Which of the Following Reactions Is a Good Small-Scale Laboratory

question 8

Multiple Choice

Which of the following reactions is a good small-scale laboratory method for preparation of hydrogen?

• A) CH₄(g) + H₂O(g)  CO(g) + 3H₂(g)
• B) 3FeCl₂(s) + 4H₂O(g)  Fe₃O₄(s) + 6HCl(g) + H₂(g)
• C) NaH(s) + H₂O(l)  NaOH(aq) + H₂(g)
• D) CO(g) + H₂O (g)  CO₂(g) + H₂(g)
• E) None of the above methods is useful.

---

Definitions:

Reproductive Isolating Mechanisms

Reproductive isolating mechanisms are biological features of organisms that prevent species from interbreeding, thereby maintaining species separateness.

Interbreeding

The mating or crossing of two individuals from different populations, species, or varieties, leading to the production of offspring.

Species

A group of organisms capable of interbreeding and producing fertile offspring, sharing common characteristics and genetic makeup.

Allopatric Speciation

A form of speciation that occurs when biological populations of the same species become isolated from each other to an extent that prevents genetic interchange.