Which of the following is an amide________________? April 15, 2025 by admin A. R-NH2 B. RCONH2 C. R – NH – R D. C6H5NH2
Only sigma bonds are present in__________________? April 15, 2025 by admin A. propene B. butanoic acid C. butanal D. ethoxy ethane
The structure of ethyne is_________________? April 15, 2025 by admin A. angular B. trigonal C. linear D. trigonal planar
The general formula of cycloalkene is __________________? April 15, 2025 by admin A. CnH2n B. CnH2n+2 C. CnH2n-1 D. CnH2n-2
C5H12 has the number of isomers ___________________? April 15, 2025 by admin A. one B. two C. three D. four
Octane number can be improved by________________? April 15, 2025 by admin A. Isomerization B. Adding (C2H5)4 Pb C. Adding (CH3)4 Pb D. All
Octane number 2 2 4-trimethyl pentane is________________? April 15, 2025 by admin A. 100 B. 90 C. 80 D. 70
Propene can exhibit________________? April 15, 2025 by admin A. cis-trans isomerism B. geometric isomerism C. both a & b D. none of the above
Pentane and 2-methyl butance have the same_______________? April 15, 2025 by admin A. Boiling point B. Melting point C. Percentage composition D. Structural formula
The first organic compound was synthesized in laboratory by_________________? April 15, 2025 by admin A. Wohler B. Kolbe C. Berzilius D. Berthelot
