Navigation Menu
Home Blog Latest Notices
100% Free

HEC ETC - USAT GS Entry Test - Gen Science - Chemical Reactions - Quiz 2

Practice 10 high yield MCQs on Gen Science from Chapter Chemical Reactions for USAT GS Entry Test. After submission, get instant results with correct answers and detailed explanations. This is Quiz 2 of the series.

11. What do exothermic reactions do?



12. What do endothermic reactions do?



13. What is an indicator in chemistry?



14. What color does litmus turn in acid and base?



15. What is a chemical equation?



16. Why is burning considered a chemical change?



17. What is electrolysis?



18. What does the law of conservation of mass state?



← Back to Quiz Sets
Instructions: Select one answer per question. After submitting, you will see your score, correct answers, and explanations.

Medical Colleges in Pakistan

Explore medical institutions city‑wise – public & private.

Browse All Medical Colleges →