UNIBEN General Paper 2010/2011 Past Questions

which of the following best describes viruses?

loss of nitrogen in the soil is caused by a process known as

which of the following represented the watson -crick DNA base pair model?

the liver performs all the following functions EXCEPT

all but ONE of the following are atmospheric pollutants.

on what part of the tongue do we perceive salty taste

maintenance of homeostasis in mammals is a function of all the following EXCEPT

biotechnology has helped to produce plants and animals of these desirable features, EXCEPT

insects which undergo complete metamorphosis are those that

the type of storage organ found in ginger is called

the geotropic response of a seedling is detected

the substrate in cellular respiration is

a good example of roughage-containing food material is;

the world health organization defines good health as

the stage which the chromosomes move towards to opposite oles during mitosis is

which of the following can sublime?

a certain compound on analysis gave 2.02g of carbon, 0.35g of hydrogen and 2.68g of oxygen. if the molecular mass is 90, calculate the molecular formula

isotopy is due to differences in the number of

chlorine is a ...

calcium carbide reacts with water to form ethyne. what mass of calcium carbide (grams) would react to gibe 1.12dm³ of ethyne at STP? (Ca - 40, C - 12, H - 1)

5.3g of silver trioxonitrate(v) was dissolved in 50cm³ of water at 25°C. calculate the solubility of the salt in mol dm^-3 (Ag = 108, N = 1, 0 = 16)

which of the following decomposition equations is correct?

in the reaction of aqueous solution of HCL and NaOH, the heat change of

which of the following gases is colourless and odourless?

the two hydrocarbon used as lower and upper standards for petrol are

benzene commonly undergoes ........... reactions

under high pressure, real gases deviate from compliance with gas laws because their molecules

which of the 3d, 4s, 4p, 4d has the lowest energy?

one of the causes of algae growth in rivers is the presence of

phenolphthalein solution at pH 2.5 is

which of the following is a vector quantity?

calculate the work done by a bricklayer who lifted cement block of mass 10kg from the floor to a height of 2.5m (acceleration=9.8ms_-2)

find the potential energy of a diver of mass 75kg at height of 10m above a swimming pool (acceleration due to gravity=9.8ms_-2)

determine the wavelength of fundamental note of guitar string of length 65cm long

find the combined resistance of two wires each of resistance 8-ohms when they are connected in parallel

a force of 300N was used to pull a load of mass 40kg at a steady speed up an inclined of length 6.2m and vertical height 3.5m. determine the velocity ratio

which of the following is NOT TRUE about pressure?

120cm³ of gas was collected at 20°C and 745mm of mercury pressure. find the volume of gas at standard temperature and pressure.

a metal of length 30cm is heated until its temperature rises by 60°C to a new length of 30.0cm. calculate its linear expansivity

which of the following statements is not correct?

determine the elastic constant of a spring if a force of 1N stretches it by 2.7cm

which of the following objects in NOT in stable equilibrium?

which of the following is not true of boiling?

A swimming pool viewed directly from above its surface appears to be 12m deep. find the real depth (the refractive index=$$\frac43$$)

A transformer has 500turns in the primary coil and 400 turns in the secondary coil. find the voltage in the secondary coil when the primary coil is connected to a 220v main