Covert but-2-yne to trans-but-2-ene.

The reagent that is used to convert but -2-yne to trans-but-2-ene is

Identify the wrong statement : The reagent which converts But-1-yne to But-2-yne is ale. KOH, The reagent which converts But-2-yne to But-1-yne is NaNH_2 , Catalyst used in the dimerisation of acetylene in the preparation of chloroprene in aq. NH_4 CI containing CuCI_2 , When 2, 3-Dibromobutane is treated with ale.KOH the product formed is Buta-1, 3-diene

How will you bring about the following conversions? i. Ethanol to but-1-yne ii. Ethane to bromo:ethene iii. Propene to 1 -nitropropane iv. Toluene to. benzyl alcohol v. Propene to propyne vi. Ethanol to ethyl fluoride vii. Bromomethane to propanone viii. But-1-ene to but -2-ene ix. 1 chlorobutane to n- octane x. Benzene to biphenyl.

Which of the following is not true about cis and trans but-2-ene

Anti-Markownikoff's addition of 'HBr' is not observed in, propene but-1-ene but-2-ene pent-2-ene

Assertion: Addition of bromine to trans-2-butene yields meso-2,3-dibromobutane Reason : Bromine addition to an alkene is an electrophilic addition.

Outline the structural formulae of i. 3 - methyl but -1 -yne ii. But -2- en -1- al iii. But -2- en -1 - oic àcid

Which of the following compounds shows geometrical isomerism? (i) Pent-1-ene (ii) 2-Methyl but-2-ene (iii) Pent-2-ene