9th Class Chemistry Chapter 1 Test01. Nature of Science in Chemistry

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

1. Differentiate between accuracy and precision.
2. List some properties of water?
3. Fatima has fond of junk food like French fries, burgers, and pizza. What will happen if Fatima only eats junk food? What should she add to her routine food?
4. What do you mean by paper chromatogram?
5. The branch of chemistry that focuses on the study of polymers, their types, properties, uses is called:
   1. Industrial Chemistry
   2. Polymer chemistry
   3. Organic Chemistry
   4. Astrochemistry
6. The study of the interaction between drugs and biological targets, as well as the development of new medicinal agents.
   1. Organic chemistry
   2. Medicinal chemistry
   3. Inorganic chemistry
   4. Environmental chemistry
7. What are the advatanges of using scientific tools like measuring cylinders, stopwatch and thermometers in measurements?
8. What is Rf value?
9. How can you detect hydrogen gas?
10. Define chromatography.