પર્યાવરણીય રસાયણ પ્રશ્ન 12
પ્રશ્ન: નીચેનામાંથી કઈ પોર્ટલેન્ડ સિમેન્ટમાં સમાવિષ્ટ નથી?
વિકલ્પો:
A) $ Ca _3Al _3O _6 $
B) $ Ca _3SiO _5 $
C) $ Ca _2SiO _4 $
D) $ Ca _3{{(PO _4)}_2} $
Show Answer
જવાબ:
સાચો જવાબ: D
BETA
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