Advertisements
Advertisements
Question
Write a note on aldol condensation.
Advertisements
Solution
Aldol Condensation : -
When aldehyde or ketone containing α -hydrogen atom is warmed with dilute alkali like dil. NaOH then condensation reaction takes place, a β -hydroxy aldehyde or β -hydroxyl ketones is obtained and the reaction is called as Aldol condensation.
APPEARS IN
RELATED QUESTIONS
Write the names and structure of the monomers of the following polymers:
Nylon-6, 6
Which of the following is a fibre? Nylon, neoprene, PVC
Write the names of monomers of the following polymers:
Write the names of monomer of the following polymer:
How can you differentiate between addition and condensation polymerisation?
How is dacron obtained from ethylene glycol and terephthalic acid?
What are thermoplastic polymers?
What is the significance of number of 6,6 in the polymer nylon-6,6?
Write the name of the monomer of the following polymer:
Bakelite
Write the name of the monomer of the following polymer:
Nylon – 2 – Nylon – 6
Which of the following polymers can have strong intermolecular forces?
(i) Nylon
(ii) Polystyrene
(iii) Rubber
(iv) Polyesters
Which factor imparts crystalline nature to a polymer like nylon?
Assertion: Polyamides are best used as fibres because of high tensile strength.
Reason: Strong intermolecular forces (like hydrogen bonding within polyamides) lead to close packing of chains and increase the crystalline character, hence, provide high tensile strength to polymers
Which of the following polymer is used for making phonograph records?
Nylon is a
Wash and wear clothes are manufactured using
Melamine is
Celanese silk is:-
Nylon – 6 is made from
Which is used for the formation of nylon – 6?
The polymer formed on heating Novolac with formaldehyde is ______.
The polymer containing strong intermolecular forces, e.g., hydrogen bonding, is ______.
The polymer formed on heating Novolac with formaldehyde is ______.
