Exam

The electronic configuration of an element is 1S2 2S2 2P6 3S2 3P3. How many unpaired electrons are there in the element?

Which of the following can be obtained by fractional distillation? 

Duralumin consists of aluminum, copper?

An example of a polysaccharide is?

8g of CH4 occupies 11.2 at S.T.P. What volume would 22g of CH3CH2CH3 occupy under the same condition?

The best treatment for a student who accidentally poured conc tetraoxosulphate(vi) on his skin in the laboratory is to wash his skin with?

Which of the gas laws does this graph illustrate?

What are the possible oxidation numbers of an element if its atomic number is 17?

What process would coal undergo to give coal gas, coal tar, ammoniacal liquor and coke?

Liquid black soap is made by boiling palm oil with liquid extract of ash. The function of the ash is to provide the ?

When water drops are added to calcium carbide in a container and the gas produced is passed through a jet and lighted, the resultant flame is called an?

Which of the following substances is a mixture?

If the quantity of oxygen occupying 2.76L container at a pressure of 0.825 atm and 300k is reduced by one-half, what is the pressure exerted by the remaining gas?

Four elements P, Q, R and S have atomic numbers of 4, 10, 12 and 14 respectively. Which of these elements is noble gas? 

The products of the thermal decomposition of ammonium trioxonitrate(v) are?

How many valence electrons are contained in the element 1531P?

The number of molecules of Carbon(iv)Oxide produced when 10.0g of CaCO3 is treated with 0.2dm3 of 1 Mole of HCL in the equation
CaCO3 + 2HCL ⇒  CaCl2  + H2 O + CO2  , is ?

The volume occupied by 1.58g of a gas at S.T.P is 500cm3. What is the relative molecular mass of the gas?  [ G.M.V at S.T.P = 22.4dm23 ]

Which of the following gases will rekindle a brightly splint?

The shape of ammonia molecule is?

A few drop of conc HCL are added to about 10cm3 of a solution of PH 3.4. The PH of the resulting mixture is?

Chromatography is used to separate components of mixture which differ in their rates of ?

Deliquescent substances are also?

Helium is used in observation of ballons because it is?

32g of anhydrous copper(ii)tetraoxosulphate(vi) dissolved in 1dm3 of water generated 13.0kj of heat. The heat solution is?

A gaseous metallic chloride MCl consists of 20.22% of M by mass. The formula of the chloride is?
[ M = 27, Cl = 35.5]

What quantity of electricity will liberate 0.125 mole of oxygen molecules during the electrolysis of dilute sodium chloride solution?

Which of the following types of bonding does not involve the formation of new substances?

An organic compound that does not undergo a reaction with both hydrogen cyanide and hydroxylamine can be?

The substance often used for vulcanization of rubber is?

The chlorinated alkane often used industrially to remove grease is?

What mass of water is produced when 8.0g of hydrogen reacts with excess oxygen?

Proteins in acid solution undergo?

The general formula for the Alkanals is?

When cathode rays are deflected onto the electrode of an electrometer, the instrument becomes?

When a solid substance disappears completely as a gas on heating, the substance is said to have undergone?

An electron can be added to a halogen atom to form a halide ion with?

Aluminum hydroxide is used in the dyeing industry as a?

The most important element on the earth’s crust is?

To obtain pure carbon(ii)oxide from its mixture with carbon(iv)oxide, the mixture should be?

A constitution is a legal document _________

A government in which control of ultimate power is by a few who rule in their selfish interest is classified as _________

The judicial organ of government is the body which _________

Which of the following was not established by the 1979 Nigerian constitution ?

Rates are generally collected in Nigeria by ________

In a democracy, sovereignty is in _________

Which of the following is a good example of a confederal state?

A bill that applies to the whole population and is intended to promote the general welfare is called _________

Fascism developed in________

The theory of separation of powers was first time clearly formulated by __________

A system of government in which power derives from total control of the instruments of force is called ___________

The British Government revoked the charter of the Royal Niger Company and took over the direct administration of Nigeria in _________

The Fundamental Objectives and Directive Principles of State Policy in the 1979 constitution do not include _________

The founder of the Universal Negro Improvement Association was ________

A characteristic feature of communism is __________

Africans were first elected to the legislative council in British West Africa in _________

When a state is subject to no other authority, it is said to be _________

While pressure groups aim at influencing government decisions, the primary aim of political parties is to ______

In the tradition, Hausa-Fulani political system, political authority was vested in the ___________

Southern Nigeria was divided into Eastern and Western provinces for administrative purposes in _________

Within the United Nations, the veto power is exercised in ______

A set of internalized norms which guides political action is called ________

A condition for judicial independence is the appointment of judges by the __________

Which of the following is not associated with local government elections?

