12th Standard Syllabus & Materials
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Published on: 13/05/2022
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Download Tamil Nadu 12th Standard Chemistry question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Chemistry Test1.
What is Bayer's reagent?
2.
Draw the structure of permanganate ion.
3.
What are the conditions for alloy formation?
4.
What is Zeigler - Natta catalyst?
5.
What is hydroformylation of olefins?
1.
Cold dilute alkaline KMnO4 is known as Bayer's reagent. It is used to oxidise alkenes into diols. For example, ethylene can be converted into ethylene glycol and this reaction is used as a test for unsaturation.
2.
Permanganate ion has tetrahedral geometry in which the central Mn7+ is Sp3 hybridised.
3.
(i) According to Hume-Rothery rule to, form a substitute alloy the difference between the atomic radii of solvent and solute is less than 15%.
(ii) Both the solvent and solute must have the same crystal structure and valence and their electro negativity difference must be close to zero.
4.
A mixture of TiCl4 and trialkyl aluminium is used for polymerization.
5.
12th Standard Syllabus & Materials
12th Standard
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