Domain: Chemistry / apparatus_usage

turn: 1
modality: image
input: Generate a concise chemical laboratory bench scene: A <correct and appropriate laboratory container type> contains a substance. The substance must exhibit the following observable characteristics: It is a <colorless, clear, transparent liquid>. The background should be a <laboratory environment: bench surface, outlines of basic equipment only, avoid clutter and text labels>.
output: evaluation_points: 1. The container generated in the image is correct and is indeed the <glass reagent bottle with a ground glass stopper> mentioned in the prompt.

2. The color and physical form (liquid) of the target substance conform to the description '<colorless, clear, transparent liquid>'.

3. The substance is contained in the bottle in a suitable amount, and the bottle is properly sealed with its stopper.

4. The background is a simple laboratory bench scene.

turn: 2
modality: text
input: Based on the appearance of the substance in the input image, and given that this substance is known to have the following properties: (1) It is a strong monoprotic acid. (2) Its concentrated aqueous solution fumes in moist air. (3) It reacts vigorously with many metals to produce hydrogen gas. Please select from the following options the substance it most likely is:

A. Concentrated Sulfuric Acid (H₂SO₄)
B. Dilute Nitric Acid (HNO₃)
C. Concentrated Hydrochloric Acid (HCl)
D. Acetic Acid (CH₃COOH)
E. None of the above
output: answer: C

turn: 3
modality: image
input: We will subsequently refer to the substance you identified earlier as the 'target substance'. The reaction of the target substance with sodium hydroxide (NaOH) to produce sodium chloride (NaCl) and water (H₂O) requires the use of a <burette> for precise titration. Please generate an image representing the correct use of this instrument in this reaction scenario. The background is a simple laboratory bench.
output: evaluation_points: 1. The image correctly depicts a <burette>, and its placement (clamped to a stand, positioned above an Erlenmeyer flask) is reasonable.

2. The reaction setup and reagents (e.g., an Erlenmeyer flask likely containing a solution with an indicator, the burette containing the acidic solution) are consistent with the described acid-base titration reaction (the target substance, identified as concentrated hydrochloric acid (HCl), reacting with sodium hydroxide (NaOH)).

3. The <burette> is shown being used correctly: the stopcock is accessible for control, the tip is positioned inside the receiving flask's neck to prevent splashing, and the initial volume reading is visible.

4. The background is a simple laboratory bench scene.

turn: 4
modality: text
input: Based on the instrument and operational scene in the input image, judge which of the following statements about this instrument and its usage protocols are correct:

A. It is primarily used for the precise measurement and delivery of variable volumes of liquid.
B. Before filling, it should be rinsed with the solution it will contain.
C. When reading the meniscus, the eye should be level with the bottom of the meniscus.
D. It is acceptable to drain liquid quickly through the stopcock to save time during a titration.
E. Air bubbles trapped in the tip must be removed before taking an initial reading.
F. The zero mark is always at the top of the scale.
G. None of the above
output: answer: A, B, C, E