ccccEsion/IMUG-Bench huggingface dataset:
Domain: Chemistry / gas_preparation

turn: 1
modality: image
input: Please generate a concise chemical laboratory bench scene: A substance is contained in a <beaker>. This substance must have the following observable appearance: <white solid powder, opaque, no visible luster>. The background should be a <clean laboratory bench with basic equipment outlines, avoiding clutter and text labels>.
output: evaluation_points: 1. The container generated in the image is correct and is indeed a beaker.

2. The color and appearance (white solid powder, opaque) of the target substance conforms to the description.

3. The substance is appropriately contained in the beaker, with a suitable quantity (e.g., filling about one-quarter to one-third of the beaker's volume).

The background is a clean laboratory bench with basic equipment outlines, avoiding clutter and text labels, as described in the turn 1 input text.

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 insoluble in water. 2) It reacts with dilute acids to produce a colorless gas that turns limewater milky. 3) It decomposes at high temperatures to produce a solid oxide and a colorless gas. Which of the following is the most likely identity of this substance?
Options:
A. Sodium Chloride (NaCl)
B. Calcium Carbonate (CaCO3)
C. Copper(II) Sulfate Pentahydrate (CuSO4·5H2O)
D. Sulfur (S)
E. None of the above
output: answer: B

turn: 3
modality: text
input: We will subsequently refer to the substance you identified in the previous question as the 'target substance'. Now, in the laboratory, the most suitable combination of reaction materials and conditions for preparing the gas from this target substance is:
Options:
A. Heating the target substance strongly in a crucible.
B. Reacting the target substance with concentrated sulfuric acid in a test tube.
C. Reacting the target substance with dilute hydrochloric acid at room temperature in a conical flask fitted with a delivery tube.
D. Electrolyzing an aqueous solution of the target substance.
E. None of the above
output: answer: C

turn: 4
modality: text
input: For the preparation and collection of the target gas, which of the following apparatus/steps are essential? (Select all that apply)
Options:
A. A gas generator (e.g., conical flask with stopper and delivery tube)
B. A drying tube filled with concentrated sulfuric acid
C. A water bath for heating
D. A gas collection bottle filled with water and inverted in a water trough (for downward displacement of water)
E. A Bunsen burner for strong heating
F. A safety funnel
G. None of the above
output: answer: A, D
Domain: Chemistry / gas_preparation

turn: 1
modality: text
input: Which of the following substances are characterized by being a colorless, acidic solution with a pungent odor, and are typically stored in glass or plastic containers due to their corrosive nature?
Options:
A. Concentrated sulfuric acid (H₂SO₄, 98%)
B. Dilute hydrochloric acid (HCl, ~1 M)
C. Sodium hydroxide solution (NaOH, 1 M)
D. Acetic acid solution (CH₃COOH, 5%)
E. Nitric acid (HNO₃, concentrated)
F. Ethanol (C₂H₅OH, 95%)
G. None of the above
output: answer: B, D

turn: 2
modality: image
input: It is known that the target substance is one of the correct options from the previous question and has the following additional property: it is a common laboratory acid that reacts vigorously with carbonates to produce a colorless gas. Please generate an image showing this target substance being stored correctly in its appropriate container and placed on a laboratory bench.
output: evaluation_points: 1. The container generated in the image is correct: it should be a glass reagent bottle with a plastic or glass stopper, clearly labeled.

2. The substance depicted is dilute hydrochloric acid. Its appearance should be that of a clear, colorless liquid, consistent with the description of a 'colorless solution' in turn 1.

3. The substance is contained within the bottle appropriately, filled to a suitable level (e.g., not overflowing, not nearly empty). There is no special storage requirement like immersion in oil.

