Write three uses of bases. [3 MARKS]

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Solution

Each point: 1 Mark

1. Sodium hydroxide is used in manufacture of soap, paper and a synthetic fiber.
2. Calcium hydroxide (slaked lime) is used in the manufacture of bleaching powder.
3. Magnesium hydroxide is used as an 'antacid' to neutralize excess acid in the stomach and cure indigestion.

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