Chemistry: Inorganic Chemistry: UPSC Previous Year Questions (Science and Technology)
1 previous year UPSC Prelims question on Chemistry: Inorganic Chemistry (Science and Technology). Choose an option to see the answer and explanation.
Explanations state facts as of the year each question was asked; words like “recently” refer to that year.
Showing 1–1 of 1 question
UPSC 1997Science and Technology · Chemistry: Inorganic Chemistry
Q1. The most reactive among the halogens is:
Explanation
Fluorine is the most reactive halogen because:
Small Atomic Size: Fluorine has the smallest atomic radius among halogens, leading to a strong attraction for electrons. High Electronegativity: It is the most electronegative element in the periodic table, making it highly effective in gaining electrons. Low Bond Dissociation Energy: The F-F bond in molecular fluorine is weak due to electron repulsion between the two small atoms, which makes it highly reactive. Reactivity Trend in Halogens:
Fluorine > Chlorine > Bromine > Iodine
Answer key for these questions
Q
UPSC year
Correct answer
1
1997
(a) Fluorine
Frequently asked questions
How many previous year UPSC questions are there on Chemistry: Inorganic Chemistry?
This page covers 1 previous year UPSC Prelims GS Paper-I questions on Chemistry: Inorganic Chemistry (Science and Technology), asked from 1996 to 2008. Each has the correct answer and an explanation.
How should I use previous year UPSC questions for Prelims?
Attempt each question first, then open the answer and read the explanation for every option. Repeat by chapter, and track which statements UPSC reuses across years. Previous year questions show the exam pattern and difficulty level.
Which years are covered for Chemistry: Inorganic Chemistry?
Questions on Chemistry: Inorganic Chemistry (Science and Technology) are available for 11 years, from 1996 to 2008. Use the Year filter to practise a single paper.
