Types of Bonds

Chemical Bonds - 1

15 Questions Published

Questions

Question 1 Multiple Choice (Single Answer)

Which of the following elements has a complete octet of electrons?

  1. Fluorine
  2. Oxygen
  3. Krypton
  4. Lithium
Question 2 Multiple Choice (Single Answer)

Which of the following statements is true according to the octet theory?

  1. During bond formation, the elements have a tendency to acquire unstable configuration.
  2. During bond formation, the elements merely change their configuration.
  3. During bond formation, the elements tend to acquire a noble gas configuration.
  4. None of these
Question 3 Multiple Choice (Single Answer)

Which of the following pairs will form the most stable ionic bond?

  1. Na and Cl
  2. Mg and F
  3. Li and F
  4. Na and F
Question 4 Multiple Choice (Single Answer)

Carbon has 4 valence electrons and an element X has 7 valence electrons. What will be chemical formula of their saturated molecule formed by covalent bonding?

  1. C4X7
  2. CX4
  3. C2X4
  4. CX7
  5. C7X4
Question 5 Multiple Choice (Single Answer)

Among the given compounds H is covalent bonded in case of

  1. BaH2
  2. CaH2
  3. SiH4
  4. NaH
Question 6 Multiple Choice (Single Answer)

Which among the following compounds possesses molecules having both covalent and ionic bonds?

  1. Sodium hydroxide
  2. Sodium chloride
  3. Carbon dioxide
  4. Water
Question 7 Multiple Choice (Single Answer)

The atomic numbers of four elements A, B, C and D are 6, 8, 10 and 12, respectively. The two elements which can react to form ionic bonds (or ionic compounds) are

  1. A and D
  2. B and C
  3. A and C
  4. B and D
Question 8 Multiple Choice (Single Answer)

An ionic bond A+ Bis most likely to be formed when

  1. the ionisation energy of A is high and the electron affinity of B is low
  2. the ionisation energy of A is low and the electron affinity of B is high
  3. the ionisation energy of A and the electron affinity of B is high
  4. the ionisation energy of A and the electron affinity of B is low
Question 9 Multiple Choice (Single Answer)

Which of the following options is the best test to distinguish between ionic compounds and covalent compounds?

  1. Difference in their boiling points
  2. Solubility
  3. Conductivity
  4. None of these
Question 10 Multiple Choice (Single Answer)

Consider the following statements in respect of covalent compounds:

  1. They are bad conductors of electricity.
  2. They are all liquids at room temperature.
  3. They do not show isomerism.

Which of the statements given above is/are correct?

  1. Only 1
  2. Only 1 and 2
  3. Only 1 and 3
  4. Only 2
Question 11 Multiple Choice (Single Answer)

Which of the following are characteristic property/properties of covalent compounds?

  1. They are hard, crystalline solids.
  2. They exist as soft solids, liquids or gases.
  3. They are good conductors of electricity in molten state.
  4. They are soluble in water.
  5. They have low melting and boiling points.
  1. Only 1 and 4
  2. Only 3 and 5
  3. Only 1 and 5
  4. Only 2 and 5
Question 12 Multiple Choice (Single Answer)

Which of the following have coordinate covalent bonds?

  1. Br2 and HCl
  2. Cl2 and F2
  3. NH4+ and H3O+
  4. FeCl3 and H2SO4
Question 13 Multiple Choice (Single Answer)

As compared to covalent compounds, the electrovalent compounds generally have

  1. high melting point and high boiling point
  2. low melting point and low boiling point
  3. low melting point and high boiling point
  4. high melting point and low boiling point
Question 14 Multiple Choice (Single Answer)

Which of the following is not a correct difference between electrovalent and covalent compounds?

  1. Electrovalent compounds have strong electrostatic forces of attraction whereas covalent compounds have weak electrostatic forces of attraction.
  2. Electrovalent compounds are volatile whereas covalent compounds are non-volatile.
  3. Electrovalent compounds are good conductors of electricity whereas covalent compounds are non-conductors.
  4. Electrovalent compounds are soluble in water whereas covalent compounds are insoluble in water.
Question 15 Multiple Choice (Single Answer)

Which of the following statements is incorrect?

  1. KCl is soluble in water.
  2. HCl conducts electricity in its aqueous solution.
  3. Acetic acid is soluble in water.
  4. The bond formed between aluminum and fluorine is covalent.