General Awareness Quiz – Chemistry

General Awareness Quiz Set 94 for SSC CGL, SSC CHSL and Railways exams. Chemistry Quiz for SSC CGL, SSC CHSL, Railways etc.

Topic: General Science- Chemistry

1. For a spontaneous chemical process, the free energy change is
   (A) Positive
   (B) Negative
   (C) Zero
   (D) Depends on whether the reation is exothermic or endothermic
   
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     Option B.
   Explanation:Negative.
2. Emulsifier is an agent which
   (A) Accelerates the dispersion
   (B) Homogenizes the emulsion
   (C) Stabilizes an emulsion
   (D) Aids the flocculation of emulsion
   
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     Option C.
   Explanation:Stabilizes an emulsion.
3. A subshell with l=2 can take up
   (A) 3 electron
   (B) 5 electron
   (C) 8 electron
   (D) 10 electron
   
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     Option D.
   Explanation:10 electron.
4. The element with highest ionization potential is
   (A) Oxygen
   (B) Carbon
   (C) Helium
   (D) Boron
   
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   Option C.
   Explanation: Helium.
5. Which of the following has no unit
   (A) Electro negativity
   (B) Electron affinity
   (C) Ionization energy
   (D) Excitation potential
   
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     Option A.
   Explanation: Electro negativity.
6. Which one of the following is most acidic
   (A) Al2O₃
   (B) Na₂O
   (C) MgO
   (D) CaOhCaO
   
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     Option A.
   Explanation:Al2O₃.
7. Which of the following has the highest lattice energy
   (A) KF
   (B) CsF
   (C) NaF
   (D) RbF
   
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   Option C.
   Explanation: NaF.
8. The structure of NaCl crystal is
   (A) Body centered cubic
   (B) Face centered cubic
   (C) Octahedral
   (D) Square planar
   
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     Option B.
   Explanation:Face Centered Cubic.
9. The coordination number of body centered atom in cubic structure is
   (A) 4
   (B) 6
   (C) 8
   (D) 10
   
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     Option C.
   Explanation: 8.
10. Colloids can be purified by
    (A) Condensation
    (B) Condensation
    (C) Condensation
    (D) Dialysis
    
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      Option D.
    Explanation:Dialysis.

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