ENTRANCE TEST – 2013 Multiple Questions and Answers.




6.According to valence shell electron pair repulsion theory, the repulsive forces between the electron pair of central atom of molecule are in the order:
A. Lone Pair - Lone-Pair > Lone Pair - Bond Pair > Bond Pair - Bond Pair
B. Lone Pair - Bond Pair > Lone Pair - Lone Pair > Bond Pair - Bond Pair
C. Bond Pair - Bond Pair > Lone Pair - Lone Pair > Lone Pair - Bond Pair
D. One Pair - Bond Pair > Bond Pair - Bond Pair > Lone Pair - Lone Pair

7. In crystal lattice of ice, each O-atom of water molecule is attached to:
A. Four H-atoms
B. Three H-atoms
C. One H-atom
D. Two H-atoms

8.Heat of formation (∆Hf°) for CO2 is:
A. -394 kJ/mole
B. ) +394 kJ/mole
C. -294 kJ/mole
D. -390 kJ/mole

9.Reactants have high energy than products in:
A. Exothermic reactions
B. Endothermic reactions
C. Photochemical reactions
D. Non-spontaneous reactions

10.If 18.0 g of glucose is dissolved in 1 kg of water, boiling point of this solution should be:
A. 100.52 °C
B. 100.00 °C
C. 100.052 °C
D. Less than 100 °C

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