Question
Which of the following statements about some commonly used household chemicals are correct?
1. Baking soda is used in baking because on heating it can release carbon dioxide gas.
2. Washing soda helps to soften hard water by precipitating calcium and magnesium ions as carbonates.
3. Bleaching powder acts as a disinfectant because it can slowly release chlorine.
4. Vinegar is a strong mineral acid and therefore behaves like concentrated hydrochloric acid.
Select the correct answer using the codes given below:
Asked in Delhi Head Constable AWO TPO · 2025
Medicines and Chemicals in Healthcare · Chemistry
Exam PYQ4 Options
Quick Revision
An atom’s atomic number equals its number of protons.
Correct AnswerCorrect option for this question
Learn Medicines and Chemicals in Healthcare in 60 Seconds
This short lesson breaks down Chemistry in Everyday Life: 30 Must-Know Compounds into clear points for faster understanding and revision.
Everything you need to learn, practice & excel — in one place.
3,000+ Video-Based Study Material
PYQ-Based Quizzes
4,000+ Informative Audiobooks
6,300+ Full-Length Mock Tests
Daily Current Affairs
40,000+ PYQs
Questions Asked from Chemistry in Everyday Life: 30 Must-Know Compounds in Previous Exams
See how often Chemistry in Everyday Life: 30 Must-Know Compounds has appeared in previous-year questions across major government exams.
8UPSC Questions Asked in These Years:2010, 2011, 2012, 2015, 2020, 2021, 2023, 2024
9SSC Questions Asked in These Years:2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
8Railways Questions Asked in These Years:2016, 2018, 2020, 2021, 2022, 2024, 2025, 2026
14State PSC Questions Asked in These Years:2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
Chemistry in Everyday Life: 30 Must-Know Compounds has appeared in 39 previous-year exam questions, most frequently in State PSC, SSC and UPSC.
2-Minute Revision Notes
Revise Medicines and Chemicals in Healthcare and Its Related Concepts
Strengthen key concepts with exam-focused visual notes for faster revision.
Explore More Questions
Continue practising by chapter, topic and related subjects.
One question solved. Keep going.
Continue with the next Chemistry in Everyday Life question and build your accuracy one question at a time.