4. The background is a simple laboratory bench scene, which may include other common lab items like a beaker or a notebook for context, but the focus is on the correctly stored reagent bottle.

turn: 3
modality: text
input: We will now refer to the substance you identified earlier as the 'target substance'. In the laboratory, what is the most suitable combination of reaction materials and conditions for preparing the gas form of this target substance?
Options:
A. Reacting sodium chloride (NaCl, solid) with concentrated sulfuric acid (H₂SO₄) and heating strongly.
B. Reacting sodium chloride (NaCl, solid) with dilute sulfuric acid (H₂SO₄) at room temperature.
C. Adding concentrated hydrochloric acid (HCl) to solid sodium sulfate (Na₂SO₄).
D. Adding concentrated hydrochloric acid (HCl) to solid sodium chloride (NaCl).
E. None of the above
output: answer: A

turn: 4
modality: text
input: For the preparation and collection of the target gas, which of the following apparatus/steps are essential?
Options:
A. A gas generation flask (e.g., round-bottom flask) fitted with a dropping funnel.
B. A gas washing bottle containing concentrated sulfuric acid for drying.
C. An upward displacement of air method (collecting the gas in an inverted jar).
D. A water bath to gently heat the reaction mixture.
E. A gas washing bottle containing sodium hydroxide solution for tail gas absorption.
F. A Bunsen burner for direct, strong heating of the reaction flask.
G. None of the above
output: answer: A, B, E
Domain: Chemistry / gas_preparation

turn: 1
modality: text
input: Which of the following substances are colorless, odorless gases at room temperature and pressure, and are lighter than air?
Options:
A. Chlorine gas (Cl₂)
B. Carbon dioxide (CO₂)
C. Hydrogen gas (H₂)
D. Ammonia gas (NH₃)
E. Oxygen gas (O₂)
F. Sulfur dioxide (SO₂)
G. None of the above
output: answer: CE

turn: 2
modality: image
input: The target substance is one of the correct options from the previous question. It is a gas that must be stored in an inverted container due to its low density. Please generate an image showing this target gas being stored correctly in its container and placed on a laboratory bench.
output: evaluation_points: 1. The container generated in the image is correct: an inverted gas collection bottle or gas jar, with its mouth sealed by a glass plate.

2. The substance depicted is hydrogen gas (H₂), which should be shown as a colorless, transparent gas filling the container. (The target substance is determined by the correct answer 'CE' from Turn 1, which includes hydrogen gas (H₂).)

3. The gas is correctly stored in an inverted position (mouth down) to prevent its escape, as it is lighter than air. The container should be shown as full or nearly full of the invisible gas. (This is required because the gas is lighter than air, as stated in Turn 1's question regarding colorless, odorless gases lighter than air.)

4. The background is a clean, simple laboratory bench scene.

turn: 3
modality: text
input: We will now refer to the substance you identified earlier as the 'target substance'. In the laboratory, which combination of reaction materials and conditions is most suitable for preparing the target gas?
Options:
A. Heating potassium permanganate (KMnO₄) crystals
B. Reacting zinc granules with dilute sulfuric acid (H₂SO₄) at room temperature
C. Heating a mixture of sodium chloride (NaCl) and concentrated sulfuric acid (H₂SO₄)
D. Electrolysis of acidified water using a Hoffman apparatus
E. None of the above
output: answer: B

turn: 4
modality: text
input: For the preparation and collection of the target gas, which of the following apparatus/steps are essential?
Options:
A. A gas generator (e.g., conical flask with thistle funnel and delivery tube)
B. A gas washing bottle containing concentrated sulfuric acid for drying
C. An upright gas collection bottle filled with water for downward displacement of water
D. A Bunsen burner for heating the reaction mixture
E. A safety device (e.g., water seal or empty bottle) to prevent suck-back
F. A gas collection bottle filled with sodium hydroxide solution for absorption
G. None of the above
output: answer: ABE
Domain: Chemistry / gas_preparation

turn: 1
modality: image
input: Please generate a concise chemical laboratory bench scene: A <gas cylinder with a pressure regulator valve> contains a substance. This substance should have the following observable appearance: <a pale yellow-green colored gas, visible as a colored gas filling the container, not a solid or liquid>. The background should be a <clean laboratory bench environment with basic equipment outlines, avoiding clutter and text labels>.
output: evaluation_points: 1. The generated container is correct and is indeed a <gas cylinder with a pressure regulator valve>.

