In the diagram below, which of the curves represents the evolution of oxygen with time in the equation 2KClO3(s) → 2KCl(s) + 3O2(g)?

• A) X
• B) Y
• C) Z
• D) R

a,b,c,d,e,f If a+b=10 and e+f=20, then what could be the median of the whole set if all of them are arranged in increasing order?

• A. 7.5
• B. 20
• C. 4
• D. 15

In which of the following parts of a cell is the chromosome found

• A. Nucleus
• B. Golgi body
• C. Cytoplasm
• D. Cell membrane

Obtain a maximum value of the function f(x) x³ - 12x + 11

• A. -5
• B. -2
• C. 2
• D. 27

The Hadith collection which is arranged according to ismad and matn is

• A. musannof
• B. muwatta
• C. musmad
• D. mutawatr

To make the entire slides in a presentation to have the same look in MS PowerPoint, a user should?

• A. use the slide layout option.
• B. use outline view
• C. use a presentation design template.
• D. add a slide option.

(a) What is surface tension?

(b) State two methods by which the surface tension of a liquid can be reduced.

What is the bearing of Q from P, if Q lies NNW from P?

• A. 67.5°
• B. 157.5°
• C. 247.5°
• D. 337.5°

Which of the following gas laws is equivalent to the work done?

• A) Boyle' law
• B) Charles law
• C) Pressure law
• D) van der Waal's law

They are formed from the accumulation of materials derived from other rocks which have been cemented together this is a description of

• A. metamorphic rocks
• B. plutonic rocks
• C. organically formed sedimentary rocks
• D. mechanically formed sedimentary rocks