EASY
NDA & NA EE
IMPORTANT
Earn 100

Which one of the following statements about glass is not correct?
(a)Glass is often said to be a supercooled liquid.
(b)Glass has no definite melting point.
(c)Soda glass is harder than pyrex glass.
(d)Boron is present in pyrex glass.

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Important Questions on Elements, Compounds and Mixtures
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IMPORTANT
The raw materials used for the manufacture of Portland cement are:

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NDA & NA EE
IMPORTANT
Which one of the following does not represent the salt, calcium carbonate?

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IMPORTANT
Which one of the following substances is not a mixture?

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IMPORTANT
Which one of the following is termed as 'dry ice'?

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IMPORTANT
Which one of the following is not a monoatomic element?

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