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Which of the statements about glass are correct? 1. Glass is a super-cooled liquid having infinite viscosity 2. Violet coloured glass is obtained by adding MnO ₂ 3. Glass is a man made silicate 4. Glass is a crystalline substance Select the correct answer using the code given below:

Options

  1. A1,2 and 4
  2. B2,3 and 4
  3. C1,2 and 3
  4. D1 and 3 only

Correct answer

C. 1,2 and 3

Step-by-step solution

The correct answer is option (C).

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