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Sec 4 Normal Science Chem TYS MCQ 2019 Set B
Quiz by HAO YI
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​A student is given a mixture of three substances, P, Q and R.
The table shows some properties of P, Q and R.
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B
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During which process does the movement of the particles decrease?
A student is given a mixture of three substances, P, Q and R.
The table shows some properties of P, Q and R.
An element has two isotopes.
Which statement about the atoms of each isotopes is correct?
Which diagram shows a representation of a mixture of elements and compounds?
A sodium atom has the electronic configuration 2.8.1 and a chlorine atom has the electronic configuration 2.8.7.
What happens when a sodium atom and a chlorine atom react to form an ionic bond?
The molecular formulae of four compounds are shown.
Which formula has the largest number of atoms?
The formulae of two ionic compounds of chromium are Cr2O3 and CrCl3.
What are the charges on the chromium ions in these compounds?
The table shows the reactions of some oxides.
Which row shows the type of oxides W, X and Y?
Lead(II) iodide is an insoluble salt which is formed in the reaction of aqueous lead(II) nitrate with aqueous potassium iodide.
How is pure lead(II) iodide obtained from the two reactants?
The positions of two elements iodine, I, and chlorine, Cl, in the Periodic Table are shown.
How do the colours and melting points of iodine and chlorine compare?
Which statement about the element with relative atomic mass 16 is correct?
Which diagram shows the arrangement of the particles in an alloy?
Pieces of copper, iron and magnesium, of the same size and shape, are added to dilute hydrochloric acid. The diagram shows the results.
Which metal was placed in each tube?
The experiment shown in the diagram is set up. The mass of iron and volume of gas is each tube is the same.
The apparatus is left for one month.
In which tube does the water level rise the most?
In which list are all the named gases atmospheric pollutants?
What is the volume of nitrogen in 50 cm3 of air?
Which is the main source of energy in natural gas?
Which row describes a polyunsaturated molecule?
Which reaction is an example of cracking?
