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Questions and Answers
What is a homogeneous mixture?
What is a homogeneous mixture?
- A mixture where the components are evenly distributed (correct)
- A mixture with visible different phases
- A mixture with settling of components over time
- A mixture where the components can be easily separated
Which drug is commonly used in Cancer therapy?
Which drug is commonly used in Cancer therapy?
- Insulin
- Aspirin
- Penicillin
- Chemotherapy drugs (correct)
What is the difference between Precision and Accuracy?
What is the difference between Precision and Accuracy?
- Precision refers to how close a measurement is to the actual value, while Accuracy refers to the reproducibility of results. (correct)
- Precision refers to random errors, while Accuracy refers to systematic errors.
- Precision refers to how close a measurement is to the actual value, while Accuracy refers to random errors.
- Precision refers to systematic errors, while Accuracy refers to how close a measurement is to the actual value.
What is the relation between Kelvin scale and Celsius scale?
What is the relation between Kelvin scale and Celsius scale?
Which device is used in the laboratory to measure the volume of liquids or solutions?
Which device is used in the laboratory to measure the volume of liquids or solutions?
What is the characteristic property of gases among solids, liquids, and gases?
What is the characteristic property of gases among solids, liquids, and gases?
What is the oxidation number of oxygen in potassium superoxide (KO2)?
What is the oxidation number of oxygen in potassium superoxide (KO2)?
Which two decomposition reactions are NOT redox reactions?
Which two decomposition reactions are NOT redox reactions?
Which reaction involves an element existing in at least three oxidation states?
Which reaction involves an element existing in at least three oxidation states?
What is the correct oxidation number of sulphur in tetrathionate ion (S2O6^2-)?
What is the correct oxidation number of sulphur in tetrathionate ion (S2O6^2-)?
Which statement about halogens' displacement reactions in aqueous solutions is true?
Which statement about halogens' displacement reactions in aqueous solutions is true?
Which is not true about Boyle's Law?
Which is not true about Boyle's Law?
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