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Important Compounds of Carbon and Silicon
1. What is the basic structural unit of a silicate?
a) Si4–
b) SiO–
c) SiO4
d) SiO44-
Answer: SiO44-
2. What is the chemical formula of beryl?
a) Be3Al2Si6O18
b) Be3AlSi6O18
c) Be3Al2Si6O
d) BeAl2Si6O18
Answer: Be3Al2Si6O18
3. What is the second hardest material known?
a) Coke
b) Carborundum
c) Graphite
d) Diamond
Answer: Carborundum
4. The cross-linked polymer compounds containing silicone which are linear and the cyclic are called
a) coal
b) silicones
c) silicate
d) silicanes
Answer: silicones
5. Which of the following is not a component of glass?
a) Sodium chloride
b) Calcium carbonate
c) Silica
d) Sodium carbonate
Answer: Sodium chloride
6. When aluminium ions replace silicon ions and silicon dioxide what is it called?
a) silicanes
b) silicates
c) silicons
d) zeolites
Answer: zeolites
7. which of the following is not a part of the composition of natural gas?
a) hydrocarbons
b) methane
c) ethane
d) benzene
Answer: benzene
8. What is the full form of LPG?
a) liquefied phenolic gas
b) liquefied pentane gas
c) liquefied petroleum gas
d) liquid petroleum gas
Answer: liquefied petroleum gas
9. Which of the following mixture is known as producer gas?
a) carbon dioxide and hydrogen
b) carbon monoxide and hydrogen
c) carbon monoxide and nitrogen
d) carbon dioxide and nitrogen
Answer: carbon monoxide and nitrogen
10. Which of the following is not a property of carbon monoxide?
a) odourless
b) colourless
c) water-insoluble
d) oxidising agent
Answer: oxidising agent