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Question
Chemistry
Average composition of metal oxides in Portland cement in decreasing order is
Q. Average composition of metal oxides in Portland cement in decreasing order is
71
178
The s-Block Elements
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A
C
a
O
>
S
i
O
2
>
A
l
2
O
3
>
M
g
O
>
F
e
2
O
3
B
C
a
O
>
A
l
2
O
3
>
S
i
O
2
>
M
g
O
>
F
e
2
O
3
C
A
l
2
O
3
>
C
a
O
>
S
i
O
2
>
M
g
O
>
F
e
2
O
3
D
C
a
O
>
M
g
O
>
S
i
O
2
>
A
l
2
O
3
>
F
e
2
O
3
Solution:
Average composition of metal oxides in Portland cement is as follows:
So, the correct decreasing order is
C
a
O
>
S
i
O
2
>
A
l
2
O
3
>
M
g
O
>
F
e
2
O
3
