chemistry: exp. Test 2023

written by gogorabei | June 19, 2023

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#1. 5)Which one of the following reactions results does not remove the color of alkaline potassium permanganate solution ?

a)Adding one mole of H2 to one mole of propyne.

a)Adding one mole of H2 to one mole of propyne.

b)Adding one mole H Br to one mole of 2- methyl -2- butene.

b)Adding one mole H Br to one mole of 2- methyl -2- butene.

c)Removing water from 1-butanol.

c)Removing water from 1-butanol.

d)Removing water from 2-methyl -2- propanol.

d)Removing water from 2-methyl -2- propanol.

#2. 8) Which one of the following solutions is used to distinguish between the salt solutions of (NH4)2SO4 and MgSO4 ………..

a)NaNO3

a)NaNO3

b)KCl

b)KCl

c)Na2CO3

c)Na2CO3

d)Ca(HCO3)2

d)Ca(HCO3)2

#3. 9)Two organic compounds C8H6O4 , C6H6O2, both of them reacts with ……

a)NaOH

a)NaOH

b)Na2CO3

b)Na2CO3

c)C2H5OH

c)C2H5OH

d)HCl

d)HCl