Which of the Following Conclusions Concerning the Concentration-Time Plot Provided

question 58

Multiple Choice

Which of the following conclusions concerning the concentration-time plot provided below is/are correct?
1) The concentration of substance D is decreasing over time.
2) The instantaneous reaction rate at point A is less than the instantaneous reaction rate at point B.
3) Substance D is a product of the reaction.

• A) 1 only
• B) 2 only
• C) 3 only
• D) 1 and 3
• E) 1,2,and 3

---

Definitions:

Electromagnetic Spectrum

The range of all types of electromagnetic radiation, including gamma rays, X-rays, ultraviolet light, visible light, infrared light, microwaves, and radio waves, each varying in wavelength and energy.

Electromagnetic Radiation

A form of energy that is propagated through space or matter, including radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays.

Absorption

The process by which one substance takes up or takes in another substance, at the molecular or ionic level.

Frequency

The number of occurrences of a repeating event per unit of time, often used in the context of waves (e.g., sound waves, electromagnetic waves).