Question:

Consider the Assertion and Reason given below.

Assertion (A) : Ethene polymerized in the presence of Ziegler Natta Catalyst at high temperature and pressure is used to make buckets and dustbins.

Reason (R) : High density polymers are closely packed and are chemically inert.

Choose the correct answer from the following:

Show Hint

Buckets and dustbins are made of high density polyethylene (HDPE), which is made with a Ziegler-Natta catalyst and has closely packed linear chains.
Updated On: Nov 5, 2026
  • Both (A) and (R) are correct and (R) is the correct explanation of (A).
  • Both (A) and (R) are correct but (R) is not the correct explanation of (A).
  • (A) is correct but (R) is wrong.
  • (A) and (R) both are wrong.
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The Correct Option is A

Solution and Explanation

HDPE is a linear polymer made by polymerising ethene with a Ziegler-Natta catalyst (triethylaluminium and titanium tetrachloride). Its chains are closely packed, so it has high density and high tensile strength, and it is chemically inert. It is used for buckets, dustbins, bottles and pipes.
The assertion (Ziegler-Natta polyethylene used for buckets and dustbins) is taken as correct, and the reason (closely packed and inert) correctly explains why HDPE is suited to such articles.
Both are correct and R explains A.
Answer: (1) Both (A) and (R) are correct and (R) is the correct explanation of (A).
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