Question

The number of sigma and pi-bonds in 1-butene-3-yne are :

A. 5 sigma and 5 pi
B. 7 sigma and 3 pi  
C. 8 sigma and 2 pi
D. 5 sigma and 4 pi
Answer :   7 sigma and 3 pi
Solution :
$$\eqalign{ & C{H_2} = CH - C \equiv CH; \cr & {\text{No}}\,{\text{of}}\,\sigma \,{\text{bonds}} = \,2 + 1 + 1 + 1 + 1 + 1 = 7; \cr & {\text{No}}\,{\text{of}}\,\pi \,{\text{bonds}} = 1 + 2 = 3 \cr} $$

Releted MCQ Question on
Organic Chemistry >> General Organic Chemistry

Releted Question 1

The bond order of individual carbon-carbon bonds in benzene is

A. one
B. two
C. between one and two
D. one and two alternately
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Releted Question 2

Molecule in which the distance between the two adjacent carbon atoms is largest is

A. Ethane
B. Ethene
C. Ethyne
D. Benzene
View Answer
Releted Question 3

Among the following, the compound that can be most readily sulphonated is

A. benzene
B. nitrobenzene
C. toluene
D. chlorobenzene
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Releted Question 4

The compound 1, 2-butadiene has

A. only $$sp$$   hybridized carbon atoms
B. only $$s{p^2}$$ hybridized carbon atoms
C. both $$sp$$  and $$s{p^2}$$ hybridized carbon atoms
D. $$sp$$ , $$s{p^2}$$ and $$s{p^3}$$ hybridized carbon atoms
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General Organic Chemistry

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Physical ChemistrySome Basic Concepts in ChemistryStoichiometryStates of Matter Solid, Liquid and GasAtomic StructureChemical ThermodynamicsSolutionsSolid StateSurface ChemistryChemical EquilibriumIonic EquilibriumChemical KineticsRedox ReactionElectrochemistryNuclear Chemistry
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