crabs which they sold for money
6c)
they were carried away by their activities
6d)he left behind all his catch he was forced by his parent
6e)
his Mather either floges him or reprimand him
6f)
i)metaphor
ii)he had caused trouble for which he would be punished
6g)
6hi)Adverbial clause
6hii)it modifies the verb screamed
6hi)Deter _prevent
6hii)Preserved _work
6hiii)Augment _ add to
6hiv)Ventured _ went
6hv)Concerned _ worried
===============================
7a)
i)they waste valuable time which they should have used to study
ii)it corrupts their minds and makes them immoral
iii)it makes them become criminals
7b)
i)parent should train their children well
ii)teachers should ensure that the children get the right skills and attitudes iii)the community should instill in the youth,their customs and values through role modelling

Enjoy 



Tuesday, 11 April 2017

Computer Studies Waec 2017 Free Expo Answers

============================
Wednesday, 12th April, 2017

Computer Studies 2 (Essay) 3.00pm - 4.00pm
Computer Studies 1 (Objective) 4.00pm - 5.00pm
============================

Please Please and please, Computers answers will never be posted for free, it's either you subscribe with your Airtel N500 or you forget it cos we've tried for you guys this few days so it's time you show us love too

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Answers loading (loading)

Government (Essay & Objective) Waec 2017 Free Expo Answers


============================
Wednesday, 12th April, 2017

Government 2 (Essay) 09.30am - 11.30am
Government 1 (Objective) 11.30am - 12.30pm
============================

Waec 2017 Government Questions And Answers Now Available!!

ATTENTION:- NOTE THAT SUBSCRIBERS GETS ANSWERS BEFORE THE EXAM STARTS..
ALWAYS SUBSCRIBE IF YOU NEED FAst and early runz
ADIGUN DAMILARE
(Based On Logistics)
GOVERNMENT OBJ
Buhari Government OBJ:
1-10: CCCDACCBDD
11-20: BCAAACBBAA
21-30: BBBAACAAAD
31-40: DACDDBABBB
41-50: DCBDACBBBD
LOADING…
********************
SECTION A ANS (3)
********************
1a)
legitimate government is a government generally acknowledged as being in control of a nation and deserving formal recognition, which is symbolized by the exchange of diplomats between that government and the governments of other countries.
1b)
i)good leadership
ii)good government
iii)free and fair periodic
iv)spread political participation
===============
2a)
Rights can be defined as those inalienable (natural) rights and privileges enjoyed by the citizens of a given state, which are usually stated in the constitution of the country
2b)
i)the level of economic and social conditions of people also affects the enjoyment of the right
ii)the breach by a person as adjudge by a court of law may restrict the right and liberties
iii)if the health of an individual will threaten the whole society he may be restricted to an area(hospital)
iv)person with disabilities may be confired for their own advantage and the good society
===============
3a)
DE JURE ONE-PARTY SYSTEM: only one political party is legally and constitutionally allowed to operate.
While DE FACTO ONE-PARTY SYSTEM: It exists where there is no legal or constitutional prohibition on other parties to exist rather the competing political parties are gradually eliminated from functioning through the electoral processes.
3b)
i)Ensures a peaceful change of power: An advantage of a multi-party system is that it allows for a peaceful change of government.
ii)It Caters for the minority: Since there are so many parties are formed in a multi-party system, the chances are that many parties would exist to choose from.
iii)It Allows for opposition: Another advantage of the operation of a multi-party system is that it allows opposition parties to exist.
iv)The existence of many political parties allows for people to join those parties and as they do so they engage in political activism, thereby allowing the scope of political participation is enlarged.
================
4a)
simple Majority system is a system of voting requirement of more than half of all ballots cast
4b)
i)Representatives can get elected with small amounts of public support, as the size of the winning margin is irrelevant:
ii)It encourages tactical voting, as voters often vote not for the candidate they most prefer, but against the candidate they most dislike.
iii)It is regarded as wasteful, as votes cast in a constituency for losing candidates, or for the winning candidate above the level they need to win that seat, count for nothing.
iv)It can severely restrict voter choice. Parties are not homogenous and do not speak with one unified voice. Parties are more coalitions of many different viewpoints.
==============
5)
i)provision of capital.
ii)employment of qualified personnel
iii)improved conditions of service
iv)political autonomy
v)probity and accountabily
===============
***********************
SECTION B ANS (2) ONLY
***********************
6)
i)they checked the excess of the king makers In the area of dethronement of an oba.
ii)they perform rituals on behalf of the kingdom
iii)they mediated between the oba and the kingmakers whenever there was a disagreement.
iv)they serve as link between the people and the ancestors
v)the society possess some judicial powers and was involved in policy making.
==================
7a)
Crown Colony can be described as the system of administration that was adopted by the British in the administration of their overseas territories.
7b)
i)Approval of new constitutions: For a new constitution to be drafted and implemented in the colonies, the secretary of state m!ust have given his approval.
ii)Received petitions: The Secretary of State received the complaints and petitions from the local people.
iii)Supervision of Governors; It was the duty of the Secretary of State to supervise the work of the Governors who resided in the British colonies.
iv)Approval of annual budget; The budgets for the colonies were prepared by the Executive Councils of the colonies, but before the budget could be implemented, it had to be approved by the Secretary of State for the colonies.
=================
8)
i)herbert macaulary was the father of nationalism due to his various contribution to the establishment of the first political part- NNDD
ii)he also established the first newspaper which helps to disseminate information of the political party there by fastering political development
iii)he plays a pirotal role in the eventual indenpendence of nigeria through his struggle and deactivities for political liberation
iv)he founded the first nationalist political party that called for independence – NCNC and the first secretary was nnamdi azikwe
v)he laid the foundation for political framewwork that attaimed nigeria independence
==================
9a)
foreign policy Plan of action adopted by one nation in regards to its diplomatic dealings with other countries. Foreign policies are established as a systematic way to deal with issues that may arise with other countries.
9b)
i)Size: In the first place the size of a state’s territory as well as it’s population greatly influences its foreign policy.
ii)Geography: The geography of a country, including its fertility, climate, location in relation to their land masses, and water-ways etc. also influence the country’s foreign policy.
iii)Culture and History: The cultural and historical traditions of a country also deeply influence the foreign policy.
iv)Economic Development: The stage of economic development which a country has attained also has its impact on its foreign policy.
==============
10i)
nigera played a central role in ecowas efforts to end the civil war in liberia
10ii)
nigeria has taken lead in articulating the veiws of developing nations on the need for modification of the existing international economic order
10iii)
nigeria contributed bulk of ECOWAS peacekeeping forces
10iv)
nigeria also founded regional cooperative efforts in west africa functioning as a standard bearor for ECOMOG and ECOWAS economic and military
10v)
nigeria played a role financially to the smooth organization of ECOWAS
=============
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Chemistry Practical Waec 2017 Free Expo Answers




