Polymers
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Keep it short & simple. Type complete word. Avoid abusive language.
Match List I with List II:
List I
(molecule)
List II
(hybridization; shape)
A.
Nylon 6.6
I.
Buckets
B.
Low density polythene
II.
Non-stick utensils
C.
High density polythene
III.
Bristles of brushes
D.
Teflon
IV.
Toys
Choose the correct answer form the options given below
Match List I with List II:
|
List I (molecule) |
List II (hybridization; shape) |
||
|
A. |
Nylon 6.6 |
I. |
Buckets |
|
B. |
Low density polythene |
II. |
Non-stick utensils |
|
C. |
High density polythene |
III. |
Bristles of brushes |
|
D. |
Teflon |
IV. |
Toys |
Choose the correct answer form the options given below
Based upon the properties and uses of chemical substances.
Upvote 
Match the List-I with List-II
List – I List – II
(Polymer) (Used in)
(A) Bakelite (I) Radio and television cabinets
(B) Glyptal (II) Electrical switches
(C) PVC (III) Paints and Lacquers
(D) Polystyrene (IV) Water pipes
Match the List-I with List-II
List – I List – II
(Polymer) (Used in)
(A) Bakelite (I) Radio and television cabinets
(B) Glyptal (II) Electrical switches
(C) PVC (III) Paints and Lacquers
(D) Polystyrene (IV) Water pipes
Bakelite used for making electrical switches, Glyptal used for paints and lacquers, PVC used for water pipe and polystyrene used for Television cabinets.
Upvote Rayon is the semi synthetic polymer.
Upvote Kindly consider the following figure
Upvote Kindly consider the following figure
Upvote 0.01 M KMnO4 solution was added to 20.0mL of 0.05 M Mohr’s salt through a burette. The initial reading of 50mL burette is zero. The volume of KMnO4 solution left in the burette after the end point is__________ mL. (nearest integer)
0.01 M KMnO4 solution was added to 20.0mL of 0.05 M Mohr’s salt through a burette. The initial reading of 50mL burette is zero. The volume of KMnO4 solution left in the burette after the end point is__________ mL. (nearest integer)
n-factor of KMnO4 in acidic medium = 5
n-factor of Mohr's salt = 1
meq of KMnO4 = meq of Mohr's salt
0.01 * 5 * V = 0.05 * 1 * 20
Volume of KMnO4 used, V = 20 mL
So; Volume of KMnO4 left in burette = 50 -20mL
= 30 mL
Upvote Given below are two statements, one is Assertion (A) and other Reason (R).
Assertion (A): Natural rubber is a linear polymer of isoprene called cis-polyisoprene with elastic properties.
Reason (R): The cis-polyisoprene molecules consist of various chains held together by strong polar interactions with coiled structure.
In the light of the above statements, choose the correct one from the options given below:
Given below are two statements, one is Assertion (A) and other Reason (R).
Assertion (A): Natural rubber is a linear polymer of isoprene called cis-polyisoprene with elastic properties.
Reason (R): The cis-polyisoprene molecules consist of various chains held together by strong polar interactions with coiled structure.
In the light of the above statements, choose the correct one from the options given below:
Natural rubber is a linear polymer of isoprene called cis-polyisoprene and has elastic properties.
Ci-polyisoprene molecule consists of various chains held together by weak vander Waals interactions and has a coiled structure.
Upvote In the given reaction,
The number of π- electron present in the product ‘p’ in__________.
In the given reaction,
The number of π- electron present in the product ‘p’ in__________.
Aniline show acid-base reaction with AlCl3
aniline is a Lewis base while AlCl3 acts as lewis acid.
Upvote The number of oxygen’s present in a nucleotide formed from a base, that is present only in RNA is_______________.
The number of oxygen’s present in a nucleotide formed from a base, that is present only in RNA is_______________.
