Chemistry in everyday life

1. Match List-I (Type of glass) with List-II (Composition) and select the correct answer: List-I List-II a. Soda glass 1. Mixture of potassium and lead silicates b. Crown glass 2. Mixture of sodium, barium, zinc and magnesium silicates c. Flint glass 3. Mixture of sodium, zinc and aluminium silicates d. Pyrex glass 4. Mixture of sodium and calcium silicates A. a-4, b-1, c-2, d-3 B. a-3, b-2, c-1, d-4 C. a-4, b-2, c-1, d-3 D. a-3, b-1, c-2, d-4

a-4, b-1, c-2, d-3
a-3, b-2, c-1, d-4
a-4, b-2, c-1, d-3
a-3, b-1, c-2, d-4

Detailed SolutionMatch List-I (Type of glass) with List-II (Composition) and select the correct answer: List-I List-II a. Soda glass 1. Mixture of potassium and lead silicates b. Crown glass 2. Mixture of sodium, barium, zinc and magnesium silicates c. Flint glass 3. Mixture of sodium, zinc and aluminium silicates d. Pyrex glass 4. Mixture of sodium and calcium silicates A. a-4, b-1, c-2, d-3 B. a-3, b-2, c-1, d-4 C. a-4, b-2, c-1, d-3 D. a-3, b-1, c-2, d-4

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6. Match the species in List I with their types List II. List-I List-II a. DDT 1. Photochemical smog b. NaClO3 2. Disinfectant c. Cl2 3. Herbicides d. PAN 4. Pesticides A. a-3, b-2, c-1, d-4 B. a-4, b-3, c-2, d-1 C. a-2, b-1, c-4, d-3 D. a-1, b-4, c-3, d-2

a-3, b-2, c-1, d-4
a-4, b-3, c-2, d-1
a-2, b-1, c-4, d-3
a-1, b-4, c-3, d-2

Detailed SolutionMatch the species in List I with their types List II. List-I List-II a. DDT 1. Photochemical smog b. NaClO3 2. Disinfectant c. Cl2 3. Herbicides d. PAN 4. Pesticides A. a-3, b-2, c-1, d-4 B. a-4, b-3, c-2, d-1 C. a-2, b-1, c-4, d-3 D. a-1, b-4, c-3, d-2

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7. Consider the following statements. 1. Glass wool has tensile strength greater than steel. 2. Glass wool is fire proof. 3. Glass wool has high electrical conductivity and absorbs moisture. 4. Glass wool is used to prepare libre glass. Which of the statements given above are correct? A. 1, 2, 3 and 4 B. 1, 2 and 3 C. 1, 2 and 4 D. 3 and 4

1, 2, 3 and 4
1, 2 and 3
1, 2 and 4
3 and 4

Detailed SolutionConsider the following statements. 1. Glass wool has tensile strength greater than steel. 2. Glass wool is fire proof. 3. Glass wool has high electrical conductivity and absorbs moisture. 4. Glass wool is used to prepare libre glass. Which of the statements given above are correct? A. 1, 2, 3 and 4 B. 1, 2 and 3 C. 1, 2 and 4 D. 3 and 4

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8. Consider the following statements. 1. Photochromic lenses are lenses that darken on exposure to ultraviolet light. 2. Photochromic properties is due to embedded microcrystalline of silver chloride in the glass. Which of the statement(s) given above is/are correct? A. Only 1 B. Only 2 C. Both 1 and 2 D. Neither 1 nor 2

Only 1
Only 2
Both 1 and 2
Neither 1 nor 2

Detailed SolutionConsider the following statements. 1. Photochromic lenses are lenses that darken on exposure to ultraviolet light. 2. Photochromic properties is due to embedded microcrystalline of silver chloride in the glass. Which of the statement(s) given above is/are correct? A. Only 1 B. Only 2 C. Both 1 and 2 D. Neither 1 nor 2

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