Na2Co3.10H20 kese hua?
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Because of its hygroscopic nature
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Na2CO3 molecule h normal usme 10 molecules water ke add ho gye as water of crystallisation. .To wo pura molecule ho gya Na2CO3•10H2O ya washing soda.
....aur ha vo geela nhi hoga haa....bs iski vjh se colour aur texture milega use......ye mt puchna kese xD....iske lie fir tumhe electromagnetic radiation padna padega
luckyjoshi615:
And all the 3 elements in a group had similar properties
formula :- (atomic mass of 1st element+atomic mass of third element)/2 = atomic mass of 2nd Element
But as this was limited for only 3 groups . This was not used for further development . So it was a kind of incorrect arrangement of elements
really thanks.... you're great bhai
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sorry
thora misunderstanding ho gya
aapne mughe upr putha tha ki 10th ke final main kitna lana chahtiho
but maine to aapko 9to 10ka %he btaya
acctually main 10th main 96 97lana chahti hoon
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