12th Class FSc Part 2 Chemistry Chapter Wise Online MCQ Test With Answer PDF

Chemistry Fsc Part 2 Online Test

Sr. #	Questions	Answers Choice
1	Ethanol on dehydration can be changed to	Ethene Diethyl ether Both 'a' and 'b' None of these
2	Ethanol on oxidation in the presence of K2Cr2O7 and Conc. H2SO4 changes to.	Acetaldehyde Ethane Ethene CO2 and H2O
3	Absolute alcohol is that which is	100% 95% Ethanol mixed with methanol Ethanol mixed with H2O
4	The product of fermentation of sucrose is	Ethanol and H2O Ethanol and CO Ethanol and CO2 Glucose and CO2
5	What products is formed when ethyl bromide reacts with magnesium to form Grignard's reagent.	Pyridine Anhydrous ether Ethyl alcohol Carbon tetrachloride
6	Which substance is used to convert Grignard reagent to alkane.	H2O NH3 Ethyl alcohol All of these
7	Which one of the following molecules does not form alcohol when reacts with a Grignard reagent.	Formaldehyde Acetaldehyde Propanone CO2
8	Which one of the following alcohols will be formed when ethyl magnesium bromide reacts with acetone.	Primary alcohol Secondary alcohol Tertiary alcohol Dehydrin alcohol
9	Which one of the following alkanes will be formed by the hydrolysis of ethyl magnesium bromide	Methane Ethane Butane do not hydrolysed
10	Acetic acid can be obtained from CH3MgI by treatment with.	H2O CINH2 CO2 HCHO
11	The general representation for Grignard reagent is.	RMgX ReMgX RXMg RMgX2
12	Which alkyl halide does not form Grignard's reagent.	CH3-Br CH3-Cl CH3- F CH3-I
13	Which one of the following will be required to form ethene from ethyl chloride.	Alcoholic KOH Aqueous KOH Alkaline KMnO4 Bromine
14	Which one of the following reactants will be required to form ethyl alcohol form ethyl bromide.	Alcoholic KOH Aqueous KOH Alkaline KMnO4 Sodium metal in ether
15	Which one of the following products will be formed in Wurtz reaction when sodium metal reacts with ethyl chloride in anhydrous ether.	Methane Ethane Propane Butane
16	The reaction of alkyl halides with sodium metal in the presence of ether to from alkane is known as.	Wortz reaction Frankland reaction Sabatier sendron Kolbe's synthesis
17	An alkyl halide may be converted to alcohol by	Addition Substitution Dehydrohalogenation Elimination

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