Plaster of Paris ______.
I. changes into gypsum on mixing with water
II. is CaSO4.2H2O
III. is used for decoration
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In HTML, ______________ is a set of links designed as buttons.
The main source of National Income in India is
Which of the following statements is/are true or false?
Statements :
A) H2S burns in air to give H2O and SO2
B) The decomposition of Ferrous Sulphate into Fe2O3, SO2 and SO3 occurs in the presence of heat.
Fill in the blank with the most appropriate option.
Ethanol is denatured to ___.
Out of all known elements, the minimum number is of ______.
Generally covalently bonded molecules ______.
I. have high boiling and melting point as compare to ionically bonded molecules
II. poor conductors of electricity
III. have weak intermolecular force
Which statement about PFD's is true?