2013 Shanghai Question 2 Single-choice Differentiating 2013_上海 Paper 2.氰酸铵 $( \mathrm { N H } _ { 4 } \mathrm { O C N } )$ 与尿素[CO(NH<sub>2</sub>)<sub>2</sub>] ( ) A. 都是共价化合物B. 都是离子化合物C. 互为同分异构体D. 互为同素异形体 Answer keyC ☆ SaveCan't do it, show the explanation查看原卷 →