Entry Test MCQ :: Liquids and Solids
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1. |
Which of the following has strongest intermolecular forces of attraction? |
A. |
Hydrogen (H2) |
B. |
Chlorine (Cl2) |
C. |
lodine (I2) |
D. |
Methane (CH4) |
Answer: Option C
Explanation:
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2. |
Which has strongest bonding in the solid state? |
A. |
Hydrogen Chloride (HCI) |
B. |
Chlorine (Cl2) |
C. |
Xenon(Xe) |
D. |
Sodium Chloride (NaCI) |
Answer: Option D
Explanation:
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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 |
Answer: Option B
Explanation:
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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 |
Answer: Option A
Explanation:
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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 |
Answer: Option A
Explanation:
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6. |
Which one is false for evaporation? |
A. |
Surface phenomenon |
B. |
Continuous |
C. |
Exothermic |
D. |
Cause cooling |
Answer: Option C
Explanation:
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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 |
Answer: Option B
Explanation:
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8. |
Which one of the following does not show hydrogen bonding ? |
A. |
Water |
B. |
Ethyl alcohol |
C. |
Phenol |
D. |
Diethyl ether |
Answer: Option D
Explanation:
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9. |
Liquid crystal is discovered by |
A. |
William Crooks |
B. |
Fredrack Reinitzer |
C. |
J.J Thomson |
D. |
Bravis |
Answer: Option B
Explanation:
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10. |
Which one is a conductor but is not malleable? |
A. |
Iron |
B. |
Graphite |
C. |
Silver |
D. |
Platinum |
Answer: Option B
Explanation:
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