The behavior of PbCl and PbCl2 respectively are:
Correct answer: A. ionic and covalent
- A. ionic and covalent
- B. covalent and ionic
- C. covalent and coordinate covalent
- D. ionic and coordinate covalent
Explanation
The correct answer is 'ionic and covalent'. PbCl₂ is ionic because lead is in a +2 oxidation state, leading to electron transfer and ionic bond formation with chlorine. In contrast, PbCl4 is covalent because lead is in a +4 oxidation state, which increases its polarizing power, favoring electron sharing and covalent bond formation. Options B, C, and D are incorrect as they either reverse the bond types or incorrectly identify the bond types in PbCl₂ and PbCl4.
Last updated
About Ionic and Molecular Crystals
Ionic crystals contain oppositely charged ions held by electrostatic forces, whereas molecular crystals contain discrete molecules joined by weaker intermolecular forces. Their structures explain differences in melting point, hardness, volatility, solubility and electrical conductivity, especially between solid and molten states.
Practise Solids
357 free Solids MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemistry questions like this
Chemistry is on 12 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
A solid melts sharply just above 100 degree centigrade. It does not conduct electricity even when molten. It has weak Vander waal's forces. What is the structure of the solid most likely to be?
All3 (Aluminium Iodide) is electrically a _
Among halogens, iodine is solid at room temperature while Br2 is liquid and CI and F are gases at room temperature, why?
An example of a non-polar molecular crystal is _.
Boiling Points of Polar Molecular solids are