MCAT_Review_Silberberg

MCAT_Review_Silberberg - General Chemistry Questions...

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General Chemistry Questions Electronic Structure and Periodic Table 1. What value or values of m l are allowable for an orbital with l = 2? a. 0 b. 2 c. -1 d. none of the above e. all of the above 2. According to Bohr Theory, which of the following transitions in the hydrogen atom will give rise to the least energetic photon? Use the equation: E n = (-2.18 x 10 -18 J)(1/ n 2 ) a. n = 5 to n = 3 b. n = 6 to n = 1 c. n = 4 to n = 3 d. n = 5 to n = 4 e. n = 6 to n = 5 3. Consider a 3 d xz orbital. Which of the following statements is incorrect ? a. The xz plane is a nodal surface. b. The xz plane divides the electron probability distribution into two identical mirror-image halves. c. The xy plane divides the electron probability distribution into two identical mirror-image halves. d. The yz plane divides the electron probability distribution into two identical mirror-image halves. e. The nucleus is located at a node. 4. The electronic configuration of the element whose atomic number is 26 is: a. 1 s 2 2 s 2 2 p 6 3 s 2 3 p 6 4 s 0 3 d 8 b. 1 s 2 2 s 2 2 p 6 3 s 2 3 p 6 3 d 6 4 s 2 c. 1 s 2 2 s 2 2 p 6 3 s 2 3 p 6 4 s 2 3 d 6 d. 1 s 2 2 s 2 2 p 6 3 s 2 3 p 6 4 s 2 3 d 4 4 p 2 e. none of the above 5. Which of the following has the largest radius? a. F b. N c. C d. O e. Ne
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6. Which of the following elements has the largest ionization energy? a. Na b. Ne c. F d. K e. Rb 7. Which of the following has the greatest electron affinity (most negative value)? a. Cl b. K c. He d. Na e. Rb 8. Which of the following species is not isolectronic with any of the others? a. V 3+ b. Ca 2+ c. Ar d. Cl - e. S 2- 9. In Bohr's model of the hydrogen atom, the radius of an orbit a. is proportional to n 2 . b. is smallest for the highest energy state. c. increases when a photon of light is emitted from an excited atom. d. can have any value that is larger than the ground-state radius. e. none of the above 10. Which of the following atoms is not a one-electron system? a. H b. He + c. Li 2+ d. Be 2+ e. O 7+ 11. Which of the following statements about periodic properties is incorrect? a. Both electron affinity and ionization energy decrease down a group. b. Atomic size increases to the right across a period. c. Ionization energy increases to the right across a period. d. Atomic size increases down a group. e. Electron affinity increases to the right across a period.
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Bonding 1. Which one of the following is most likely to be an ionic compound? a. HNF 2 b. H 2 CO c. N 2 H 4 d. CaCl 2 e. CH 3 Cl 2. In which of the following processes does the enthalpy change ( Δ H ) directly represent the magnitude of the lattice energy of KCl( s )? a. Cl 2 ( g ) + 2K( s ) 2KCl( s ) b. KCl( s ) K + ( aq ) + Cl - ( aq ) c. KCl( s ) K + ( g ) + Cl - ( g ) d. KCl( s ) K( s ) + Cl - ( g ) e. KCl( s ) K( s ) + Cl( g ) 3. Order the following by increasing bond strength: N N, N=N, N-N a. N N, N=N, N-N b. N N, N-N, N=N c. N-N, N=N, N N d. N=N, N-N, N N e. N=N, N N, N-N
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This note was uploaded on 12/19/2011 for the course AP CHEM 1300 taught by Professor James during the Fall '11 term at Manitoba.

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MCAT_Review_Silberberg - General Chemistry Questions...

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