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(i) What type of substances exhibit antiferromagentism? (ii) How does doping of NaCl with SrCl2 changes its structure? (iii) Some of the glass objects recovered from ancient monuments look milky instead of being transparent.

(i) What type of substances exhibit antiferromagentism?
(ii) How does doping of NaCl with SrCl2 changes its structure?
(iii) Some of the glass objects recovered from ancient monuments look milky instead of being transparent.

Grade:Upto college level

1 Answers

Sunil Kumar FP
askIITians Faculty 183 Points
9 years ago
(1)substance exibit antiferromagnetism is Mno where the domain are oppositely charged and cancel out each others magnetic moment
(2)if molten NaCl containning a little amount of SrCl2 is crystallised some of the sites of Na+ ions are occupied by Sr+2.each Sr+2 replaces 2 Na+ ion.it occupies the site one ion and the other site remains vacant
(3)some of the glass objects from ancient monuments look milky instead of being transparent because of some crystallisation occurring after a long exposure to the atmosphere. They become a bit opaque.

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