An object is placed in front of two plane mirrors inclined at an angle of 0^o. If the total number of images formed is 7, Find the value of \(\theta\)

• A. 30^o
• B. 45^o
• C. 51^o
• D. 90^o

Which of the following Alkanols will not undergo oxidation reaction by acidified K\(_2\)Cr\(_2\)O\(_7\)?

• A)
  CH\(_3\)CH\(_2\)CH(OH)CH\(_3\)
• B)
  CH\(_3\)CH\(_2\)CH\(_2\)CH\(_2\)OH
• C)
  CH\(_3\)CH\(_2\)CH\(_2\)C(CH\(_3\))(OH)CH\(_3\)
• D)
  None of the above

Span of control is defined as the

• A. authority of the supervisior
• B. qualification possessed by the supervisor
• C. number of staff in the organization
• D. number of surbodinates reporting directly to a supervisor

The unity of Allah is expressed in suratul

• A. Qadr
• B. Falaq
• C. Kafirun
• D. Ikhlas

What is the concentration of H\(^+\) ions in moles per dm\(^3\) of a solution of pH 4.398?

• A)
  \(4.0 \times 10^{-5}\)
• B)
  \(0.4 \times 10^{-5}\)
• C)
  \(4.0 \times 10^{-3}\)
• D)
  \(0.4 \times 10^{-3}\)

One of these metals is not an alkali metal

• A) K
• B) Cs
• C) Sr
• D) Rb

The first term of a Geometric Progression (GP) is \(\frac{3}{4}\), If the product of the second and third terms of the sequence is 972, find its common ratio.

• A. 3
• B. 4
• C. 6
• D. 12

The main aim of the formation of ECOMOG was to

• A. foster stability in West Africa
• B. solve boundary disputes among member states
• C. provide security for the whole of Africa
• D. tackle the problem of piracy in African seaways.

The horizontal component of the initial speed of a particle projected at 30° to the horizontal is 50 m\(^{-1}\). If the acceleration of free fall due to gravity is 10 ms\(^{-2}\), determine its;

(a) initial speed;

(b) speed at the maximum height reached.

Bacteria that live in the human intestine assist in the digestion and feed on nutrients the human consumed. This relationship might best be described as

• A) Commensalism
• B) Ectoparasitism
• C) Endoparasitism
• D) Mutualism