Match List I with List II. List-I List-II a. Hydrogen was discovered by 1. Priestley b. The name hydrogen was proposed by 2. Bernard c. Hydrogen peroxide was discovered by 3. Lavosier d. Oxygen was discovered by 4. Cavendish A. a-4, b-3, c-2, d-1 B. a-3, b-2, c-1, d-4 C. a-2, b-1, c-4, d-3 D. a-1, b-4, c-3, d-2

The correct answer is: D. a-1, b-4, c-3, d-2

• Hydrogen was discovered by Henry Cavendish in 1766.
• The name hydrogen was proposed by Antoine Lavoisier in 1783.
• Hydrogen peroxide was discovered by Joseph Priestley in 1774.
• Oxygen was discovered by Joseph Priestley in 1774.

Here is a brief explanation of each option:

• Option A: a-4, b-3, c-2, d-1. This option is incorrect because it states that hydrogen was discovered by Priestley, but hydrogen was actually discovered by Cavendish.
• Option B: a-3, b-2, c-1, d-4. This option is incorrect because it states that the name hydrogen was proposed by Bernard, but the name hydrogen was actually proposed by Lavoisier.
• Option C: a-2, b-1, c-4, d-3. This option is incorrect because it states that hydrogen peroxide was
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