Ncert Solutions Chemistry Class 12th
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7 months agoDichromate ion is treated with base, the oxidation number of Cr in the product formed is-----------.
Contributor-Level 10
Dichromate ion converted to chromate ion in basic medium and oxidation number of Cr in is +6.
New answer posted
7 months ago
Contributor-Level 10
This is free radical mechanism, bromination takes place at benzylic carbon (major product).
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7 months agoContributor-Level 10
O3 generally exist in stratosphere and they acts as protector, because it protect us from harmful UV radiations but sometimes O3 formed in troposphere and it acts as a pollutants.
O3 in stratosphere : - Protector
O3 in Troposphere : - Pollutant (photochemical smog)
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7 months agoContributor-Level 10
o - Nitrophenol is more volatile due to intramolecular hydrogen bonding,
So I statement is correct but statement (II) is false
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7 months agoContributor-Level 10
Kernite
Cassiterite (SnO2) → it is ore of tin
Calamine (ZnCO3) → it is ore of zinc
Cryolite (Na3AlF6) → it is ore fluorine
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7 months agoContributor-Level 10
Option (A) is false statement because estimation of nitrogen in an organic compound is done by Kjeldahl's method.
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7 months agoContributor-Level 10
PbO2 is used is lead storage battery and is amphoteric as strong oxidizing agent since Pb (II) is more stable than Pb (IV).
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7 months agoTaking an Exam? Selecting a College?
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