The color and appearance of the target substance (a colored gas) conforms to the description in Turn 1 input: 'a pale yellow-green colored gas, visible as a colored gas filling the container'.

The substance is correctly contained in the gas cylinder, with the valve closed to indicate safe storage, and the gas is depicted as filling the cylinder appropriately.

The background is a clean laboratory bench environment with basic equipment outlines, avoiding clutter and text labels, as required in Turn 1 input.

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 denser than air. 2. It is moderately soluble in water, forming an acidic solution. 3. It is a strong oxidizing agent.>, please select from the following options which substance it most likely is:

A. Nitrogen gas (N2)
B. Oxygen gas (O2)
C. Chlorine gas (Cl2)
D. Carbon dioxide gas (CO2)
E. None of the above
output: answer: C

turn: 3
modality: text
input: We will subsequently refer to the substance you guessed in the previous text as the 'target substance'. Now, to prepare the target substance gas in the laboratory, the most appropriate combination of reaction starting materials and reaction conditions is:

A. Heating potassium chlorate (KClO3) with manganese dioxide (MnO2) as a catalyst.
B. The reaction of concentrated hydrochloric acid (HCl) with manganese dioxide (MnO2) with gentle heating.
C. The electrolysis of a concentrated aqueous sodium chloride (NaCl) solution.
D. The thermal decomposition of calcium carbonate (CaCO3).
E. None of the above
output: answer: B

turn: 4
modality: text
input: For the preparation and collection of the target gas, which of the following apparatus/steps are essential? (Select all that apply)

A. A round-bottom flask with a dropping funnel.
B. A gas washing bottle containing concentrated sulfuric acid for drying.
C. A water bath for heating.
D. An upward displacement of air method for collection (collecting the gas in an inverted jar).
E. A gas washing bottle containing a sodium hydroxide solution for tail gas treatment.
F. A Bunsen burner for strong heating.
G. None of the above
output: answer: A, B, D, E
Domain: Chemistry / gas_preparation

turn: 1
modality: text
input: Which of the following substances are consistent with the description: 'A solid at room temperature with a characteristic color, which sublimes upon heating'?

Options:
A. Potassium permanganate (KMnO4, purple-black crystals)
B. Sulfur (S, yellow powder)
C. Iodine (I2, violet-black crystals)
D. Copper(II) sulfate pentahydrate (CuSO4·5H2O, blue crystals)
E. Sodium chloride (NaCl, white crystals)
F. Carbon dioxide (CO2, colorless gas)
G. None of the above
output: answer: B, C

turn: 2
modality: image
input: The target substance is one of the correct options from the previous question and has the following additional property: 'It must be stored in a sealed, light-resistant container to prevent sublimation and photochemical decomposition.' Please generate an image showing this target substance stored correctly in its container and placed on a laboratory bench.
output: evaluation_points: 1. The container generated is correct: a sealed, amber glass bottle or a brown glass bottle with a tight-fitting stopper.

The substance generated is indeed iodine: it should appear as violet-black, metallic-looking crystals or flakes, consistent with the description in Turn 1.

The substance is correctly contained within the sealed bottle, with an appropriate amount (e.g., filling no more than half to two-thirds of the bottle's volume).

The background is a simple laboratory bench scene, as required by the Turn 2 input text.

turn: 3
modality: text
input: We will now refer to the substance you identified earlier as the 'target substance.' In the laboratory, the most suitable combination of starting materials and reaction conditions for preparing the gaseous form of the target substance is:

Options:
A. Heating solid potassium iodide (KI) with concentrated sulfuric acid (H2SO4).
B. Adding manganese dioxide (MnO2) to a concentrated hydrochloric acid (HCl) solution and heating.
C. Heating solid ammonium chloride (NH4Cl) with solid calcium hydroxide (Ca(OH)2).
D. Adding solid potassium permanganate (KMnO4) to a concentrated hydrochloric acid (HCl) solution at room temperature.
E. None of the above.
output: answer: A

turn: 4
modality: text
input: For the preparation and collection of the target gas, which of the following apparatus/steps are essential?

