问题
选择题
下列物质中属于复合肥的是（ ）
A．Ca3（PO4）2
B．NH4H2PO4
C．NaNO3
D．KCl
答案
A、Ca3（PO4）2中含有磷元素，属于磷肥．
B、NH4H2PO4中含有氮元素和磷元素，属于复合肥．
C、NaNO3中含有氮元素，属于氮肥．
D、KCl中含有钾元素，属于钾肥．
故选B．
搜题请搜索小程序“爱下问搜题”
下列物质中属于复合肥的是（ ）
A．Ca3（PO4）2
B．NH4H2PO4
C．NaNO3
D．KCl
A、Ca3（PO4）2中含有磷元素，属于磷肥．
B、NH4H2PO4中含有氮元素和磷元素，属于复合肥．
C、NaNO3中含有氮元素，属于氮肥．
D、KCl中含有钾元素，属于钾肥．
故选B．
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