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Question

Chemistry Question on GROUP 1 ELEMENTS

Portland cement does not contain

A

CaSiO4CaSiO_4

B

CaSiO3CaSiO_3

C

Ca3Al2O6Ca_3Al_2O_6

D

Ca3(PO4)2Ca_3(PO_4)_2

Answer

Ca3(PO4)2Ca_3(PO_4)_2

Explanation

Solution

Main components of portland-cement are

(i) CaSiO3CaSiO _{3}

(ii) CaSiO4CaSiO _{4}

(iii) CaAl2O6CaAl _{2} O _{6}

and some other substance but it does not contain Ca(PO4)2Ca \left( PO _{4}\right)_{2}