Given below are two statements:
Statement (I): \(\textit{An element in the extreme left of the periodic table forms acidic oxides.}\)
Statement (II):\( \textit{Acid is formed during the reaction between water and oxide of a reactive element present in the extreme right of the periodic table.} In the light of the above statements, choose the correct answer from the options given below:\)
Given below are two statements:
Statement (I): \(\textit{An element in the extreme left of the periodic table forms acidic oxides.}\)
Statement (II):\( \textit{Acid is formed during the reaction between water and oxide of a reactive element present in the extreme right of the periodic table.} In the light of the above statements, choose the correct answer from the options given below:\)
Show Hint
- Both Statement I and Statement II are false
- Statement I is true but Statement II is false
- Statement I is false but Statement II is true
- Both Statement I and Statement II are true
The Correct Option is C
Approach Solution - 1
To evaluate the correctness of the given statements, we need to understand the chemical nature of oxides formed by elements based on their position in the periodic table:
- Statement I: "An element in the extreme left of the periodic table forms acidic oxides."
- The elements on the extreme left of the periodic table are primarily metals belonging to groups 1 and 2, such as alkali metals and alkaline earth metals. These metals typically form basic oxides, not acidic oxides.
- On the other hand, elements on the extreme right of the periodic table (non-metals) typically form acidic oxides. Therefore, Statement I is incorrect.
- Statement II: "Acid is formed during the reaction between water and oxide of a reactive element present in the extreme right of the periodic table."
- The elements on the extreme right of the periodic table are non-metals and typically form acidic oxides.
- For example, sulfur dioxide (\( \text{SO}_2 \)) reacts with water to form sulfurous acid (\( \text{H}_2\text{SO}_3 \)), and carbon dioxide (\( \text{CO}_2 \)) reacts with water to form carbonic acid (\( \text{H}_2\text{CO}_3 \)). This characteristic confirms Statement II is true.
Based on the above analysis, the correct answer is: Statement I is false but Statement II is true.
Approach Solution -2
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Consider the following oxides:
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Statement II : Among $Na_2O, Al_2O_3, CO$ and $Cl_2O_7$, the most basic and acidic oxides are $Na_2O$ and $Cl_2O_7$, respectively.
In the light of the above statements, choose the correct answer from the options given below :
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