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verify the law of multiple proportions for an element X, which forms oxides having percentages of X equal to 77.4%, 63.2%,69.6% and 72.0%
Q. What do you mean by Chemical Bonding? Ans. Atoms react chemically by losing, gaining or sharing electrons. Chemical bonds are the attractive forces that hold atoms toge
alloy formation
Nitrogen has the electronic configuration 1s 2 , 2s 2 , 2p 1 x , 2p 1 y , 2 p 1 z and not 1s 2 , 2s 2 , 2p 2 x , 2p 1 y , 2 p 0 z which is determined by: (1) Aufb
Among the following which property is commonly exhibited by a covalent compound: (1) High solubility in water (2) High electrical conductance (3) Low boiling po
A single covalent bond is build when two atoms share a pair of electrons. Triple and double bonds can be formed when two or three such pairs are shared. A Lewis structure is a repr
bohr model for hydrogen atom?
Q. Explain about Preparation of diborane? Diborane can be prepared in almost quantitative yields by the reduction of boron Tricloride etherate (BF 3 , 0Et 2 ) with lithium alum
a sample of CaCo3 and MgCo3 weighing 192g is ignited to constanr weight of 104 gm . what is the composition of mixture ?
Vat dyes: These dyes are insoluble in water and cannot be helpful directly. These dyes on decline along with sodium hydrosulphite (NaHSO 3 ) in a vat make a soluble compound th
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