Warrant Chiefs were appointed to __________

The application of the rule of law may be constrained by ________

The highest court in Nigeria before 1963 was the _________

A feature unique to General Murtala Muhammed’s Supreme Military Council as compared to that of General Yakubu Gowon was the _________ 

In the First Republic, Nigeria was very reluctant to have meaningful interaction with ________

The Gulf War of 1990 is an indication that the U. N. O. is unable to _______

The simple plurality electoral system is often criticized because _________

Which of the following was the last to win independence from colonial rule ?

Nigeria’s non-aligned policy means that she will _________

The charter of the United Nations was drawn up in ________

The idea of making the civil service permanent, neutral and anonymous is to _________

The delineation of constituencies is a major duty of the __________

A meeting of the legislature is usually brought to an end with __________

The economic basis of feudalism is __________

NEPAD was adopted during the OAU summit held in _________

The Premier of Western Region immediately after independence was _________

Evaluate (212)3 – (121)3 + (222)3

Factorise (4a + 3) 2 – (3a – 2)2

Find all median of the numbers 89, 141, 130, 161, 120, 131, 131, 100, 108 and 119 

Find all real number x which satisfy the inequality 13 (x + 1) – 1 > 15(x + 4) 

Express each number in 0.02174×1.20470.023789 to two significant figures and then evaluate

Four boys and ten girls can cut a field first in 5 hours. If the boys work at 54 the rate at which the girls work, how many boys will be needed to cut the field in 3 hours? 

What is the circumference of latitude 0oS if R is the radius of the earth? 

A room is 12m long, 9m wide and 8m high. Find the cosine of the angle which a diagonal of the room makes with the floor of the room 

The goals scored by 40 football teams from three league  divisions are recorded below
No of goals 0  1  2  3  4  5  6
Frequency 4  3  15  16  1  0  1
What is the total number of goals scored by all the teams?

In a class of 150 students, the sector in a pie chart representing the students offering physics has angle 12o. How many students are offering physics? 

If log102 = 0.3010 and log103 = 0.4771, evaluate log104.5 without using the logarithm tables.

Simplify 324−4x22x+18 

In preparing rice cutlets, a cook used 75g of rice, 40g of margarine, 105g of meat and 20g of bread crumbs. Find the angle of the sector which represent meat in a pie chart? 

The angle of a sector of a circle radius 10.5 cm is 48o. Calculate the perimeter of the sector.

What is the product of 275, (3)−3 and (15)−1?

A crate of soft drinks contains 10 bottle of Coca-Cola 8 of Fanta and 6 of Sprite. If one bottle is selected at random, what is the probability that it is Not a Coca-Cola bottle? 

In this fiqure, PQ = PR = PS and SRT = 68o. Find QPS 

Find the gradient of the line passing through the points (-2, 0) and (0, 4) 

Find the equation of the line through the points (5, 7) parallel to the line 7x + 5y = 12.

If N225.00 yields N27.00 in x years simple interest at the rate of 4% per annum, find x. 

 Calculate the standard deviation of the following data: 7, 8, 9, 10, 11, 12, 13 

A number is selected at random between 20 and 30, both numbers inclusive. Find the probability that the number is a prime. 

The equation of the line in the graph is 

Express the product of 0.0014 and 0.011 in standard form 

A school boy lying on the ground 30m away from the foot of a water tank towel observes that the angle of elevation of the top of the tank is 60o. Calculate the height of the tank.

Find the simple interest rate percent annum at which N1000 accumulates to N1240 in 3 years. 

The pie chart shows the income of a civil servant in month. If his monthly income is N6,000. Find his monthly basic salary. 

If x is positive real number, find the range of values for which 13x + 12 > 14x

Find the value of x if 2x+2 = 1x−2 

A binary operation x is defined by a x b = ab. If a x 2 = 2 – a, find the possible values of a?

The chord ST of a circle is equal to the radius r of the circle. Find the length of arc ST

A sector of circle of radius 7.2cm which substends an angle of 300o at the centre is used to form a cone. What s the radius of the base of the cone?

A cylindrical tank has a capacity of 3080m3. What is the depth of the tank if the diameter of its base is 14m?

The acres for rice, pineapple, cassava, cocoa and palm oil in a certain district are given respectively as 2, 5, 3, 11 and 9. What is the angle of the sector of cassava in a pie chart? 

Three consecutive terms of a geometric progression are give as n – 2, n and n + 3. Find the common ratio 

In a class of 40 students, 32 offer mathematics, 24 offer physics and 4 offer neither mathematics nor physics. How many offer both mathematics and physics? 

The sum of the interior angle of pentagon is 6x + 6y. Find y in terms of x.

The mean age group of some students is 15years. When the age of a teacher, 45 years old, is added to the ages of the students, the mean of their ages become 18 years. Find the number of students in the group. 

A surveyor walks 500m up a hill which slopes at an angle of 30o. Calculate the vertical height through which he rises

Find the non-zero positive value of x which satisfies the equation 
[x10 1×1 01x] = 0