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Lakhmir Singh & Manjit Kaur - Chemistry

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Q. 475.0( 4 Votes )

An alkyne has seventy-five carbon atoms in its molecule. The number of hydrogen atoms in its molecule will be: A. 150 B. 148
C. 152
D. 146

Class 10th Lakhmir Singh & Manjit Kaur - Chemistry 4. Carbon and Its Compounds

Answer :

Those unsaturated hydrocarbons which have one or more triple bonds along with the single bonds are called alkynes. The general formula of alkynes is CnH2n-2. Here, n is number of carbon atoms. If number of carbon atoms (n)=75 Then, CnH2n-2 = C75H75X2-2 =C75H148 The number of hydrogen atoms is 148.

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