Chemistry Practical Waec 2017 Free Expo Answers

============================
Tuesday, 11th April, 2017
Chemistry 3 (Practical) (Alternative A) 09.30am - 11.30am (1st Set)

Chemistry 3 (Practical) (Alternative A) 12.00pm - 2.00pm (2nd Set)
============================




NOTE THAT ^ MEANS Raise to
power.
Pls Draw Your Table As Usual And
Input The Following:-
Volume of pipette=25.00cm^3
indicator used- Methyl orange
colour change at end point-yellow to orange/purple
Note Use Your School End Point.
Tabulate


1)
Tabulate
Burette reading|Final burette reading
(cm^3)|Initial burette reading (cm^3)|
Volume of acid used(cm^3)|
Rough- 24.10,0.00,24.10
First- 23.80, 0.00, 23.80
Second- 23.75, 0.00, 23.70
Third- 23.75, 0.00, 23.75
Average volume of A used = 23.80 + 23.70 + 23.75cm^3/3 
=23.75cm^3
1bi)
CAVA/CcVc=2/1
Cc=CAVA/2VC
=0.100*23.75Moldm^-3/2*25.00
=0.0475moldm^-3
amount of A used = 0.100x VA/1000=0.100*23.75/1000 =0.00237
2moles Of A = 1mole of C
0.002375mol of A = 0.002375mol/2
100cm^3 of C contain 0.00237*100mol/2*25 =0
1000cm3ofCcontained0.002375x1000mol

2x25

=0.0475mol

concentration of C in moldm-3 =0.0475moldm-3
1bii)
Molar mass of Bing mol-1:

