The Oil Palm and Its Importance to National Development (Structured Questions)

Question 1:Diagram 1.1 shows the process of latex coagulation.(a)(i) State one example of chemical P?(ii) State one characteristic of coagulated latex in Diagram 1.1.(b) Chemical P in diagram 1.1 is replaced with chemical Q to prevent latex from coagulating.State one example of chemical Q.(c) Diagram 1.2 shows the process when natural rubber is heated with … Read more

Alcohol and Its Effects on Health (Structured Questions)

Question 1:Diagram 1.1 and Diagram 1.2 show an experiment to investigate the effect of temperature on the fermentation of glucose by yeast.(a) State one hypothesis that can be made from this experiment.(b) State the variables in this experiment.   (i) Manipulated variable   (ii) Responding variable(c) Based on Diagram 1.1 and 1.2, which temperature is … Read more