StudentAidUnit 19: Basics of Organic Chemistry — Mcqs
12th Class Chemistry · Unit 19: Basics of Organic Chemistry
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Q1.I.Which of the following is organic in nature?
- a CO₂
- b CS₂
- c HCN
- d CCl₄
Q1.II.The empirical formula of CH₃CH₂CH=CH₂ matches with:
Q1.III.Compounds having single bonds usually undergo reactions:
Q1.IV.The functional group present in urea (H₂N–C(=O)–NH₂) is:
- a carbonyl
- b amino
- c amide
- d all of these
Q1.V.Which molecule is chiral and can rotate the plane polarised light? a) Pentan-1-ol b) Pentan-2-ol c) 2,2-dimethylpropan-1-ol d) 2-methylbutan-2-ol
Q1.VI.Which carbon in CH₃CH(CH₃)CH₂CH(OH)CH₃ is chiral? a) C-1 b) C-2 c) C-3 d) C-4
Q1.VII.In what ways could two compounds of molecular formula C₂H₂Br₂ be related to each other?
Q1.VIII.Which of the following shows cis-trans isomerism? a) 1-butene b) propene c) 2-butene d) 1,1-dichloroethene
Q1.IX.Which one of the following pairs do the isomers have identical boiling points? a) cis and trans isomers b) (+) and (-) enantiomers c) cis-trans and optical isomers d) structural isomers