ENTRANCE TEST – 2011 Multiple Questions and Answers.




6.The ability of an atom in a covalent bond to attract the bonding electrons is called:
A. Ionization energy
B. Ionic bond energy
C. Electronegativity
D. Electron affinity

7.The paramagnetic character of a substance is due to:
A. Bond pairs of electrons
B. Lone pairs of electrons
C. Unpaired electrons in atom or molecule
D. Paired electrons in valence shells of electrons

8.Lattice energy of an ionic crystal is the enthalpy of:
A. Combustion
B. Dissociation
C. Dissolution
D. Formation

9.In standard enthalpy of atomization, heat of the surrounding:
A. Remains unchanged
B. Increases
C. Increases than decreases
D. Decreases

10.Mole fraction of any compound us the ratio of moles of all components in a:
A. Compound
B. Solution
C. Molecule
D. Solid

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