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Which type of bonding exists in Li2o and CaF2 respectively :
(1) Ionic, ionic
(2) Ionic, covalent
(3) Covalent, ionic
(4) Coordinate, ionic
Ans: Ionic, ionic
The minimum amount of energy needed for the reaction to takes place is known as threshold energy.
The covalency of nitrogen in HNO 3 is: (1) 0 (2) 3 (3) 4 (4) 5 Ans: 5
A hydrocarbon z with molecular mass 78 on combustion gave 3.384g of carbon (IV) oxide and 0.693g of water. Determine the molecular formula of Z and draw its structure. [H=1, C=12,
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match the graphs alkane,alkeneandalkyne
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Q. How to Determine Electron Affinity? Ans. Electron affinity is the measure of an atom's tendency to form a negative ion. Electron affinity can be measured by the amou
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