BMAT 2010 Section 2 Question 6
Carbon, in the form of coke, is used to reduce iron oxide in a blast furnace. The three stages are shown below:1 C + O2 → CO22 CO2 + C…
Carbon, in the form of coke, is used to reduce iron oxide in a blast furnace. The three stages are shown below:1 C + O2 → CO22 CO2 + C…
The following statements are about hormone levels and their effect:1 Increasing levels of insulin cause an increase in blood glucose levels.2 Increasing levels of oestrogen increases the thickness of the…
I have two containers with different capacities. Initially, the larger one is full of water and the smaller one is empty. I pour water from the larger container into the…
In a laboratory experiment, protactinium-234 undergoes radioactive decay by β-emission into uranium-234. The table below describes how the mass of uranium-234 present in the sample varies with time from the…
A compound of iodine and oxygen contains 63.5g of iodine and 20.0g of oxygen. Which of the following would be its formula? Answer: 2) E We need to use the…
Which row of the table correctly describes what happens when body temperature rises in a human? Answer: 1) E Homeostatsis (temperature, water level in body etc.) is related to the…
The first graph shows the variation of the displacement of particles with distance along a wave at aparticular instant in time: The second graph shows the variation with time of…
Naturally occurring chlorine is a mixture of two isotopes with mass number 35 and 37. Theisotope with mass number 35 is three times as common as the isotope with mass…
An oxide of iron has the formula Fe3O4 and contains both Fe^2+ and Fe^3+ ions. Which one of the following is the fraction of iron ions that are in the…
The following five statements relate to homeostasis (the maintenance of stable internal conditions of the body):1 Insulin helps to control the water content of the body.2 Homeostasis depends only on…