UNIBEN General Paper 2012/2013 Past Questions

Calculate Sin(A+B) if SinA = ³/⁵ and CosB= ⁵/₁₃ where A and B are acute

find tan x given that tan(x+45)=2

if $$\frac{x+7}{(x+3)(x+4)} = \frac{m}{x+3} + \frac{n}{x-4}$$
What is 3n-4m?

$$\frac{5x+12}{(x-2)(x-3)}$$ in partial fraction

evaluate ∫⁶₁(2x+3)dx

find the co-ordinate of the minimum point for the equation y=4t²-40t+300

find the variance of the numbers K,K+,1,K+2,

find the positive value of x if the standard deviation of the number 1,x+1,2x+1 is 6

what is the order of evolution of the following animals A-Rattus rattus
B-Agama agama
C-Bufo regularis
D. Tilapia zilli

which of the following is likely to have a higher concentration of mitochondria?

which of these diseases is not caused by virus?

metabolic production of urea is carried out in the

if a nursing mother is not producing enough milk, her hormonal system is probably deficient in

nervous control differs from hormonal control in that the former

the two key cations involved in the action potential of nervous transmissions are

a boy who is fond of swimming in a pond finds himself passing urine with traces of blood. he is likely to have contacted

the presence of a large number of mitochondria in a cell indicates that

if the cerebellum of a person is slightly damaged, which of the following will be impaired?

herbs differs from shrubs because they

which of the following represents the evolutionary sequence in these plants?
I. mango plants
ii. mosses
iii. spirogyra
1v. ferns
v. whistling pine

by which process in man does oxygen pass from alveoli of the lungs into the blood?

the aspects of growth in living organisms include all the following processes except

which of the excretory product is not found in mammals

which of the following organism is a producer

changes in energy floe between organisms in a habitat can be represented by action

important abiotic factors which affect all plant and animals in the habitat are

which of the following factors may not affect living organisms in an aquatic habitat?

which of the following is not an evidence of evolution?

what mass of sodium hydroxide is required to make cm³ of 0.2m solution? (Na=23,O=16,H=1)

calculate the current that must be passed into a solution of chromium (III) salt for one hour in order to deposit 1.2g of chromium (Cr=51)

From the equation, calculate the mass of calcium hydroxide needed to react with 50g of ammonium chloride
2NH₄+Ca(OH)₂ → 2NH₃+CaCl₂+2H₂OH

0.0075mole of calcium trioxocarbonate (iv) is added to 0.015 mole of a solution of hydrochloric acid. the volume of gas evolved at s.t.p is
(molar volume of gas at s.t.p=22.4dm³)

what is the general formula of carbohydrates

a neutral water molecules (H₂O) has an electric dipole moment of 6.2×10^{-30 c.m, how far apart are the molecules centres of positive and negative charge?}

find the angle between P and E when the torque on dipole is a maximum

an electron in the atmosphere is moved upward through displacement 520m by an electrostatic force due to an electric field 150N/C. take the charge on the electron to be 1.6×10^-19C. calculate the work done on the electron

choose the correct statement
A. electric potential is scalar
B. electric potential is vector
C. electric potential is neither a scalar nor a vector

which country has just produced the fastest moving train in the world

the full meaning of WWW in internet surfing is

who was the Nigeria's eight military ruler

the accepted concept for the theory of natural selction does not include

which of the following pair of structure does not perform the similar function