English STEM and general-subject questions, answers and explanations with formulas, images and multiple answer structures for educational Q&A evaluation.
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Questions and answers may include text, formulas or diagrams for retrieval and solution-process evaluation. Six HTML attachments supply reviewed text projections and question images. Image alt/OCR text may be incomplete; confirm explanation coverage per batch.
Includes high-school and university content; Select subject, answer type and media requirements; OCR and explanations are not present in every record
6 preview records · 4 image excerpts · dictionary and README. Confirm the full delivery version before ordering.
Use limited excerpts to inspect content and structure. The README identifies provenance, field projections and preview limits.
| sample_id | question_excerpt | solution_steps | final_answer |
|---|---|---|---|
| q110716162 | Question Use curved arrows to show the mechanism of the step below. If more than one resonance form of the product is possible, show the most stable form. Where two products can be… | Step 1 Dear Student Kindly refer to the solution. Explanation: The reaction mentioned here is an example of Friedal -craft acylation reaction which is an electrophilic substitution… | Final Answer The ortho substituted product is a minor product due to steric repulsions. The para substituted product thus acts as a major product in the reaction due to less steric… |
| q118733194 | Question (a) Draw a valid structure that contains one 3° alcohol, one 2° amine, a 1° halide, only one chiral carbon, and has the formula C 11 H 14 BrNO. (b) Name the molecule you d… | Step 1 Given The molecular formula Formula for degree of unsaturation of a molecule = Therefore the degree of unsaturation of the molecule = It means molecules have five multiple b… | Final Answer Answer: A valid structure that contains one 3° alcohol, one 2° amine, a 1° halide, only one chiral carbon, and has the formula NH OH Br (S)-3-(2-bromoethyl)-1,2,3,4-t… |
| q61168901 | Question Return to (The following information applies to the questions displayed below.] Carolina Corporation, an S corporation, has n | Step 1 Gain Recognized $63,200 Stock basis $0 Land basis $81,200 If any doubt ask me in the comment box Explanation: Please check answers in this step Step 2 If any doubt ask me i… | Final Answer Gain Recognized $63,200 Stock basis $0 Land basis $81,200 ==================== Dear Student if you have any Queries or Explanations please ask me in the comment box.i … |
6 preview records · 4 image excerpts · dictionary and README
ZIP · 160.6 KB · Includes Chinese and English README
Verified and requested fields are identified in the kit; exact structure depends on the confirmed delivery version.
| Field / content | Type | Description |
|---|---|---|
| 题目 ID | 参考字段 | 题目公开标识 精确名称、类型和空值规则按样例及交付批次确认。 |
| 题目描述 | 参考字段 | 题干正文或附件已有的 alt/OCR 文本 精确名称、类型和空值规则按样例及交付批次确认。 |
| 答案 | 参考字段 | 原始回答正文 精确名称、类型和空值规则按样例及交付批次确认。 |
| 解析 | 参考字段 | 按顺序保留的解题步骤，可能缺失 精确名称、类型和空值规则按样例及交付批次确认。 |
| 图片文件 | 参考字段 | 与题干、步骤相关的图像 精确名称、类型和空值规则按样例及交付批次确认。 |
| 学科 | 参考字段 | 题目所属学科 精确名称、类型和空值规则按样例及交付批次确认。 |
| 答案类型 | 参考字段 | 多段解析、HTML、纯文本等回答结构 精确名称、类型和空值规则按样例及交付批次确认。 |
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6 preview records · 4 image excerpts · dictionary and README. The public kit is for preview evaluation. Full data requires a confirmed version and delivery list.
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