Acid Rain
Tested in 2 real MPSC questions across 1 year (2018–2018). See it in context on the interactive Concept Graph →
Years it was asked
What you need to know first
Basic chemistry of acids and bases
Real questions that test this
पर्जन्यस अम्ल पर्जन्य म्हणतात जेव्हा, pH चे मुल्य __________ असते. Rain is called acid rain, when its pH value is
a)(1) 7.0
b)(2) 8.3
c)(3) 7.9
d)(4) 5.6 पेक्षा कमी / Less than 5.6✓ Correct
Normal rain is slightly acidic due to dissolved CO2 with a pH of around 5.6. Rain with a pH value less than 5.6 is specifically termed acid rain.
कार्बन डायऑक्साइडची पाण्याबरोबर अभिक्रिया होऊन __________ हे बनते. When H2O (l) reacts with CO2 (g) it gives
a)(1) HCO3 (aq)
b)(2) H2CO3 (aq)✓ Correct
c)(3) H2CO2 (aq)
d)(4) H3CO3 (aq)
When carbon dioxide dissolves in water, it forms carbonic acid (H2CO3), a weak acid responsible for the acidic nature of carbonated water.