Options:
A. A round-bottom flask fitted with a dropping funnel.
B. A gas washing bottle containing concentrated sulfuric acid (for drying).
C. A gas collection bottle filled with water and inverted in a water trough (for downward displacement of water).
D. A gas washing bottle containing a sodium hydroxide (NaOH) solution (for absorbing excess toxic gas).
E. A Bunsen burner or heating mantle.
F. A drying tube packed with anhydrous calcium chloride (CaCl2).
G. None of the above.
output: answer: A, B, D, E
Domain: Chemistry / gas_preparation

turn: 1
modality: image
input: Generate a single element cell from the periodic table. The element must satisfy the following criteria: It is a soft, silvery-white metal that reacts violently with water. It is located in the third period and belongs to Group 1 (Alkali Metals). The cell should contain the correct element symbol in the center and the correct atomic number in the top-right corner.
output: evaluation_points: 1. The generated content should resemble a single cell from the periodic table in form and style.

2. The element symbol 'Na' must be correctly centered within the cell.

3. The atomic number '11' must be correctly placed in the top-right corner of the cell.

4. The image should be clean, flat in style, and contain no content other than the single periodic table cell.

turn: 2
modality: text
input: Based on the element symbol and atomic number from the previous image, determine the following: If this element can combine with oxygen (O) to form a compound, and this compound is a pale yellow solid that reacts vigorously with water to produce a strong base and release oxygen gas, what is the most likely compound formed?

Options:
A. Sodium oxide (Na2O)
B. Sodium peroxide (Na2O2)
C. Sodium superoxide (NaO2)
D. Sodium hydroxide (NaOH)
E. None of the above
output: answer: B

turn: 3
modality: text
input: We will now refer to the substance you identified as the 'target substance'. In a laboratory setting, what is the most appropriate combination of starting materials and reaction conditions for preparing the gas produced when this target substance reacts with water?

Options:
A. Heating sodium nitrate (NaNO3) with concentrated sulfuric acid (H2SO4)
B. Reacting the target substance (a pale yellow solid) with cold water
C. Electrolysis of a dilute aqueous sodium chloride (NaCl) solution
D. Decomposing potassium chlorate (KClO3) with manganese dioxide (MnO2) as a catalyst
E. None of the above
output: answer: B

turn: 4
modality: text
input: For the preparation and collection of the target gas (oxygen) from the reaction in the previous question, which of the following apparatus or steps are essential? Select all that apply.

Options:
A. A round-bottom flask fitted with a dropping funnel
B. A gas washing bottle containing concentrated sulfuric acid for drying
C. A water bath to control the reaction temperature
D. A gas collection bottle, initially filled with water, for downward displacement of water
E. A safety funnel to prevent suck-back
F. A Bunsen burner to provide heat for the reaction
G. None of the above
output: answer: A, D, E
Domain: Chemistry / gas_preparation

turn: 1
modality: image
input: Please generate a concise chemical laboratory bench scene: A substance is contained in a <wide-mouth glass reagent bottle>. The substance must satisfy the following observable appearance description: <black solid powder, opaque, with no metallic luster>. The background should be a <laboratory environment: bench surface with basic equipment outlines, avoid clutter and text labels>.
output: evaluation_points: 1. The container generated is correct: a wide-mouth glass reagent bottle.

2. The target substance's color and appearance (black solid powder, opaque) matches the description.

3. The substance is appropriately contained in the bottle (dry, not in any special storage medium) and the quantity is suitable (e.g., filling about one-third to half of the bottle).

