Bedding plane is a characteristic of

• A. sedimentary rocks
• B. igneous rocks
• C. metamorphic rocks
• D. volcanic rocks

The rate of chemical reaction of solids are not affected by

• A. catalyst
• B. pressure
• C. particle size
• D. temperature

(a)(i) Draw the energy profile diagram for the reaction

H\(_{2(g)}\) + I\(_{2(g)}\) ---> 2HI\(_{(g)}\) \(\Delta\) = —13 kJmol\(^3\)

(ii) If the concentration of HI increases from 0 to 0.001 mol dm\(^3\) in 50 seconds, what is the rate of the reaction?

(b) State the type of salt represented by each of the following compounds:

(i) K\(_4\)Fe(CN)\(_6\) (ii) (NH\(_4\))\(_2\)Fe(SO\(_4\))\(_2\)6H\(_2\)O (iii) Mg(OH)NO\(_3\) (iv) NaH\(_2\)PO\(_4\).

(c) Explain, giving equations, the following observation: When carbon (IV) oxide is passed into lime water, it turns milky initially but turns clear with excess carbon (IV) oxide.

(d)(i) Give one use for each of the following compounds: CaCO\(_3\), CaSO\(_4\), NaHCO\(_3\).

(ii) State a drying agent for each of the following gases: i. NH\(_3\), II. HCI Ill. SO\(_4\).

(iii) Write an equation to illustrate the reaction of ammonia as a reducing agent.

(e) An industrial raw material has the following composition by mass:

Iron = 28.1%

Chlorine = 35.7%

Water of crystallization = 36.2%

Calculate the formula for the material. [ H = 1, 0 = 16, Cl = 35.5, Fe = 56 ].

Find the mean deviation of 2, 4, 5, and 9

• A. 1
• B. 2
• C. 5
• D. 7

The correct relationship between G and g in a gravitational field is given by the equation (Where the symbols have their usual meanings)

• A. g = \(\frac{GM}{R}\)
• B. g = \(\frac{GM}{R^2}\)
• C. g = \(\frac{GM^2}{R}\)
• D. g = \(\frac{GM^2}{R^2}\)

The absolute address of cell G5 in a spreadsheet application is represented by?

• A. $G5
• B. G$5
• C. $G$5
• D. $G5$

Quasi-rent refers to

• A. payment made on aquisition of a firm's premises
• B. payment made for the procurement of tools and equipments
• C. returns on investment
• D. payments made on any factors of production that is temporaly fixed in supply

These questions are based on General Literary Principles.

The account of an experience of an individual during the course of a journey is known as

• A. an autobiography
• B. a catalogue
• C. a memoir
• D. a travelogue

When an axon is at rest, the concentration of ions on either side of the membrane are different. Which of the following is correct about the concentrations of ions on either side of the membrane?

• A. There is an excess of potassium ions inside the axon and an excess of sodium ions outside
• B. The inside of the axon becomes positively charged while the outside is negatively charged
• C. There is an excess of sodium ions on the inner side of the axon
• D. Chloride and potassium ions begin to move acrossthe membrane

The first Head of State and Head of Government in Nigeria was

• A. Lord Frederich Lugard
• B. Alhaji Abubakar Tafawa Balawa
• C. Major Kaduna Nzeogwu
• D. Alhaji Shehu Shagari