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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 total number of valence electrons in 4.2 gm N - 3 of ion is ( N A is the Avogadro's number): (1) 1.6N A (2) 3.2N A
Physical properties of Alkynes (a) it is a colourless gas. It comprises a garlic odour. The odour is because of existence of impurities of phosphorous and hydrogen sulphide. Th
density of gas is 2.86 ltr.the gas maz be-
Structure of Aldehydes and Ketones Carbonyl carbon atom is connected to three atoms by sigma bonds. As these bonds use Sp 2 -orbitals, they found in the same plane and are 120°
Illustrate how a high initial permeability in Fe-Ni alloys helps to reduce the area under hysteresis loop. The most favourably oriented fully-grown domain tends to rotate so a
The amount of electricity required to produce one mole of copper from sulphate solution will be how many faradays? Ans) 2 faraday of electricity is required to produce one mol
ACCOUNT FOR THE STABILITY OF CONJUGATED DIENES
Saturated and unsaturated hydrocarbons The compounds of carbon and hydrogen in which carbon atoms are linked to each other by single covalent bonds(C-C) are known as alkanes. T
5
Quantitative analysis: The quantitative analysis could be carried out using standard calibration curve, through standard addition or internal addition method. The method is su
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