Bauxite
Hematite
Chalco pyrites
Fluorspar
The ore of Aluminum is -
The orientation of an atomic orbital is governed by
The Ozone layer protects us from
The pair of compounds used as anaesthetic in medicines:
The part of the brain more developed in man is_
The percentage of oxygen in air is approx.
The percentage of oxygen present in air is approximately
The PH value of a sample of multiple distilled water is
The phenomenon in which seeds germinate and seedlings grow while still attached to their mother plant before dropping down to establish themselves or be transported elsewhere, is most commonly found in which among the following plants?
The phenomenon of ejection of electrons from the metal surface when a light of suitable frequency falls on it is called-
