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ChemistryMediumMCQ2019 · 12 Jan Shift 1

Q44.Water samples with BOD values of 4 ppm and 18 ppm, respectively, are: (1) Highly polluted and Highly polluted (2) Clean and Clean (3) Highly polluted and Clean (4) Clean and Highly polluted

What This Question Tests

This question evaluates the knowledge of reaction mechanisms, specifically the addition of a Grignard reagent to an aldehyde, followed by reduction with sodium borohydride.

Concepts Tested

Grignard reagent reactionReduction reactions (NaBH4)Stereochemistry (formation of secondary alcohols)

📚 NCERT Sections This Tests

8.17Complete Each Synthesis By Giving Missing Starting Material, Reagent Or Products

Chemistry Class 12 · Chapter 8

75% match

8.17 Complete each synthesis by giving missing starting material, reagent or products

7.17Give Equations Of The Following Reactions:

Chemistry Class 12 · Chapter 7

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7.17 Give equations of the following reactions: (i) Oxidation of propan-1-ol with alkaline KMnO4 solution. (ii) Bromine in CS2 with phenol. (iii) Dilute HNO3 with phenol. (iv) Treating phenol wih chloroform in presence of aqueous NaOH.

8.4Write The Iupac Names Of The Following Ketones And Aldehydes. Wherever

Chemistry Class 12 · Chapter 8

74% match

8.4 Write the IUPAC names of the following ketones and aldehydes. Wherever possible, give also common names. (i) CH3CO(CH2)4CH3 (ii) CH3CH2CHBrCH2CH(CH3)CHO (iii) CH3(CH2)5CHO (iv) Ph-CH=CH-CHO CHO (v) (vi) PhCOPh