Molar mass of Na2CO3.yH2O=mass concentration of Bingdm-3

molar concentration of Binmoldm-3

=13.6gdm-3

0.0475moldm-3

=286gmol-1

1biii)
Molar mass of Na2CO3 =[(2×23)+12+(16×3)]=106gmol-1

Mass of anhydrous Na2CO3=106x0.0475gdm-3

=5.035gdm-3

Mass of water=13.6-5.035gdm-3

=8.565gdm-3

Mass of Na2CO3 =Molar mass of Na2CO3

Mass of water y×Molar mass of water
5.035=106

8.565 18y

y =106x8.565

5.035x18

=10


1b 

CaVa Na 
_____ =____
CcVc Nc

CaVa 1
______ = ___
CcVc 2
Cc= CaVa
_____
2Vc 

= 0.100 × 23.75 mol dm^3
________________
2 × 25.00
= 0.0475 mol dm^3

Conc. Of C in mol dm^-3 = 0.0475


(a)(i)Fn+H2O,then
filter



White residue and blue
filtrate was observed


Fn is a mixture of
soluble and insoluble
salts

(ii)Filtrate+NaOH(aq)in
drops,then in excess


A Blue gelatinous
precipitate which is
insoluble in excess


NaOH(aq)was formed
Cu2+present

(iii)Filtrate+NH3(aq)in
drops,then in excess


A pale blue gelatinous
precipitate was
formed.The precipitate
dissolves or is soluble
in excess NH3(aq)to give
a deep blue solution


Cu2+confirmed

(iv)Filtrate+dil.HNO3
+AgNO3(aq)
+NH3(aq)in excess
No Visible Reaction
White Precipitate
formed
Precipitate dissolved in
excess NH3(aq)


Cl-present
Cl-confirmed
(b)(i)First Portion Of
residue+NaOH(aq)in
drops,then in excess
White Powdery
precipitate which is
insoluble in excess
NaOH(aq)


Ca2+present
(ii)Second Portion Of
residue+dil.HCl


Effervescence/bubbles;
colourless,odourless
gas evolved.Gasturns
lime water milky and
turns damp blue litmus
paper red.


GasisCO2
CO3
2-orHCO3
-present


(a)(i)+H2O,then
filter



White residue and blue
filtrate was observed


Fn is a mixture of
soluble and insoluble
salts

(ii)Filtrate+NaOH(aq)in
drops,then in excess


A Blue gelatinous
precipitate which is
insoluble in excess


NaOH(aq)was formed
Cu2+present

(iii)Filtrate+NH3(aq)in
drops,then in excess


A pale blue gelatinous
precipitate was
formed.The precipitate
dissolves or is soluble
in excess NH3(aq)to give
a deep blue solution


Cu2+confirmed

(iv)Filtrate+dil.HNO3
+AgNO3(aq)
+NH3(aq)in excess
No Visible Reaction
White Precipitate
formed
Precipitate dissolved in
excess NH3(aq)


Cl-present
Cl-confirmed
(b)(i)First Portion Of
residue+NaOH(aq)in
drops,then in excess
White Powdery
precipitate which is
insoluble in excess
NaOH(aq)


Ca2+present
(ii)Second Portion Of
residue+dil.HCl


Effervescence/bubbles;
colourless,odourless
gas evolved.Gasturns
lime water milky and
turns damp blue litmus
paper red.


GasisCO2
CO3
2-orHCO3
-present

(2a)(i)Fn+H2O,then
filter



White residue and blue
filtrate was observed


Fn is a mixture of
soluble and insoluble
salts

(2b)Filtrate+NaOH(aq)in
drops,then in excess


A Blue gelatinous
precipitate which is
insoluble in excess


NaOH(aq)was formed
Cu2+present

(2bii)Filtrate+NH3(aq)in
drops,then in excess


A pale blue gelatinous
precipitate was
formed.The precipitate
dissolves or is soluble
in excess NH3(aq)to give
a deep blue solution


Cu2+confirmed

(2c)Filtrate+dil.HNO3
+AgNO3(aq)
+NH3(aq)in excess
No Visible Reaction
White Precipitate
formed
Precipitate dissolved in
excess NH3(aq)


Cl-present
Cl-confirmed

(2di)(i)First Portion Of
residue+NaOH(aq)in
drops,then in excess
White Powdery
precipitate which is
insoluble in excess
NaOH(aq)


Ca2+present

(2dii)Second Portion Of
residue+dil.HCl


Effervescence/bubbles;
colourless,odourless
gas evolved.Gasturns
lime water milky and
turns damp blue litmus
paper red.


GasisCO2
CO3
2-orHCO3
-present


3i)Lime Juice is acidic in Nature and the colour of methyl orange in acidic medium is red

3ii)Iron(II)Chloride will be reduced to Iron(II) with the yellow deposit of sulphur

3c. Sulfur dioxide gas (SO2) is bubbled through a solution of acidified potassium permanganate (KMnO4). An oxidation-reduction reaction occurs.

Potassium permanganate has a purple colour. Sulphur dioxide is a reducing agent. Potassium permanganate is an oxidizing agent. When sulphur dioxide reacts with potassium permanganate the solution decolourizes. Color changes from Purple to colorless

3iv)Addition of ethanoic acid to k2lo3 results to the liberation of a colourless or odourless gas co2 Which turns lime water milky

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