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Yes it does. This is a general test for unsaturation.

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Q: Does ethyne decolourize KMnO4 solution
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Why does alkene reacts kmno4?

KMnO4 will react with compounds having unsaturation (double bond or triple bond). Since alkenes have double bond, it will react with KMnO4 and decolourize dilute KMnO4 solution.


Why benzene cannot decolourize KMnO4 while alkenes can decolorize?

KMnO4 will add across the double bond of alkenes (or alkynes) resulting in the docolouring of KMnO4 but not an alkane such as ethane.


What are the Chemical equations to distinguish between alkane and alkene?

Alkenes have a double bond between the carbon atoms (C=C) whereas alkanes have a single bond (C-C). so alkenes are unsaturated compounds, add aqueous solution of Bromine or KMnO4 to both the compounds the decolourization of these reagents confirms the presence of alkenes.


What is molarity of a solution that contains 0.798 g KMnO4 in 50.0 mL solution?

The molar mass of KMnO4 is 158,3415 g.The molarity of this solution is 0,1 M.


What mass of KMnO4 is required to prepare 3.00 liters of a 0.05253 M solution of KMnO4?

24 g


What is KNMO4 solution?

There is no such solution.You probably mean KMnO4 which is Potassium Permanganate solution.


How can you distinguish between ethene and ethyne by means of a chemical reaction?

Ethyne is acidic in nature and is soluble in aqueous solution of NaOH while ethene does not.


Ethyne when reacts with aqueous KMnO4 in cold condition forms formic acid and in hot condition oxalic acid it should not be reversed?

oh shut up yu@@%$#^%%@


How many moles of KMnO4 are present in 75.0 mL of a 0.0950 M solution?

Molarity = moles of solute/Liters of solution ( 75.0 ml = 0.075 Liters ) Algebraically manipulate, moles of solute = Liters of solution * Molarity Moles KMnO4 = (0.075 Liters)(0.0950 M) = 7.13 X 10 -3 moles KMnO4 ------------------------------------


Which solution may be used to disinfect water?

a dilute aqueous solution of KMnO4 may be used.


You have .2 n kmno4 which you have to dilute it to 0.05n kmno4 how can you dilute that?

4 x. Take 25ml of 0.2 M solution and dilute to 100ml.


How many 60 mg kmno4 tablets are needed to make following solution kmno4 1 5000 600 ml?

2 TABLETS