Question:
The normal rain water is slightly acidic and its $pH$ value is $56$ because of which one of the following ?
The normal rain water is slightly acidic and its $pH$ value is $56$ because of which one of the following ?
Updated On: Jul 6, 2024
- $CO _2+ H _2 O \rightarrow H _2 CO _3$
- $N _2 O _5+ H _2 O \rightarrow 2 HNO _3$
- $2 SO _2+ O _2+2 H _2 O \rightarrow 2 H _2 SO _4$
- $4 NO _2+ O _2+2 H _2 O \rightarrow 4 HNO _3$
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The Correct Option is A
Solution and Explanation
We are aware that normally rain water has a of due to the presence of ions formed by the reactions of rain water with carbon dioxide present in the atmosphere.
So , the correct option is (A) : $CO _2+ H _2 O \rightarrow H _2 CO _3$
So , the correct option is (A) : $CO _2+ H _2 O \rightarrow H _2 CO _3$
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Concepts Used:
Allotropes of Carbon
The existence of a chemical element in one or more physical forms happening in the same physical state is called Allotropes or allotropy. Allotropes may show different physical or chemical states turning on the atom arrangement or the number of existent atoms. While carbon and sulfur is the common element presenting allotropy. Carbon can make further allotropes due to its five-membered valency.
Read More: Allotropes of Carbon
Allotropes of Carbon:
Carbon is part of a p-block element.
- The atomic number of carbon = 6
- It belongs to group 14.
- It makes up about 18.5% of the human body by mass.
Carbon has only two types of allotropes, such as;
- Crystalline
- Amorphous
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- Fullerenes
The amorphous form of carbon consists of allotropes like;
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- Lampblack
- Gas carbon