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Chemistry Class 12 Chapter 8
Aliphatic Hydrocarbons
Test 7
1.
As an artificial ripening of fruits gas used is?
Marsh gas
Ethane
Ehtene
Ethyne
2.
The hindrance rotation about the double bonds in 2-butene gives two?
None of these
Tautomers
Geometrical isomers
Enantiommers
3.
Methyl free radical involves?
sp
3
hybridization
sp hybridization
sp
2
hybridization
dsp
2
hybridization
4.
The reactivity in ethylene is due to?
Presence of pi electrons
Short distance between carbon atoms
Trigonal planer structure
Highly bond energy
5.
The hybridization on tertiary carbon atom in isobutene is?
sp
2
sp
3
sp
None of these
6.
Alkanes containing one branch of main chain are known as?
Neo
Branched
Iso
Normal
7.
When petroleum is heated firstly it converted into?
Petroleum ether
Lubricant
Kerosene
Diesel oil
8.
Methane reacts with oxygen at 100 atm.and 300oc in presence of Cu to give?
Ethyle alcohol
Acetaldehyde
Methyle alcohol
Acetic acid
9.
Which is the most stable alkene in these?
Ethyle alcohol
n-butyle alcohol
Sec.butyle alcohol
10.
The bonds presents in ethyne are in order of?
1 sigma & 2 pi
1 pi & 5 sigma
2 pi & 3 sigma
3pi & 3 sigma
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