Question

Which of the following set of transition metals have high volatility?

• A. Ti, Zn and Hf
• B. Cr, Mo and W
• C. Mn, Tc and Re
• D. Fe, Ru and Os
• E. Zn, Cd and Hg

Answer 1

Answer: (E)

Among the given options, Zn (Zinc), Cd (Cadmium), and Hg (Mercury)} have high volatility. These elements are lighter and more prone to evaporate compared to other transition metals. Specifically, mercury is a liquid at room temperature and has high volatility, while zinc and cadmium also possess relatively higher vapor pressures compared to other transition metals.

The correct option is (E) : Zn, Cd and Hg

Answer 2

The correct answer is Zn, Cd and Hg. Here's why:

• Zn, Cd and Hg: These metals belong to the group of metals that exhibit relatively high volatility compared to other transition metals. Mercury (Hg), in particular, is a liquid at room temperature, and both zinc (Zn) and cadmium (Cd) have relatively low boiling points among the transition metals, making them more volatile.
• Ti, Zn and Hf: Titanium (Ti) and Hafnium (Hf) have very high melting and boiling points, and they are not particularly volatile. Zinc is the only one with moderate volatility in this set, so this group does not have high volatility.
• Cr, Mo and W: Chromium (Cr), Molybdenum (Mo), and Tungsten (W) are all transition metals with high melting and boiling points, indicating low volatility. They are typically used in high-temperature applications due to their stability, not for their volatility.
• Mn, Tc and Re: Manganese (Mn), Technetium (Tc), and Rhenium (Re) also have high melting points and low volatility, making them unsuitable for high-volatility applications.
• Fe, Ru and Os: Iron (Fe), Ruthenium (Ru), and Osmium (Os) have high melting and boiling points as well, and are not considered volatile. Osmium, in particular, is a very dense and non-volatile metal.

Conclusion: The set Zn, Cd, and Hg has the highest volatility among the given options.