3 Which branch is essential for food digestion studies? A Organic chemistry B Biochemistry C Physical chemistry D Nuclear chemistry
4 Which branch helps in quality control of products? A Organic chemistry B Analytical chemistry C Nuclear chemistry D Biochemistry
6 Chemistry helps in understanding nature by studying: A Only living things B Only non-living things C Matter and its changes D Only machines
7 A scientific law describes: A Why something happens B How something happens C What happens under given conditions D Personal opinion
10 Which branch of chemistry supports forensic science? A Organic chemistry B Analytical chemistry C Biochemistry D Nuclear chemistry
12 Which branch deals with pollution and waste management? A Biochemistry B Environmental chemistry C Organic chemistry D Analytical chemistry
13 Which branch studies chemicals present in the environment? A Industrial chemistry B Environmental chemistry C Polymer chemistry D Nuclear chemistry
14 Homogeneous mixture has: A Uniform composition B Visible parts C Different layers D Large particles
16 Historical development of chemistry shows that it evolved from: A Biology B Physics C Alchemy D Astronomy
17 Inorganic chemistry mainly studies: A Carbon compounds only B Compounds of metals and non-metals C Living systems D Chemical analysis
18 Which field uses chemistry to make medicines? A Environmental chemistry B Industrial chemistry C Medicinal chemistry D Physical chemistry
19 Which branch is most useful for studying chemical equilibrium? A Physical chemistry B Industrial chemistry C Environmental chemistry D Organic chemistry
20 Environmental chemistry studies: A Chemicals in space B Effects of chemicals on environment C Nuclear reactions D Organic reactions
21 What is chemistry mainly concerned with? A Study of stars B Study of matter and its changes C Study of plants D Study of motion
22 Which branch explains energy changes and reaction rates? A Organic chemistry B Physical chemistry C Industrial chemistry D Biochemistry
25 Which branch explains energy changes and reaction rates? A Organic chemistry B Physical chemistry C Bio chemistry D Environmental chemistry
28 Which branch of chemistry is most closely related to medicine? A Environmental chemistry B Biochemistry C Industrial chemistry D Physical chemistry
29 Chemistry is linked with technology because it: A Stops inventions B Provides new materials C Avoids experiments D Reduces knowledge
30 Which branch is concerned with chemical tests in laboratories? A Analytical chemistry B Industrial chemistry C Nuclear chemistry D Environmental chemistry