Question
Download Solution PDFWhich of the following is a chemical change?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFKey Points
- Combustion of Liquefied Petroleum Gas (LPG) is a chemical change because it involves a chemical reaction.
- During combustion, LPG reacts with oxygen to produce carbon dioxide, water, and heat.
- This process results in the formation of new chemical substances, indicating that a chemical change has occurred.
Additional Information
- Melting of ice and boiling of water are physical changes because they involve changes in state but not in chemical composition.
- Dissolution of salt in water is a physical change as the salt can be recovered by evaporating the water.
- In contrast, chemical changes involve the making or breaking of bonds between atoms, resulting in new substances.
Last updated on Jun 16, 2025
-> RRB JE CBT 2 answer key 2025 for June 4 exam has been released at the official website.
-> Check Your Marks via RRB JE CBT 2 Rank Calculator 2025
-> RRB JE CBT 2 admit card 2025 has been released.
-> RRB JE CBT 2 city intimation slip 2025 for June 4 exam has been released at the official website.
-> RRB JE CBT 2 Cancelled Shift Exam 2025 will be conducted on June 4, 2025 in offline mode.
-> RRB JE CBT 2 Exam Analysis 2025 is Out, Candidates analysis their exam according to Shift 1 and 2 Questions and Answers.
-> The RRB JE Notification 2024 was released for 7951 vacancies for various posts of Junior Engineer, Depot Material Superintendent, Chemical & Metallurgical Assistant, Chemical Supervisor (Research) and Metallurgical Supervisor (Research).
-> The selection process includes CBT 1, CBT 2, and Document Verification & Medical Test.
-> The candidates who will be selected will get an approximate salary range between Rs. 13,500 to Rs. 38,425.
-> Attempt RRB JE Free Current Affairs Mock Test here
-> Enhance your preparation with the RRB JE Previous Year Papers.