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Important Questions on Chemical Bonding and Molecular Structure

EASY
Chemistry>Physical Chemistry>Chemical Bonding and Molecular Structure>Ionic or Electrovalent Bond
Explain why the melting point of sodium chloride is much greater than that of glucose.
MEDIUM
Chemistry>Physical Chemistry>Chemical Bonding and Molecular Structure>Ionic or Electrovalent Bond

Why does distilled water not conduct electricity, whereas rain water does? 

EASY
Chemistry>Physical Chemistry>Chemical Bonding and Molecular Structure>Ionic or Electrovalent Bond

Give reasons.

(ii) Ionic compounds have high melting points.

MEDIUM
Chemistry>Physical Chemistry>Chemical Bonding and Molecular Structure>Ionic or Electrovalent Bond
Maximum bond angle at nitrogen is present in which of the following?
EASY
Chemistry>Physical Chemistry>Chemical Bonding and Molecular Structure>Ionic or Electrovalent Bond
Solid state of which of the following compound is composed of ions?
MEDIUM
Chemistry>Physical Chemistry>Chemical Bonding and Molecular Structure>Ionic or Electrovalent Bond
The compound(s) with two lone pairs of electrons on the central atom is (are)
EASY
Chemistry>Physical Chemistry>Chemical Bonding and Molecular Structure>Ionic or Electrovalent Bond
Which of the following compounds can conduct electricity?
MEDIUM
Chemistry>Physical Chemistry>Chemical Bonding and Molecular Structure>Ionic or Electrovalent Bond
Which of the following compounds contain(s) no covalent bond(s)?

KCl, PH3, O2, B2H6, H2SO4
EASY
Chemistry>Physical Chemistry>Chemical Bonding and Molecular Structure>Ionic or Electrovalent Bond
Which of the following has the highest ability to conduct electricity?
MEDIUM
Chemistry>Physical Chemistry>Chemical Bonding and Molecular Structure>Ionic or Electrovalent Bond
Mention the general properties of ionic compounds and clarify that why do ionic compounds have high melting points.
EASY
Chemistry>Physical Chemistry>Chemical Bonding and Molecular Structure>Ionic or Electrovalent Bond
The numbers of lone pair and bond pairs in hydrazine are, respectively:
MEDIUM
Chemistry>Physical Chemistry>Chemical Bonding and Molecular Structure>Ionic or Electrovalent Bond
Why do ionic compounds have high melting points?
MEDIUM
Chemistry>Physical Chemistry>Chemical Bonding and Molecular Structure>Ionic or Electrovalent Bond
Among the following molecules, the one with the largest bond angle at the central atom is
HARD
Chemistry>Physical Chemistry>Chemical Bonding and Molecular Structure>Ionic or Electrovalent Bond
XCl2 is a solid and high melting point compound. X will be 
HARD
Chemistry>Physical Chemistry>Chemical Bonding and Molecular Structure>Ionic or Electrovalent Bond
The lattice energies of NaCl, NaF, KCl and RbCl follow the order
EASY
Chemistry>Physical Chemistry>Chemical Bonding and Molecular Structure>Ionic or Electrovalent Bond
What do you understand by a lone pair of electrons?
EASY
Chemistry>Physical Chemistry>Chemical Bonding and Molecular Structure>Ionic or Electrovalent Bond
Total number of lone pair of electrons in I3- ion is:
MEDIUM
Chemistry>Physical Chemistry>Chemical Bonding and Molecular Structure>Ionic or Electrovalent Bond

Answer the following:

MgCl2 does not conduct electricity in the solid state. Give reasons.

EASY
Chemistry>Physical Chemistry>Chemical Bonding and Molecular Structure>Ionic or Electrovalent Bond
Distinguish between sodium chloride and naphthalene by two physical properties.
MEDIUM
Chemistry>Physical Chemistry>Chemical Bonding and Molecular Structure>Ionic or Electrovalent Bond
Which of the following is most soluble in water?