Cycloalkanes are alkane compounds that are in a ring shape. Some examples of cycloalkanes are given below. Which statement about these compounds is correct? Answer: 14) C A – They…

A human consumes the same amount and type of food and drink on two consecutive days. He also does the same activities on both days. However, one of the days…

Given thatܽ a=3/5+X, b= 3+X/5 and c=3+X/5+Xwhereܺ is a whole number greater than zero, whichone of the following is true? Answer: 12) B Since 6 out of the 7 options…

Below are three statements about radioactivity or nuclear energy.1 Neutrons emitted in nuclear fission can cause further fission.2 The half-life of a radioactive substance is half the time taken for…

Which of the following statements about the alkali metal rubidium is correct? Answer: 10) D Firstly, alkali metals are the elements in group 1 of the periodic table. A –…

The diagram shows the results of a breeding experiment using a homozygous black mouse and a white mouse. Mouse 1 was then allowed to mate with mouse 2. Using C…

PQR is an isosceles triangle in which PQ=PR=6cm and QR =8cm. What is the value of the tangent of angleܴܳܲ ? Answer: 8) E Divide the isosceles triangle into two…

A 100% efficient step-down transformer decreases the voltage of an alternating current (a.c.) electricity supply. What effect does this step-down transformer have on the mean power transferred and the alternating…

The diagram shows the suggested changes in energy labelled as a, b, c, d and e, during a chemical change from reactants to products. Which value is the correct energy…

Which row identifies what is occurring during anaerobic respiration in animal cells? Answer: 5) A The respiration is ANAEROBIC, meaning no oxygen is used.Carbon dioxide is only formed in aerobic…