Order Molecular Formula Discussion Assignment

Order Molecular Formula Discussion Assignment
Order Molecular Formula Discussion Assignment
1. What is the conjugate base of CH3NH2?
(a) CH3NH3
(b) CH3NH–
(c) NH4
(d) NH2

2. The stronger the acid __________.
(a) the less stable its conjugate base
(b) the larger the pKa
(c) the weaker its conjugate base
(d) the larger the pH
3. Which of the following is the strongest acid?
(a) HI
(b) H2O
(c) CH4
(d) CH3OH
4. Which of the following are Lewis bases?
(a) NF3
(b) BF3
(c) CH3OCH3
(d) (a) and (c)
5. Two compounds have the same composition and also
have the same atoms attached to the same atoms, although
with different orientations in space. These compounds are
(a) Identical
(b) Position isomers
(c) Structural isomers
(d) Stereoisomers
6. The isomers of a substance must have
(a) same chemical properties
(b) same molecular weight
(c) same structural formula
(d) same functional groups
7. Compounds with the same molecular formula but
different structural formulas are called
(a) Alkoxides
(b) Iso compounds
(c) Isomers
(d) Ortho compounds
8. Ethanol (CH3CH2OH) and dimethyl ether (CH3OCH3) are
best considered :
(a) structural isomers
(b) stereoisomers
(c) enantiomers
(d) diastereomers
9. The compounds CH3CH2OCH2CH3 and CH3OCH2CH2CH3
(a) Enantiomers
(b) Conformational isomers
(c) Metamers
(d) Optical isomers
10. Which of the following statements is false about
(a) Tautomers are structural isomers
(b) Tautomers are structural isomers which exist in dynamic
(c) Tautomerism involves movement of atoms
(d) Tautomers have independent existence
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