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Cement, the important building material is a mixture of oxides of several elements. Besides calcium, iron and sulphur, oxides of elements of which of the group (s) are present in the mixture ?

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The correct Answer is:
B
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NARAYNA-14TH GROUP ELEMENTS-Single Answer type Questions
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  16. The dehydration of malonic acid CH(2) (COOH)(2) with P(4)O(10) and hea...

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  17. Which of the following is correct statement regarding N(CH(3))(3) and ...

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  18. A overset("Red hot coke")rarr CO overset(Cl(2))rarr C overset(H(2)O)ra...

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  19. An inorganic compound (X) on hydrolysis produces a gas which on treatm...

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  20. The b.p of CF(4) is almost half that of SiF(4) while the difference in...

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