In Mendeleev's periodic table, the properties of the elements are considered a periodic function of their:
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Tooth decay starts when the pH of the mouth is lower than
Which of the following is a greenhouse gas or a gas which can deplete the ozone layer?
The melting point of ice is ____ K.
Activated Charcoal is used to remove colouring matter from pure substances by_______
What are the main components of Brass Alloy?
....... is the property of attracting electrons by the halogen atoms in a molecule
A radio-active substance has a half life of six months. Three-fourth of the substance will decay in ______.
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