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Saturday, 31 October

JEE Main 2021 · ChemistryMultiple choiceSingle correctEasyConceptual

JEE Main 3 August 2021, Shift 1, Chemistry Q31

Question 31 of 90 in this shift, Chemistry question 1 of 30, Section A.

The true value of a result is 5.0g and a student ‘A’ takes two measurements and reports the result as 5.3 and 5.4g. Another student ‘B’ repeats the measurement and reports 4.6 and 4.7g. Pick the statement from below that correctly describes the reports of A and B.
  1. (1)Reports of both A and B are both precise and accurate
  2. (2)Reports of both A and B are neither precise nor accurate
  3. (3)Reports of A and B are both precise but not accurateOfficial answer
  4. (4)Reports of A and B are both accurate but not precise.

Official answer

Option 3

NTA final key.

Chapter
Some Basic Concepts of Chemistry
Topic
No close match in our taxonomy
Idea tested
No close match in our taxonomy

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.