Home › AP Intermediate 1st Year › Chemistry › Alcohols, Phenols and Ethers › Dihydrogen adds to alkenes and alkynes over cata…
Dihydrogen adds to alkenes and alkynes over catalysts to form:
AAlkanes
BAlkalis
CAlcohols
DAldehydes
Answer & Solution
Correct answer: A. Alkanes
1. Adding hydrogen removes the multiple bonds.
2. The product is fully saturated.
3. Dihydrogen gas adds to alkenes and alkynes over finely divided catalysts to form alkanes.
4. So the answer is alkanes.
_Source: NCERT Class XI Chemistry Part II, Unit 9 'Hydrocarbons'_
Related questions
With which two hydrogen halides is the peroxide effect not observed?Addition anti to Markovnikov rule is known as the peroxide or:Who framed the rule for adding HBr to unsymmetrical alkenes, in 1869?An intermediate conformation between eclipsed and staggered is called:Eclipsed and staggered conformations are represented by Newman and:Across all conformations, what stays the same?How many conformations can an alkane have by rotation about single bonds?Spatial arrangements interconverted by rotation about a single bond are called: