Question 3
Question 3 of 40
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Periodic Table
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No letter options?
Older MCQs might not have the typical A, B, C, D choices. They have choices 1, 2, 3, and a combination of them is the answer. Below is the key that maps such combinations to the answer.
A 1, 2 and 3 are correct
B 1 and 2 only are correct
C 2 and 3 only are correct
D 1 only is correct
Topics Tested
10. Chemistry of the envi...
10.1. Water

Describe how to test for the purity of water using melting point and boiling point

12. Experimental techniqu...
12.4. Separation and purification

Identify substances and assess their purity using melting point and boiling point information

11. Organic chemistry
11.6. Alcohols

Describe the manufacture of ethanol by: (a) fermentation of aqueous glucose at 25–35°C in the presence of yeast and in the absence of oxygen (b) catalytic addition of steam to ethene at 300°C and 6000kPa/60 atm in the presence of an acid catalyst