Question : The polymer obtained by the condensation of hexamethylene diamine and adipic acid is:
Option 1: Nylon 66
Option 2: Terylene
Option 3: Nylon
Option 4: Bakelite
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Correct Answer: Nylon 66
Solution : The correct option is Nylon 66.
The polymer formed by the reaction of hexamethylene diamine with adipic acid is known as "Nylon 66". It is a synthetic polyamide made up of repeating units produced from these two monomers. Nylon 66 is well-known for its strength, durability, and wide range of uses, which include textiles, industrial products, and engineering components. The reaction can be represented as follows: Hexamethylene diamine + Adipic acid → Nylon 66 + Water.
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Question : Terylene is a condensation polymer of ethylene glycol in which acid?
Option 1: Benzoic acid
Option 2: Salicylic acid
Option 3: Phthalic acid
Option 4: Terephthalic acid
Question : The acid which is secreted by the glands in the stomach wall is
Option 1: Sulphuric acid
Option 2: Hydrochloric acid
Option 3: nitric acid
Option 4: Phosphoric acid
Question : What is the chemical name of vinegar?
Option 1: Lauric acid
Option 2: Acetic acid
Option 3: Malic acid
Option 4: Oxalic acid
Question : The reaction between an acid and a base is known as _________.
Option 1: condensation reaction
Option 2: substitution reaction
Option 3: oxidation reaction
Option 4: neutralisation reaction
Question : Seed dormancy is regulated by
Option 1: Abscisic Acid
Option 2: Gibberellic Acid
Option 3: Indole Acetic Acid
Option 4: Ethylene
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