4. The background is a simple laboratory bench scene with basic equipment outlines.

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 common catalyst for the decomposition of hydrogen peroxide. 2. It is insoluble in water. 3. It reacts with concentrated hydrochloric acid upon heating to produce a greenish-yellow gas.>, which of the following substances is it most likely to be?

Options:
A. Copper(II) oxide (CuO, black powder)
B. Activated charcoal (C, black powder)
C. Manganese(IV) oxide (MnO2, black powder)
D. Iron(III) oxide (Fe2O3, reddish-brown powder)
E. None of the above
output: answer: C

turn: 3
modality: text
input: We will subsequently refer to the substance you guessed in the previous context as the 'target substance'. To prepare the gas of this target substance in the laboratory, which combination of reaction raw materials and conditions is most appropriate?

Options:
A. Heating potassium permanganate (KMnO4) crystals
B. Reacting the target substance (solid) with concentrated hydrochloric acid (HCl) and heating gently
C. Electrolysis of an aqueous sodium chloride (NaCl) solution
D. Reacting calcium carbonate (CaCO3) with dilute sulfuric acid (H2SO4)
E. None of the above
output: answer: B

turn: 4
modality: text
input: For the preparation and collection of the target gas, which of the following apparatus/steps are essential? (Select all that apply)

Options:
A. Round-bottom flask with a dropping funnel
B. Water bath for heating
C. Gas washing bottle containing concentrated sulfuric acid (for drying)
D. Upward displacement of air collection method (for a gas denser than air)
E. Safety funnel or an apparatus to prevent suck-back
F. Bunsen burner for strong heating
G. None of the above
output: answer: A, C, D, E
Domain: Chemistry / gas_preparation

turn: 1
modality: text
input: Which of the following substances are black solids at room temperature and insoluble in water? (Select all that apply)

A. Copper(II) oxide (CuO)
B. Sodium chloride (NaCl)
C. Sulfur (S)
D. Manganese dioxide (MnO₂)
E. Calcium carbonate (CaCO₃)
F. Iron(III) oxide (Fe₂O₃)
G. None of the above
output: answer: A, D

turn: 2
modality: image
input: The target substance is one of the correct answers from the previous question. It is a black, powdery solid that is stable in air and does not require special storage conditions. Please generate an image showing this target substance stored correctly in its appropriate container and placed on a laboratory bench.
output: evaluation_points: 1. The container generated is correct: a clean, dry, wide-mouth glass reagent bottle with a stopper or screw cap.

2. The substance generated is indeed a black, fine powder, consistent with the description 'black, powdery solid'.

3. The substance is loosely contained within the bottle, not overfilled, and the bottle is properly sealed. No special storage medium (like oil) is present, as it is stable in air.

4. The background is a simple, uncluttered laboratory bench scene.

turn: 3
modality: text
input: We will now refer to the substance you identified earlier as the 'target substance'. In the laboratory, the most suitable combination of starting materials and reaction conditions to prepare the gas produced from the thermal decomposition of this target substance is:

A. Heating copper(II) oxide (CuO) strongly in a test tube.
B. Reacting copper(II) oxide (CuO) with dilute sulfuric acid (H₂SO₄) at room temperature.
C. Heating copper(II) carbonate (CuCO₃) strongly in a test tube.
D. Electrolyzing an aqueous solution of copper(II) sulfate (CuSO₄).
E. None of the above.
output: answer: C

turn: 4
modality: text
input: For the preparation and collection of the target gas (carbon dioxide) from the thermal decomposition reaction identified in the previous question, which of the following apparatus/steps are essential? (Select all that apply)

A. A hard glass test tube and a Bunsen burner.
B. A delivery tube.
C. A gas jar or an inverted measuring cylinder filled with water for collection.
D. A drying tower containing concentrated sulfuric acid (H₂SO₄).
E. A water bath to control the reaction temperature.
F. A safety flask (e.g., Wolff bottle) to prevent suck-back.
G. None of the above.
output: answer: A, B, C