Which of the following is an amide________________?
A. R-NH2 B. RCONH2 C. R – NH – R D. C6H5NH2
Chemistry MCQs
Only sigma bonds are present in__________________?
A. propene B. butanoic acid C. butanal D. ethoxy ethane
The structure of ethyne is_________________?
A. angular B. trigonal C. linear D. trigonal planar
The general formula of cycloalkene is __________________?
A. CnH2n B. CnH2n+2 C. CnH2n-1 D. CnH2n-2
C5H12 has the number of isomers ___________________?
A. one B. two C. three D. four
Octane number can be improved by________________?
A. Isomerization B. Adding (C2H5)4 Pb C. Adding (CH3)4 Pb D. All
Octane number 2 2 4-trimethyl pentane is________________?
A. 100 B. 90 C. 80 D. 70
Propene can exhibit________________?
A. cis-trans isomerism B. geometric isomerism C. both a & b D. none of the above
Pentane and 2-methyl butance have the same_______________?
A. Boiling point B. Melting point C. Percentage composition D. Structural formula
The first organic compound was synthesized in laboratory by_________________?
A. Wohler B. Kolbe C. Berzilius D. Berthelot