Question
Bakelite is a polymer which is used in the manufacturing
of buckets and electrical switches. What are the monomers of bakelite?Solution
A polymer is formed from monomer units. Bakelite is a polymer formed from phenol and formaldehyde (which are monomers). Bakelite is an early plastic. It is a thermosetting polymer (thermosetting plastics remain in a permanent solid state once hardened) formed from condensation of phenol and formaldehyde. Neoprene is the polymer of chloroprene. Polyethylene terephthalate is the polymer of ethylene glycol and terephtalic acid. Buna –S is the polymer of 1, 3 buta diene ad styrene. Hence, option A is correct.
Alkali metals have ______.
I. low melting points
II. low densities
The insecticide gammexane is chemically known as:
Which gas is used to convert vegetable oils into solid fats?
Kindly Study the following questions carefully and choose the right answer.
The site where complete digestion of carbohydrates, proteins and fa...
Which of the following organic compounds undergo nucleophilic substitution reaction most easily?
Which one of the following is commonly used for pulp bleaching in the paper industry?
Which of the following is a synthetic polymer?
Which of the following is the most electronegative element in the periodic table?
Which bond is weakest in nature?
Which of the following cannot be cut by a knife?
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