Domain: Chemistry / apparatus_usage

turn: 1
modality: image
input: Please generate a concise chemical laboratory bench scene: A <gas cylinder> contains a substance. This substance must have the following observable appearance: It is a colorless, odorless gas. The gas is contained within the cylinder, which should be upright and securely fastened. The background should be a simple laboratory environment: a bench surface with outlines of basic equipment, avoiding clutter and text labels.
output: evaluation_points: 1. The container generated in the image is correct; it is indeed a <gas cylinder>.

2. The target substance's appearance (colorless gas) conforms to the described 'colorless, odorless gas'.

3. The substance is correctly contained within the cylinder (the cylinder valve is closed, and the cylinder is upright and secured). The amount of gas is appropriate for the cylinder's size.

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 has the following properties: (1) It is the lightest element in the periodic table. (2) It is highly flammable and can react explosively with oxygen in the air. (3) It is sparingly soluble in water. Which of the following substances is it most likely to be?

Options:
A. Carbon Dioxide (CO2)
B. Nitrogen (N2)
C. Hydrogen (H2)
D. Helium (He)
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'. When <preparing the target substance by reacting zinc granules with dilute hydrochloric acid>, the laboratory apparatus <gas collection apparatus using the downward displacement of water> is used. Please generate an image depicting the correct use of this apparatus in this reaction. The background is a simple laboratory bench.
output: evaluation_points: 1. The image correctly depicts the <gas collection apparatus using the downward displacement of water> (including a gas delivery tube, a water-filled trough, and an inverted gas jar/measuring cylinder), and the apparatus is positioned reasonably on the bench.

2. The reaction setup shown (e.g., a flask with a delivery tube, likely containing zinc and acid) is consistent with the described reaction <preparing hydrogen gas by reacting zinc with dilute hydrochloric acid>.

3. The use of the <gas collection apparatus> conforms to correct usage, placement norms, and safety standards (e.g., the gas delivery tube is correctly inserted into the inverted jar under water, the jar is initially full of water and free of air bubbles).

The background is a simple laboratory bench scene, consistent with the background in the Turn 1 output image.

turn: 4
modality: text
input: Based on the apparatus and operational scene in the input image, determine which of the following statements regarding this apparatus and its usage norms are correct.

Options:
A. This method is suitable for collecting gases that are denser than air.
B. This method is suitable for collecting gases that are highly soluble in water.
C. The gas jar must be completely filled with water and free of air bubbles before collection begins.
D. The gas delivery tube should be inserted into the gas jar after the reaction has produced gas for several minutes.
E. This apparatus is primarily used for the purification of gases.
F. The collected gas can be tested by bringing a burning splint near the mouth of the gas jar.
G. None of the above are correct.
output: answer: C, F