Domain: Chemistry / apparatus_usage

turn: 1
modality: image
input: Please generate a concise chemical laboratory bench scene: A substance is contained in a <brown glass reagent bottle with a ground glass stopper>. The substance must satisfy the following observable appearance description: It is a <colorless, transparent liquid>. The background should be a <laboratory environment: a bench with basic equipment outlines, avoiding clutter and text labels>.
output: evaluation_points: 1. The generated container is correct and is indeed a brown glass reagent bottle with a ground glass stopper.

2. The color and appearance (a colorless, transparent liquid) of the target substance conform to the description.

3. The substance is stored in a container suitable for light-sensitive materials, and the fill level is appropriate (e.g., not overflowing, not nearly empty).

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 oxidizing agent. 2. It is miscible with water in all proportions, releasing heat. 3. Its pure form is unstable and decomposes upon exposure to light, often requiring storage in dark containers. Which of the following substances is it most likely to be?

Options:
A. Concentrated Sulfuric Acid (H2SO4)
B. Dilute Hydrochloric Acid (HCl)
C. Nitric Acid (HNO3)
D. Ethanol (C2H5OH)
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 sodium nitrate with concentrated sulfuric acid under heating>, the laboratory instrument <a distillation setup with a round-bottom flask, condenser, and receiving flask> is used. Please generate an image representing the correct use of this instrument in this reaction. The background is a simple laboratory bench.
output: evaluation_points: 1. The generating correctly depicts a distillation setup, including a round-bottom flask, a condenser, and a receiving flask, with reasonable placement.

2. The depicted reaction and conditions (heating a mixture in the round-bottom flask, vapor condensation) are consistent with the described preparation of nitric acid from sodium nitrate and concentrated sulfuric acid.

3. The use of the distillation apparatus complies with correct operational and safety standards (e.g., secure connections, proper water flow direction in the condenser, appropriate positioning of the heat source).

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

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

Options:
A. The primary purpose of this setup is for separating mixtures based on differences in boiling points.
B. The cooling water for the condenser should enter from the lower inlet and exit from the upper outlet.
C. The receiving flask should be securely sealed to the condenser outlet to prevent vapor leakage.
D. It is acceptable to distill to dryness to ensure complete product recovery.
E. This setup is suitable for the distillation of highly volatile and flammable liquids without any additional modifications.
F. The thermometer, if present, should have its bulb positioned at the junction of the condenser and the distillation head.
G. None of the above is correct.
output: answer: A, B, F