Consider the following pairs: 1. Acid left by bee sting of honey bee | HCL 2. Atmosphere of Venus | H2SO4 3. Antacid | Methanoic Acid How many of the above pairs are correctly matched?

Acid in Bee Sting

• The main acid left by a honey bee sting is formic acid (HCOOH). Hence, Statement 1 is incorrect.
• Effects: Causes pain, burning sensation, and inflammation.
• Other Venom Components: Includes proteins, peptides like melittin, and enzymes such as phospholipase A2

Atmospheric Composition

• Carbon Dioxide (CO₂) and H2SO4: Hence, statement 2 is correct.
• Nitrogen (N₂): Around 3.5% of the atmosphere is nitrogen.
• Trace Gases: Includes small amounts of other gases like sulphur dioxide (SO₂) and water vapor (H₂O).
• Methanoic Acid (Formic Acid)
• Formula: HCOOH
• Nature: A simple carboxylic acid with a pungent odor. It is a colorless liquid that is soluble in water.
• Hence, Statement 3 is incorrect. Antacids are medicines that relieve heartburn and indigestion by reducing the amount of acid in your stomach. Marketed antacids contain salts of aluminium, calcium, magnesium and sodium.