EASY
NDA & NA EE
IMPORTANT
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The raw materials used for the manufacture of Portland cement are:
(a)lime, silica and sulphur dioxide
(b)lime, silica and carbon dioxide
(c)lime, silica and alumina
(d)lime, silica and boric acid

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Important Questions on Elements, Compounds and Mixtures
EASY
NDA & NA EE
IMPORTANT
Which one of the following does not represent the salt, calcium carbonate?

EASY
NDA & NA EE
IMPORTANT
Which one of the following substances is not a mixture?

EASY
NDA & NA EE
IMPORTANT
Which one of the following is termed as 'dry ice'?

EASY
NDA & NA EE
IMPORTANT
Which one of the following is not a monoatomic element?

EASY
NDA & NA EE
IMPORTANT
Which one of the following substances is not a mixture?
