Test Bank forChemistry 11th Edition Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste.pdf

Test Bank for
Chemistry 11th Edition Steven S. Zumdahl, Susan A.
Zumdahl, Donald J. DeCoste

📘 Chemistry Test Bank (Practice)
✅ Questions 1–100 (One Set)




🔹 1–20: Basic Concepts
Q1. Which is a physical property?​
A. Flammability​
B. Density​
C. Reactivity​

✅
D. Toxicity​
Answer: B

Q2. SI unit of mass is:​
A. Gram​
B. Kilogram​
C. Liter​

✅
D. Meter​
Answer: B

Q3. Scientific notation of 0.00045:​
A. 4.5×10⁻³​
B. 4.5×10⁻⁴​
C. 4.5×10⁻⁵​

✅
D. 4.5×10⁻⁶​
Answer: B

Q4. Intensive property is:​
A. Mass​
B. Volume​
C. Temperature​

✅
D. Length​
Answer: C

,Q5. Accuracy refers to:​
A. Precision​
B. Closeness to true value​
C. Repeatability​

✅
D. Estimation​
Answer: B



Q6. Significant figures in 0.00450:​
A. 2​
B. 3​
C. 4​

✅
D. 5​
Answer: B

Q7. Density formula:​
A. m×v​
B. m/v​
C. v/m​

✅
D. m+v​
Answer: B

Q8. Matter is:​
A. Energy​
B. Anything with mass and volume​
C. Only solids​

✅
D. Only liquids​
Answer: B

Q9. Element is:​
A. Mixture​
B. Compound​
C. Pure substance​

✅
D. Solution​
Answer: C

Q10. Compound consists of:​
A. One element​
B. Two or more elements​
C. Mixture​

✅
D. Energy​
Answer: B

, Q11. Homogeneous mixture is:​
A. Uniform​
B. Non-uniform​
C. Solid only​

✅
D. Liquid only​
Answer: A

Q12. Heterogeneous mixture is:​
A. Uniform​
B. Non-uniform​
C. Gas only​

✅
D. Pure​
Answer: B

Q13. Chemical change involves:​
A. No new substance​
B. New substance​
C. Same material​

✅
D. Only energy​
Answer: B

Q14. Physical change involves:​
A. New substance​
B. No new substance​
C. Reaction​

✅
D. Combustion​
Answer: B

Q15. Law of conservation of mass:​
A. Mass increases​
B. Mass decreases​
C. Mass constant​

✅
D. Mass disappears​
Answer: C



Q16. Atomic theory proposed by:​
A. Newton​
B. Dalton​
C. Einstein​

✅
D. Bohr​
Answer: B