जल चक्र में पानी का रासायनिक सूत्र क्या बना रहता है?
What remains the chemical formula of water throughout the hydrological cycle?
Explanation opens after your attempt
B. $H_2O$
Concept
During the water cycle, water only changes its physical state; its chemical formula always remains $H_2O$.
Why this answer is correct
The correct answer is B. $H_2O$. During the water cycle, water only changes its physical state; its chemical formula always remains $H_2O$.
Exam Tip
जल चक्र के दौरान पानी केवल अपनी भौतिक अवस्था बदलता है, उसका रासायनिक सूत्र हमेशा $H_2O$ ही रहता है।
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