辽宁鞍山高三上（质检Ⅰ）-化学试题+答案
2023-2024学年度高三第一次质量监测化学科参考答案及阅卷标准一、选择题1-56-1011-15ACDCCBABDABCDCB二、填空题16．（14分）（1）O（1分）6（1分）取少量样品配成溶液后，加入KSCN溶液，若未见红色则证明Fe(III)为内界一部分（2分）；（2）抑制硫酸亚铁水解（1分）；（3）玻璃拉丝（或提供玻璃碎屑）作为晶核使沉淀更易析出（2分）；盐酸和氯化钡溶液（2分）（4）H2O2（1分）（5）防止产物见光分解（2分）（6）80%（2分）17．（14分）（1）适当升温或充分搅拌等（1分）PbO2+SO2=PbSO4（2分）（2）a（1分，多选或错选不给分）PbSO4(s...
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