NEET UG 2021 · Chemistry · Question 73
NEET 2021 Chemistry, question 73
Question 73 of the NEET 2021 paper (code O1) is a Chemistry question from The p-Block Elements (Class 12). Its idea, Trends in Groups 15 to 18, was asked 4 times, in 2018, 2021 and 2024, across NEET 2017–2026. The NTA final answer key gives option 3.
Updated 2026-10-08
Q73 · Chemistry
Statement I :
Acid strength increases in the order given as HF << HCl << HBr << HI.
Statement II :
As the size of the elements F, Cl, Br, I increases down the group, the bond strength of HF, HCl, HBr and HI decreases and so the acid strength increases.
In the light of the above statements, choose the correct answer from the options given below.
- 1Statement I is correct but Statement II is false.
- 2Statement I is incorrect but Statement II is true.
- 3Both Statement I and Statement II are true.Official answer
- 4Both Statement I and Statement II are false.
Official answer: option 3 · NTA final answer key
Same idea
Trends in Groups 15 to 18, in other papers
NEET asked this idea 4 times, in 2018, 2021 and 2024. The other 3 questions below.
- 2024 Q72Among Group 16 elements, which one does NOT show oxidation state?One-line MCQ · Easy
- 2021 Q100In which one of the following arrangements the given sequence is not strictly according to the properties indicated against it ?One-line MCQ · Medium
- 2018 Q50Which of the following statements is not true for halogens ?One-line MCQ · Medium
Trends in Groups 15 to 18: every question and how it was framed
The chapter
The p-Block Elements (Class 12) in ten years of NEET
23 questions from 2017–2026, asked in 10 of 10 papers, about 2.2 a paper. p-Block Elements (Groups 15-18) alone had 23.