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SSC CPO Tier 1 9 Nov 2022 Shift 2 Solved Paper
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Question : 69
Total: 200
Which of the following chemicals are vastly used in gunpowder of fireworks?
Silver nitrate and charcoal
Silver nitrate and sulphur
Potassium sulphate and Phosphorous
Potassium nitrate, sulphur and charcoal
Validate
Solution:
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