The Strongest Interaction Assignment Help
The Strongest Interaction Assignment Help
1. A nucleophile acts as a __________ when it reacts with an
electrophile.
(a) Bronsted-Lowry acid
(b) Arrhenius base
(c) Lewis acid
(d) Lewis base
2. Which of the following is not normally considered to be
a nucleophile?
(a) NH3
(b) CH3NH2
(c) HC≡C:
–
(d) CH3CH2
The Strongest Interaction Assignment Help
3. Which of the following is not a nucleophile?
(a) FeBr3
(b) Br–
(c) NH3
(d) CH3OCH3
4. Which of the following is the strongest interaction?
(a) a covalent bond
(b) dipole-dipole interactions
(c) hydrogen bonding
(d) van der Waals
5. Which of the following statements is incorrect?
(a) Electrons move toward positively charged locations.
(b) An electron-rich atom is called an electrophile.
(c) An electrophile is electron loving.
(d) A nucleophile has a a pair of electrons it can share.
6. Which of the following is a nonpolar molecule?
(a) HCl
(b) CH3Cl
(c) H2
(d) NH3
7. Which is defined as a species that accepts a proton?
(a) Lewis acid
(b) Lewis base
(c) Bronsted-Lowry acid
(d) Bronsted-Lowry base
8. Which statement is correct about acid-base chemistry?
(a) the larger the Ka, the stronger the acid
(b) a small pKa correspond to a large Ka
(c) the smaller the pKa, the stronger the acid
(d) all of the above
9. Which of the following statements is correct?
(a) The stronger the acid, the weaker its conjugate base.
(b) The stronger the acid, the stronger its conjugate base.
(c) The stronger the base, the stronger its conjugate base.
(d) The stronger the acid, the weaker its conjugate acid.
Answer. (a)
10. What is the conjugate acid of CH3NH2?
(a) CH3NH3
(b) CH3NH–
(c) NH4
(d) NH2
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