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Question and Solution 1 of 10
1. Question
1. The raw materials used for the smelting of iron ore in a furnace is
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Question and Solution 2 of 10
2. Question
2. On heating, which of the following compounds will decompose to the free metal, nitrogen (IV) oxide and oxygen?
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Question and Solution 3 of 10
3. Question
3. The group IA metals are not found free in nature because they
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Question and Solution 4 of 10
4. Question
4. Carbon exists naturally in the combined state as
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Question and Solution 5 of 10
5. Question
5. The efficiency of a solid catalyst to increase reaction rates depends on its
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Question and Solution 6 of 10
6. Question
6. Dynamic equilibrium describes a situation where
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Question and Solution 7 of 10
7. Question
7. The ion that will give a white precipitate with aqueous NaOH and soluble in excess of the base is
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Question and Solution 8 of 10
8. Question
8. Which of the following pairs of substance will react further with oxygen to form a higher oxide?
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Question and Solution 9 of 10
9. Question
9. The characteristic colour of the flame shown when a copper sail moistened with concentrated hydrochloric acid on a platinum wire is put on bunsen burner is
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Question and Solution 10 of 10
10. Question
10. In the industrial production of H2 from natural gas the CO2 produced along with the H2 is removed by
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