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1. |
Viscose is formed by dissolving: |
A. | Wood pulp into a solution of hydrochloric acid. |
B. | Wood pulp into sodium hydroxide solution. |
C. | Wood pulp into sulphuric acid solution. |
D. | Polyester into sodium hydroxide solution. |
E. | None of these |
Answer» C. Wood pulp into sulphuric acid solution. | |