5. The uncertainty in the velocity of an electron is 1x10^5 m s^-1. What is the minimum uncertainty in its position? (A)5.79x10^-5 m (B)2.31x10^-9 m (C)5.79x10^-10 m (D)2.31x10^-10 m (E)1.08x10^-10 m

8. A Lewis dot structure for benzene, C6H6 would give two equivalent resonance structures for this cyclic molecule with alternating single and double bonds. A combined LCAO and MO picture for the bonding of the carbon atoms in benzene would be (A)1σ(Csp2-Csp2) bonds between each C atom, and 3π MO delocalized over the C's (B)2σ(Csp3-Csp3) bonds between each C atom, and 1π MO delocalized over the C's (C)1σ(Csp3-Csp3) bonds between each C atom, and 1π MO delocalized over the C's (D)1σ(Csp2-Csp2) bonds between each C atom, and 2π MO delocalized over the C's (E)3σ(C2p-C2p) bonds between each C atom

5. The uncertainty in the velocity of an electron is 1x10^5 m s^-1. What is the minimum uncertainty in its position?

(A)5.79x10^-5 m

(B)2.31x10^-9 m

(C)5.79x10^-10 m

(D)2.31x10^-10 m

(E)1.08x10^-10 m

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