A change in which no new substances are formed is called _____________.
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Atomic number of which of the following elements is greater than that of Fluorine?
Terylene is a condensation polymer of ethylene glycol and which acid?
Haemoglobin has the highest affinity with which of the following?
When iron is exposed to moist air, a reddish brown coating of hydrated Iron (III) Oxide (Fe2O3) is deposited on its surface. This reddish brown coating is called
The passage of an electric current through a conducting liquid causes ___________.
Oxygen molecule is ______.
The tenth element in the Newland's periodic classification resembles the