D) only z45. A student takes 2 mL acetic acid, ina dry 49test tube and adds a pinch of sodiumhydrogen carbonate to it. He makes thefollowing observationI. A colourless and odourless gasevolves with a brisk effervescenceThe gas turns lime water milky whenpassed through it.II.IlI.The gas burns with an explosion whena burning splinter is brought near it.IV. the gas extinguishes the burning splin-ter that is brought near it.The correct observations are:(A) I, Il and Ill(C) IlI, IV andI (D) IV, I and II(B) Il, IlI and IV

D) only z45. A student takes 2 mL acetic acid, ina dry 49test tube and

1.	D) only z45. A student takes 2 mL acetic acid, ina dry 49test tube and adds a pinch of sodiumhydrogen carbonate to it. He makes thefollowing observationI. A colourless and odourless gasevolves with a brisk effervescenceThe gas turns lime water milky whenpassed through it.II.IlI.The gas burns with an explosion whena burning splinter is brought near it.IV. the gas extinguishes the burning splin-ter that is brought near it.The correct observations are:(A) I, Il and Ill(C) IlI, IV andI (D) IV, I and II(B) Il, IlI and IV
Answer» Like my answer if you find it useful!