Entry Test MCQ :: Liquids and Solids

1.  Which of the following has strongest intermolecular forces of attraction?
A. Hydrogen (H2) B. Chlorine (Cl2)
C. lodine (I2) D. Methane (CH4)

2.  Which has strongest bonding in the solid state?
A. Hydrogen Chloride (HCI) B. Chlorine (Cl2)
C. Xenon(Xe) D. Sodium Chloride (NaCI)

3.  When substance moves from a solid to a liquid state all of the following changes occur except
A. Molecules become more disordered B. K.E of the molecules decreases
C. Intermolecular forces become weaker D. Molecule become further separated

4.  When the atoms of third layer are arranged in such a way that they directly lie above the atoms of first layer then this arrangement is called
A. ABAB (hexagonal) B. ABCABC (Cubic)
C. Orthor hombic D. Rhombohedral

5.  In order to mention the boiling point of water at 110?C the external pressure should be
A. Between 760 torr and 1200 torr B. Between 200 torr and 760 torr
C. 765 torr D. any value of pressure

6.  Which one is false for evaporation?
A. Surface phenomenon B. Continuous
C. Exothermic D. Cause cooling

7.  Vapour pressure of water at 100?C is
A. 55 mm Hg B. 760 mm Hg
C. 355 mm Hg D. 1489 mm Hg

8.  Which one of the following does not show hydrogen bonding ?
A. Water B. Ethyl alcohol
C. Phenol D. Diethyl ether

9.  Liquid crystal is discovered by
A. William Crooks B. Fredrack Reinitzer
C. J.J Thomson D. Bravis

10.  Which one is a conductor but is not malleable?
A. Iron B. Graphite
C. Silver D. Platinum

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