Assertion: Cis-2-butene gives meso-2, 3-butanediol with dilute alkaline KMnO4 solution.
Reason : Dilute alkaline KMnO4 solution gives trans addition with alkenes.
If both assertion and reason are true and reason is the correct explanation of assertion
If both assertion and reason are true but reason is not the correct explanation of assertion
If assertion is true but reason is false
If both assertion and reason are false
Assertion : The presence of Ag+ enhances the solubility of alkenes in water.
Reason : Alkenes are weakly polar in nature.
If both assertion and reason are true and reason is the correct explanation of assertion
If both assertion and reason are true but reason is not the correct explanation of assertion
If assertion is true but reason is false
If both assertion and reason are false
Identify the final product.
None of these
B.
m-CPBA ( meta- chloroperoxybenzoic acid) is an extremely useful reagent most frequently encountered in the synthesis of epoxides. m-CPBA forms epoxides when added to alkenes. One of the key features of this reaction is that the stereochemistry is always retained.
In the above sequence Y can be
3-nitrochlorobenzene
1-nitrochlorobenzene
4-nitrochlorobenzene
none of these