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                   why are metals lustrous

3 years ago


Answers : (2)


Due to electronic oscillations.

3 years ago

Metal are lustrous because their bond type absorbs and emits a large amount of wavelengths (colors) creating white light. Thus, metals have shiny

3 years ago

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a compound contain 90% of carbon and 10% hydrogen.then what will be the empirical formula of compound
Convert it to fraction and consider the % weight to be the share of weight in the compound by individual elements. DIvide the fractions with their atomic weight. Simplify the resultants of...
Ravi 4 months ago
Hi Student, Given C 90%, H10%. So Moles of element C = 90/12 =7.5 So Moles of element H = 10/1 =10 Simplest molar ration of carbon= 7.5/7.5=1 Simplest molar ration of H= 10/7.5=1.33 whole no...
Harishwar 4 months ago
PH 3 has a tetrahedral or a trigonal pyramidral structure??
You are partly right. Look at page 111 and 112. See basically, it all depends on the lone pair. Since there is a lone pair, it’ll be trigonal pyramidal. (BECAUSE OF THE LONE PAIR) if there...
riya 5 days ago
It is trigonal pyramidal, just like ammonia. Also, if you draw the structure of Ph3, you get sp2 + 1 lone pair which corresponds to the trigonal pyramidal structure.
riya 5 days ago
And it is AB3E
riya 5 days ago
Why ETHYNE undergoes sp hybridisation? why it cannot be sp 2 or sp 3 hybridisation?
In ethyne molecule there is sp-hybridisation involving one s and one p-orbital in both the carbon atoms.The ground state configuration of C-atom is – 1s 2 ,2s 2 ,2p 2 .In excited state...
Aarti Gupta 5 months ago
how to detect methyl alchol in a mixture of alcohols?
alcohol can be separated from methyl alcohol chemically by adding anhydrous calcium chloride which forms complex with methanol but not with alcohol.Then the crystalline complex may be...
abhimanyu 2 months ago
by using boiling point methods it boils quicker than the others
Abhishek 2 months ago
calculate the mole fraction of benzene in a solution containing 40% by mass of toulene.?
Yes you are correct.I made the caculation using the total mass of the mixture is 100gm According to the question if the mass of touene is 100 gm mass of benzene=40 gm moles of toluene=92/100...
Sunil Kumar FP 4 months ago
let the mass of the total mixture be 100gm mass of the benzene=40gm mass of the toluene =60gm molecular weight of benzene and toluene =78 and 92 mole fraction of benzene =mole of...
Sunil Kumar FP 4 months ago
sr but he ans is 0.638
Shriya Mehrotra 4 months ago
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