UNIBEN General Paper 2022/2023 Past Questions

____ is the removal of trees from an area for adequate re-planting

The hormone which tones-up the muscles of a person in time of danger is produced by ____.

Metabolism consists of two processes which are ____.

Which of the organisms lack a cell wall?

Which of the following blood component has the greatest affinity for oxygen?

From the following list of types of mutation, identify the one that is hereditary.

Which of these would not be a limiting factor in photosynthesis?

In a cell digestive enzymes mostly occur in

Which of the following factors is not associated with aquatic habitat?

Terrestrial organisms which are capable of maintaining their body temperatures constant within fairly close limits are referred to as

A brand of ink containing cobalt(III), copper(II) and Iron (II) ions can best be separated into its various compounds by

If the rate law obtained for a given reaction is given as rate = K[X]ⁿ[Y]^m, what is the overall order of the reaction.

A molecular formula shows __________ in a molecule.

Give the total mass of copper in 1gram of copper(II) sulphate (Cu = 40, S = 32, O = 16)

$$^{114}_{55}Cs \rarr ^{a}_{z}E + ^{4}_{2}\alpha$$ Find the value of A and Z in the equation above

Water can be obtained as the only product during

The oxidation of ammonia in excess air produces

The gassification of coke is used for the manufacture of

The solubility curve shows the variation of solute concentration with

The density of a certain gas is 1.98gdm^-3 at STP. What is the molecular mass of the gas? (molar volume of a gas at STP = 22.4dm^-3)

Density of NH₃ at 373k and 1.15atm pressure is (R= 0.082atm-dm^-3/kmol)

Yeast is added to the dough during the preparation of bread because it produce

The fine adjustment of the microscope is used to ....

Which of the following blood vessels have valve

The main function of a queen in a termite colony is ......

The amount of energy passed from one trophic level to the next decreases because ..

A guitar string is 75cm long. The wavelength of the fundamental note is

A man standing between two parallel mirrors in a barber's shop will see the following number of his own image.

Which of the following electromagnetic waves has the shortest wavelength

In an electrolysis experiment, a cathode of mass 5g is found to weigh 5.01g after a current of 5A flows for 50 seconds. What is the electrochemical equivalent of the deposited substance?

The activity of a radioactive substance depends on

A consequence of rectilinear propagation of light is

The radius of curvature of a concave mirror is 18.0cm. If the image distance of an object placed before it is 36.0cm, calculate the linear magnification

The angle of minimum deviation and the refractive angle of a triangular glass prism are 30° and 60° respectively. Calculate the refractive index of the prism

During the dispersion of while light by a prism, the colour that is mostly deviated is