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questions & answers.
Q1.
Iron is used in construction of bridge. Give reasons.
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Iron is used to make bridges because of its low cost, high strength, easy extraction process from ores and high availability.
Q2.
No gas is released when sulphur is added to dilute HCL. Give reasons.
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answer not shownQ3.
What is the nature of a non-metal oxide?
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Non metal oxides are acidic oxides. These oxides when dissolves in water form acids which turns blue litmus red.
Q4.
Name a non-metal used for vulcanization of rubber.
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Sulphur is used in vulcanisation of rubber.
Q5.
Differentiate between metal oxide and non-metal oxides.
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