Home › UP Board Class 10 › chemistry › Carbon and its Compounds › Which catalyst is used to add hydrogen across th…
Which catalyst is used to add hydrogen across the double bond of an alkene?
ANickel (Ni) at moderate temperature
BConcentrated H2SO4
CCalcium oxide in standard practice
DManganese dioxide
Answer & Solution
Correct answer: A. Nickel (Ni) at moderate temperature
1. Adding hydrogen across a C=C bond is called hydrogenation.
2. The reaction needs a finely divided metal catalyst.
3. Nickel (or palladium / platinum) is commonly used.
4. Concentrated H2SO4 is used for dehydration, not hydrogenation.
5. Hence Ni is the standard catalyst here.
_Source: NCERT Class 10 Science Ch 4 'Carbon and its Compounds' (byjus.com extract)_
Related questions
The functional group in acetic acid (CH₃COOH) isWhen ethanol reacts with sodium metal, one of the products isThe compound formed when ethanol undergoes complete combustion isWhich of the following is used for making cutting tools due to its extreme hardness?The two allotropes of carbon found naturally areWhen soap is added to water, the ionic (hydrophilic) end of the soap molecule interacts wiThe IUPAC name of CH₃−CH₂−CH₂−CH₃ isThe presence of a double bond between two carbon atoms makes the compound