UNIBEN General Paper 2011/2012 Past Questions

If 12 and 9 are the atomic numbers of elements P and Q respectively, the inter atomic bond between these elements is

All the following statements are false about sodium chloride in the solid state except....

The abnormally high boiling point of water is due to

The rate of diffusion of a gas is inversely proportional to the square root of its density. This statement is synonymous with

The pressure of a given mass of gas is 30 mmHg. What will be the pressure it Newton/m"?

Calculate the volume of oxygen required to burn completely 20cm of carbon (II) oxide.

One mole of a substance contains the ......

Zn + Cu²⁺ → Zn²⁺ + Cu
From the reaction above, it can be deduced that....

These are factors affecting rate of chemical. reaction except...

The units of rate of chemical reaction is

Which of the following mixtures form producer gas?

What is the main use of the crucible in the laboratory?

Methane, ethane, propane, butane and pentane are the five simplest

When a system at equilibrium is disturbed, the equilibrium adjusts it self in such a way as to cancel out or annul the effect. This is

The reaction between KOH and No, produces water and....

Which of these methods is employed in the separation of hydrocarbons in petroleum

Points P and Q are respectively 24m north and 7m east of a point R. What is the bearing of Q from P to the nearest whole degree?

Factorize$ 35-2b-b^2$.

If 3log a + 5log a - 6log a = log 64, what is a?

What value of k makes the expression x² - 8x + k = 0 a perfect square?

A Headmaster contributes 7% of his income into a fund and his wife contributes 4% of her income. if the husband earns N5,500 per annum and the wife earns N4,000 per annum, find the sum of their annual contribution to the fund.

The population of a village is 5846. Express this number to three significant figures

Find the equation of a line with gradient-2 passing through the point (1,2).

If v varies directly as the square of x and inversely as y, and if v = 18 when x = 3 and y = 4. find v when x = 5 and y = 2.'

Divide the expression x³ + 7x² -x² by -1 + x²

The interior angle of a pentagon are 130°, 118°, 80°, 78° and x. Find the value of x.

In a regular pentagon ABCDE, AC intersects BD at F. Calculate CBD.

A chord is 5cm from the centre of a circle of diameter 26cm. Find the length of the chord.

A chord XY of a circle of radius 14cm Subtends an angle of 60° at the centre. Find the length of arc XY.

The locus of a point which is equidistant from two given fixed points is the....

The magnitude of the resultant of two equal vectors, each of magnitude K units and acting at right angle to each other is

An orange falls from a height of 20m. How long does it take to reach the ground?

A piece of stone weighs 80g in air; 50g when completely immersed in water, and 65 g in liquid Y. What is the relative density of Y?

If ST = 5m, the moment of the force of 10 N about S in the diagram below is ..........
[Diagraam]

A ball is projected so as to attain maximum range. Determine the angle with which the ball must be projected.

A toy car of mass 8kg initially at rest is accelerated at a rate of 2ms^-2 for 3 sees. The kinetic energy of the toy car is....

The two fixed points on a thermometer are 70cm apart. When the thermometer reads 63cm above the ice point, the temperature is....

One advantage of alcohol over mercury as a thermometric fluid is that

A closed organ pipe and an open organ pipe emit notes of the same pitch. The ratio of the length of the air column in the closed pipe to that of the open pipe is

The process by which protons are converted into helium atom with a tremendous release of energy is called...