NAT II Physical Science Chemistry With Answers

NAT II Physical Science Chemistry

Sr. # Questions Answers Choice
1 Which of the following reaction is used for detecting presence of carbonyl group? Reaction with hydroxylamine Reaction with hydrazine Reaction with phenyl hydrazine All
2 Which of the following alcohols cannot be produced by treatment of aldehydes or ketones with NaBH4or LiAIH4? 1-Propanol 2-Propanol 2-Methyl-2-propanol Ethanol
3 Calcium acetate when dry distilled Formaldehyde Acetaldehyde Acetone Acetic anhydride
4 Isopropyl alcohol on oxidation forms Acetone Ether Ethylene Acetaldehyde
5 Hydrolytic conversion of sucrose into glucose and fructose is known as Induction Inversion Insertion Inhibition
6 Mild oxidation of glycerol with H2O2/FeSO4 gives Glyceraldehyde Dihydroxy acetone Glycerose None
7 Ethanol containing some methanol is called Absolute spirit Rectified spirit Power alcohol Methylated spirit
8 Phenol is heated with CCl4and alkaline KOH when salicylic acid is produced. The reaction is known as Frledel-Craft reaction Riemer-Tiemann's reaction Rosenmund's reaction Sommelet reaction
9 Salol is prepared from Salicyclic acid and phenol Salicyclic acid and methyl alcohol. Both None
10 Maximum number of active hydrogens Acetic acid Glycerol Methane Methanol
11 Dehydration of glycerol give Propane Propene Acrolein Benzene
12 Which of the following cannot be produced by acidic dehydration of alcohols? Ethers Aldehyde Alkyl Hydrogen sulphate Alkene
13 Ethyl alcohol is industrially prepare from ethylene by Permanganate oxidation Catalytic reduction Absorbing in H<sub>2</sub>SO<sub>4</sub>followed by hydrolysis Fermentation
14 Which one is primary alcohol? Buten-2-ol Propan-2-ol Butaon-1-ol 2, 3-Dimethylhexane-4-ol
15 For the carbylamine reaction we need hot alc. KOH and Any amin and chloroform Chloroform and Ag powder A primary amine and chloroform A mono alkyl amine and trichlorom-ethane
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