Question

Radon (22Rn), a dense, noble gas, is commonly found in basements in some areas of the United States. Radon is a daughter of 238U decay. Which statement about radon is not correct? Select one: a. Radon levels in a basement can be detected and analyzed by radon detectors. b. Radon emits a particles. C. 222Rn, when ingested, changes to polonium (218Po), a solid. This is normally flushed out of the body. d. Radon levels in a basement can be controlled by ventilation and proper level monitoring. A spontaneous process is a process that Select one: a. occurs by itself at a rapid rate. b. does not occur by itself c.occurs by itself without any intervention d. occurs by itself at a slow pace.

Answer 1

Option(A) is correct. This is incorrect statement.

2. Spontaneous process occurs itself. (A) is correct option.

3. (C) is correct answer.

At anode oxidation of Ag takes place and at cathode reduction takes place.