That sounds like a description of Venus.
Your thinking of Venus which does have a high Co2 atmosphere and sulphuric rain. Mars has very little atmosphere.
Jupiter
Venus has a poisonous atmosphere composed mainly of carbon dioxide with traces of sulfuric acid.
Venus is primarily composed of a rocky mantle and iron core, similar to Earth. Its atmosphere is composed mainly of carbon dioxide with clouds of sulfuric acid. The surface of Venus is covered with volcanoes, lava flows, and impact craters.
Rocky surface but very gaseous atmosphere.
The atmosphere of Venus is mostly composed of carbon dioxide (CO2), with trace amounts of nitrogen and sulfuric acid droplets.
The atmosphere of Mars is primarily composed of carbon dioxide, making it a greenhouse gas that contributes to the planet's temperature regulation.
Iron and rocks much like the crust of the earth.
The atmosphere of Venus is the layer of gases surrounding Venus. It is composed primarily of carbon dioxide and is much denser and hotter than that of Earth.
Venus has a thick atmosphere composed mainly of carbon dioxide with clouds of sulfuric acid.
the earth first atmosphere is troposphere
Venus has a thick atmosphere composed mainly of carbon dioxide with clouds of sulfuric acid. The atmospheric pressure on Venus is about 92 times that of Earth's sea level pressure, and the surface temperature can reach up to 900 degrees Fahrenheit (475 degrees Celsius) due to the intense greenhouse effect.