The correct statement for peroxydisulfuric and dithionic acids from the following, is:
Peroxydisulfuric and Dithionic Acid Structures
The question asks us to identify the correct statement comparing the number of O-H bonds in peroxydisulfuric acid and dithionic acid.
Let's first look at the chemical formulas and structures of these two acids.
Peroxydisulfuric acid:
- Chemical formula: $\text{H}_2\text{S}_2\text{O}_8$
- This acid contains a peroxide bond (-O-O-).
- Its structure can be represented as $\text{H-O-S(=O)}_2\text{-O-O-S(=O)}_2\text{-O-H}$.
Let's count the O-H bonds in peroxydisulfuric acid from its structure:
$\text{H}\textbf{-O-S(=O)}_2\text{-O-O-S(=O)}_2\textbf{-O-H}$
There are two hydroxyl (-O-H) groups, one attached to each sulfur atom. Therefore, peroxydisulfuric acid has two O-H bonds.
Dithionic acid:
- Chemical formula: $\text{H}_2\text{S}_2\text{O}_6$
- This acid contains a direct sulfur-sulfur bond (S-S).
- Its structure can be represented as $\text{H-O-S(=O)}_2\text{-S(=O)}_2\text{-O-H}$.
Let's count the O-H bonds in dithionic acid from its structure:
$\text{H}\textbf{-O-S(=O)}_2\text{-S(=O)}_2\textbf{-O-H}$
There are two hydroxyl (-O-H) groups, one attached to each $\text{SO}_2$ group. Therefore, dithionic acid has two O-H bonds.
Comparing O-H Bonds
Based on the structural analysis:
- Peroxydisulfuric acid ($\text{H}_2\text{S}_2\text{O}_8$) has two O-H bonds.
- Dithionic acid ($\text{H}_2\text{S}_2\text{O}_6$) has two O-H bonds.
Therefore, both peroxydisulfuric acid and dithionic acid have two O-H bonds each.
Let's evaluate the given statements:
- Statement 1: "Each of these has two O-H bonds." - This matches our finding.
- Statement 2: "Peroxydisulfuric has one O-H bond and dithionic acid has two O-H bonds." - Incorrect, peroxydisulfuric acid has two.
- Statement 3: "Peroxydisulfuric has two O-H bonds and dithionic acid has one O-H bond" - Incorrect, dithionic acid has two.
- Statement 4: "Each of these has only one O-H bond" - Incorrect, both have two.
The correct statement is that each of these acids has two O-H bonds.
Important Questions from Transition Elements and Inner Transition Elements
Match the following:
Reaction Organo Metallic Catalyst 1. \(CH_2=C H_{2}+\frac{1}{2} O_{2} \rightarrow C H_{3}CHO\) i. $(Ph_3P)_3RhCl$ 2. \(C H_{3}OH+CO \rightarrow C H_{3}COOH\) ii. $Co_2(CO)_8$ 3. \(C H_{2}=C H_{2}+2CO+2 H_{2}O \rightarrow C H_{3}C H_{2}CHO\) iii. $[Rh(Co)_2I_2]^-$ 4.\(C H_{2}=C H_{2}+ H_{2} \rightarrow C H_{3}-C H_{3}\) iv. $[PdCl_4]^{2-}$
Choose the correct answer from the following:The correct statement(s) for oxygen from the following
A. The ground state for the O atom is 3P1.
B. Both the atom and the diatomic molecule are paramagnetic with two unpaired electrons.
C. The most readily accessible singlet excited state for dioxygen has an empty π* orbital.
is/are
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