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AITS & Test SerieshardMCQ SINGLE

Question

See image

Chemistry diagram for: See image

Answer: B

💡 Solution & Explanation

N C O OCN + O O H OH     + N C O NCO N O O O O N H O H N C O OCN 2 RNH  N H O O O O N O H N C O RHN H OCN urea group   Urethanepolymer 

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