____ is the most electropositive and ___ is the most electronegative element of the third period of modern periodic table.
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In the following question, four words are given out of which one word is incorrectly spelt. Select the incorrectly spelt word.
The cell walls of many organisms of Fungi kingdom are made of a tough complex sugar called ______.
Which formula correctly describes productivity?
Rusting is _____.
The common name of lead (II) sulphide is
The laws which govern the motion of planets are called ___________________.
Limonitic ore is the ore of which metal?
Limonite is one of the two principal iron ores, the other being hematite, and has been mined for the production of iron.