Chemical Bonding Homework Discussion Questions

Chemical Bonding Homework Discussion Questions
Chemical Bonding Homework Discussion Questions
1. What happens when a chemical bond
is formed?
(a) Energy is always absorbed.
(b) Energy is always released.
(c) More energy is released than it
(d) Energy is neither released nor
2. When a chemical bond is formed, there
is decrease in
(a) kinetic energy (b) potential energy
(c) repulsive force (d) attractive force
Chemical Bonding Homework Discussion Questions
3. Which of the following theory said that
bond is formed between two atoms
either by sharing or transfer of valence
(a) Valence shell electron pair repulsion
(b) Molecular orbital theory
(c) Valence bond theory
(d) Electronic theory of chemical bonding
Chemical Bonding Homework Discussion Questions
4. The product of equivalent weight and
valency of an element is equal to
[SSC (10 2) 2013]
(a) vapour density (b) specific heat
(c) atomic weight (d) molecular
5. The number of valence electrons in the
ion is [NDA 2014]
(a) 4 (b)6 (c) 8 (d) 10
6. If formula of sodium salt of an anionX is
Na2X, then the formula of its aluminium
salt would be [Astt. Comm. 2019]
(a) AIX (b) AIX3
(c) AI X2 3 (d) AI X3 2
7. The atomic number of an element is 8.
How many electrons will it gain to form
a compound with sodium? [NDA 2018]
(a) One (b) Two
(c) Three (d) Four
8. Ionic solids
(a) are hard and brittle.
(b) are generally high melting points.
(c) can be melted to form liquids that are
electrical conductors.
(d) All of the above
9. Electrovalent compound’s
(a) melting points are low.
(b) boiling points are low.
(c) conduct current in fused state.
(d) insoluble in polar solvent.
10. The electrovalent compounds is made
up of
(a) electrically charged molecules.
(b) neutral molecules.
(c) neutral atoms.
(d) electrically charged atoms or groups
of atoms.
Chemical Bonding Homework Discussion Questions
11. Electrovalent bond formation depends
(a) ionisation energy
(b) electron affinity
(c) lattice energy
(d) All of the above
12. Examples of ionic bond are
(a) NaCl, KCl, MgF2
, CaCl2
(b) H Cl O N CH 2 2 2 2 2 , , , ,
(c) SO SO O 2 3 3 , ,
(d) H O NH 2 3 ,
13. An atom of sodium loses one electron
and chlorine atom accepts one
electron. This result the formation of
sodium chloride molecule. This type of
molecule will be
(a) coordinate
(b) covalent
(c) electrovalent
(d) metallic bond
14. Molten NaCl is a good conductor of
electricity is due to
(a) free electrons (b) free ions
(c) free molecules (d) None of these
15. With reference to ionic compounds,
consider the following statements.
I. Ionic compounds are insoluble in
II. Ionic compounds in the solid state are
good conductor of electricity.
Which of the statement given above
is/are correct?
(a) Only I (b) Only II
(c) Both I and II (d) Neither I nor II
16. Consider the following statements.
I. Formation of cations occurs by loss of
II. Formation of anions occurs by gain of
Which of the statement given above
is/are correct?
(a) Only I (b) Only II
(c) Both I and II (d) None of these
17. Which of the following contains both
ionic and covalent bond?
(a) H O2
(b) NaOH
(c) C H6 6 (d)CO2
18. How many covalent bonds are present
in a Chloropropane molecule having
molecular formula, C H CI 3 2 ?
[NDA 2020]
(a) 6 (b) 8
(c) 9 (d) 10
19. Which one among the following is a
covalent compound? [SSC 2014]
(a) Calcium chloride
(b) Magnesium fluoride
(c) Sodium chloride
(d) Carbon tetrachloride
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