With reference to different types of glass and their properties, consider the following statements: 1. Pyrex glass (borosilicate glass) has a low coefficient of thermal expansion due to the substitution of alkali oxides with boron trioxide. 2. Flint glass contains lead oxide, which increases its refractive index and makes it highly suitable for optical lenses. 3. Soda-lime glass is highly resistant to thermal shock and chemical attack, making it the preferred choice for laboratory apparatus. Which of the statements given above is/are correct?

Options:

• A: 1 and 2 only
• B: 2 and 3 only
• C: 1 and 3 only
• D: 1, 2 and 3

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