Podcast
Questions and Answers
Which of the following statements is NOT true about half-life of radioisotopes?
Which of the following statements is NOT true about half-life of radioisotopes?
- The faster the isotope decays the more stable it is (correct)
- The half-life is unique for any given isotopes
- The faster the isotope decays the more unstable it is
- Half-life is the time it takes for the amount of radioactivity to reduce 50%
1 becquerel is equivalent to ___
1 becquerel is equivalent to ___
- 2.7 x 10^-5 curie
- 2.7 x 10^-10 curie
- 2.7 x 10^-6 curie (correct)
- 2.7 x 10^-11 curie
Which type of radiation has no mass and no charge but has the greatest penetrating power?
Which type of radiation has no mass and no charge but has the greatest penetrating power?
- Alpha radiation
- Sun rays
- Beta radiation
- Gamma radiation (correct)
The effect of the radioactive particles passing through biological tissue would depend upon which of the following characteristics?
The effect of the radioactive particles passing through biological tissue would depend upon which of the following characteristics?
Which of the following is used as the unit of measure for radioactivity?
Which of the following is used as the unit of measure for radioactivity?
Petrolatum USP is NOT soluble in _______?
Petrolatum USP is NOT soluble in _______?
What is liberated when potassium permanganate is reacted with hydrochloric acid?
What is liberated when potassium permanganate is reacted with hydrochloric acid?
Which of the following phrases BEST describes the process of water undergoing electrolysis to form hydrogen and oxygen molecules?
Which of the following phrases BEST describes the process of water undergoing electrolysis to form hydrogen and oxygen molecules?
The following react with water forming an acid solution, EXCEPT:
The following react with water forming an acid solution, EXCEPT:
Which of the following refers to a kind of chemical reaction whereby a substance splits into simpler substances?
Which of the following refers to a kind of chemical reaction whereby a substance splits into simpler substances?
Which of the following statements best describes facilitated diffusion?
Which of the following statements best describes facilitated diffusion?
This allotrope of Phosphorous is made by heating phosphorus at 200 degrees Celsius under a pressure of 1,200 atm.
This allotrope of Phosphorous is made by heating phosphorus at 200 degrees Celsius under a pressure of 1,200 atm.
What happens to the water solubility of alcohols as the molecular weight increases?
What happens to the water solubility of alcohols as the molecular weight increases?
How does the polarity of alcohols change with an increase in the number of hydroxyl groups?
How does the polarity of alcohols change with an increase in the number of hydroxyl groups?
What happens to the water solubility of alcohols as the branching of the carbon chain increases?
What happens to the water solubility of alcohols as the branching of the carbon chain increases?
Which statement is correct about Mineral Oil USP?
Which statement is correct about Mineral Oil USP?
What is the correct description of surfactants?
What is the correct description of surfactants?
Which compound is formed when there is a combination of an electron donor and a metal forming a ring structure?
Which compound is formed when there is a combination of an electron donor and a metal forming a ring structure?
