Senin, 05 Desember 2011

SOAL UTS KELAS XI IPA



THE MIDDLE TEST OF CHEMISTRY Class XI
SMA N 1 TEBING TINGGI

Multiple Choice
Read and solve the problems accurately. Then,choose the best answer. Be yourself and good luck

  1. The main idea of Niel’s Bohr atomic theory is about …..
A.    Energy level in atom
B.     Particle waves
C.     Light particle
D.    Orbital
E.     The uncertainty principle

  1. Among these sets of quantum numbers, which is not allowed…..
A.    n = 1 l = 0 m = 0 s = +½
B.     n = 2 l = 1 m = +1 s = +½
C.     n = 3 l = 0 m = +1 s = +½
D.    n = 3 l = 1 m = -1 s = +½
E.     n = 2 l = 0 m = 0 s = +½

  1. Among these sets of quantum number that is allow for electron with is higher energy levels of 15 P elements are……..
A.    n = 3 l = 1 m = -2 s = -½
B.     n = 3 l = 1 m = +1 s = +½
C.     n = 3 l = 2 m = +1 s = +½
D.    n = 3 l = 2 m = 0  s = +½
E.     n = 2 l = 1 m = -1 s = -½

4.    Magnetic quantum numbers states......
       A. Orbital
       B. shell
 C. Subshell
 D. Direction of spins
 E. Probability to find electrons

5.   All electrons that include into d subshell must be have quantum number, except..
      A. n = 3           B. m = 2          C. l = 2            D. n = 4           E. s =

6.   Among these group of elements that include in f block is........
      A. Alkaline      B. Actinide     C. Halogen      D. Noble gas   E. Earth alkaline



7.   The filling of electrons in orbitals in p subshell that does not follow the Hund’s                  Rule is …..
       
­
­

­¯
­
­

­¯
­

­¯
­¯
­¯

­
­
­

8.   An orbital can be occupied by a maximum of two electrons wits opposing spins. This statements is according to……
   A. Hund’s Rule          
   B. Aufbau’s principle    
   C.Pauli’s exclusion principle
   D. Heisenberg’s principle
   E. The Broglie’s hypothesis

  1. Based on electrons configuration of X3+ : 1s2 2s2 2p6 3s2 3p2 . X elements include into groups and periods….
      A. VA / 3        B. IIA / 3        c. VIA / 4        D. VIIA / 3     E. IVA / 3

  1. 28X elements include into groups....
            A. IIB             B. VIIIB         C. XB              D. IVB                        E. VIB

  1. According to the electrons domain theory XeOF4 compound has an ….. formula
      A. AX5E         `B. AX4E2         C. AX3E2         D. AX4E         E. AX2E2

  1. Based on the Hybridization Theory, the type of hybrid orbitals in covalent     bonding in the BCl3 molecule is……
      A. sp                B. sp3               C. sp3d2                D. sp2                         E. sp3d

13. The arrangement of higher boiling point in halogen groups is…..
      A. HCl < HBr < HI < HF
      B. HF > HCl > HBr > HI
      C. HI > HF > HBr > HCl
      D. HI < HF < HBr < HCl
      E. HBr > HI > HF > HCl

14. If matter and energy are allowed to cross from the system to the surrounding, it is             the definition of….
      A. Isolated system
      B. Insulated system
      C. Closed system
      D. Open system
      E. Adiabatic system

15. The characteristic of exothermic reaction are ….
      A. Surrounding absorb heat from system
      B. System absorb heat from surrounding
      C. System and surrounding have same number of heat
      D. The number of heat system and surrounding is equals zero
      E. The final reaction, the heat of surrounding is less than heat of system
16. Among of these reactions :
      (1). Photosynthesis                              (4). Melting
      (2). Combustion                                  (5). Thermal decomposition
      (3). Respiration
      The examples of endothermic are ….
A.    (1) , (2) and (3)
B.     (1) , (4) and (5)
C.     (2) , (3) and (5)
D.    (2) , (3) and (4)
E.     (1) , (3) , (4) and (5)

17. standard enthalpy change of formation of NH4Cl(s) is -314,4kJ mol-1. which         thermochemical  equation below is accurate?
a. NH3(g)  +  HCl(g)             ®  NH4Cl(s)                 H = -314.4KJ
b. NH4+(g)  +  Cl-(g)                                 ® 2NH4Cl(s)                H = -314.4KJ
c. N2(g)  +  4H2(g)  + Cl2(g)                ® 2NH4Cl(s)                H = -628.8kJ
d. NH3(g)  + 1/2H2(g)  +  ½ Cl2(g)       ® NH4Cl(s)               H = -314.4kJ
e. N2(g)  +  3H2(g)  + 2HCl(g)            ® 2NH4Cl(s)                H = -628kJ

18. take a look at the following  thermochemical equation:
      H2(g)  + O2(g)     ®  H2O2(l)                   ∆H = -187.8kJ
Based on the  ∆H value above, the ∆H value of the decomposition reaction of H2O2 is…
  1. + 93.9Kj                      d. -375.6kJ
  2. -187.8kJ                      e. + 375.6kJ
  3. +187.8kJ
19.     Given that H0f values fo NH3(g), NO(g), and H2O(g) are -46.2, +90.4, and -286kJ/mol, the H for the oxidation of ammonia in the following reaction is….
 4NH3(g)  +  5O2(g)  ®  4NO(g)  +  6H2O(l)
  1. -149.4kJ                                  d. -1,169.6kJ
  2. +330.2kJ                                 e. – 1,892.8kJ
  3. -597.6kJ
20.     known:
2S  +  3O2               2SO3                      ∆H= -790kJ
2S  + 3O2                2SO2  + O2                            ∆H = -593kJ
2SO2  + O2                          2SO3                      ∆H = xkJ

Find the value of x...
  1. 197kJ               c.  + 1383kJ     e. -19.7kJ
  2. -197kJ             d. – 1383kJ

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