三氟化氮(NF3)是微电子工业中优良的等离子刻蚀气体，它在潮

首页 / 高中化学 / 试题详细

三氟化氮(NF₃)是微电子工业中优良的等离子刻蚀气体，它在潮湿的环境中能发生反应：3NF₃+5H₂O 2NO+HNO₃+9 HF，下列有关该反应的说法正确的是

A．NF₃是氧化剂，H₂O是还原剂

B．HF是还原产物

C．还原剂和氧化剂的物质的量之比是2∶1

D．NF₃在潮湿的空气中泄漏会产生红棕色气体

登录免费查看答案和解析

相关试题

Since then I a member of the family and never from them.

A．have be come; will I separate

B．have be come; I will separate

C．have been; will be separated

D．have been; I was separated

收藏答案/解析

---Will you please spare me a few minutes to accept my interview, Mr Yang Liwei now?
---________. But I’ll be free this evening. Would you mind?

A．No, I don’t	B．Yes, with pleasure
C．I’m afraid not	D．Yes, I’d be glad to

收藏答案/解析

Some famous singers live on the _________ from their record sales.

A．salary

B．value

C．bill

D．income

收藏答案/解析

The World Trade Organization (WTO) finally opened its door to China on November 10, ______ our Chinese 15-year wait.

A．to end	B．ended
C．ending	D．ends

收藏答案/解析

Qingdao is _______ most beautiful coastal city and I think I’ll go there for _______ second time.

A．a;a

B．the; a

C．the; the

D．the; a

收藏答案/解析

推荐套卷

热门套卷

粤ICP备20024846号

声明：本网站部分内容由互联网用户自发贡献自行上传，本网站不拥有所有权，也不承担相关法律责任。
如果您发现有涉嫌版权的内容，欢迎发送邮件至：service@youtike.com 或联系QQ：267757 进行举报，一经查实，本站将立刻删除涉嫌侵权内容。