Which statement about H2 S is true? (1) It is a covalent compound (2) It is a gas with bad smel

step 1 Which statement about H2S is true? There are four statements given and four options are given. T

Which statement about H2 S is true? (1) It is a covalent...

Which statement about $\mathrm{H}_{2} \mathrm{~S}$ is true?
(1) It is a covalent compound
(2) It is a gas with bad smell
(3) It is a weak base in water
(4) It is a stronger reducing agent than $\mathrm{H}_{2} \mathrm{O}$
(a) $1,2,3$
(b) $2,3,4$
(c) $1,3,4$
(d) $1,2,4$

Key Concepts

Covalent Bonding

Covalent bonding is a type of chemical bonding where atoms share electrons to attain a more stable electron configuration. In this context, understanding that certain molecules, including many hydrides, are formed by covalent bonds is fundamental to predicting their physical and chemical properties.

Volatility and Odor in Gaseous Compounds

The volatility of a substance refers to its tendency to vaporize, which often contributes to its ability to be detected by smell. Many covalent compounds that form gases, particularly those containing sulfur, are known for their distinctive and sometimes unpleasant odors. This concept is important when discussing the sensory properties of chemicals in their gaseous state.

Acid-Base Behavior in Aqueous Solutions

Acid-base behavior in water involves the donation or acceptance of protons (H+) by substances, leading to the formation of acids and bases. The presence of functional groups and molecular structure determines whether a compound behaves as an acid, a base, or is amphiprotic in water. Accurate characterization of a substance's acid-base nature is crucial in predicting its reactivity in aqueous environments.

Redox Properties and Reducing Agents

Redox (reduction-oxidation) chemistry deals with the transfer of electrons between chemical species. A reducing agent donates electrons during a chemical reaction, facilitating the reduction of another compound. Understanding the strength of a reducing agent, in comparison to other substances such as water, is key to predicting reaction pathways and the overall redox behavior in chemical processes.

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