Neco Model Questions Vol1 2017 Chemistry Question 44

Practice objective / multiple choice question 44 from the 2017 Neco Model Questions Vol1 Chemistry examination.

Neco Model Questions Vol1 2017 Chemistry Objective / Multiple Choice Easy Difficulty
Question 44 NECO_MODEL_QUESTIONS_VOL1 • 2017 • CHEMISTRY • objective

State the type of chemical bond (ionic, polar covalent or non‑polar covalent) expected in each of the following compounds and give the electronegativity difference that justifies the classification: (a) NaCl, (b) HCl, (c) CH$_{4}$. Use Pauling electronegativity values: Na = 0.9, Cl = 3.0, H = 2.1, C = 2.5.

Answer Options

A. NaCl: ionic (ΔEN = 1.5); HCl: polar covalent (ΔEN = 0.9); CH₄: non‑polar covalent (ΔEN = 0.6).
B. NaCl: polar covalent (ΔEN = 2.1); HCl: ionic (ΔEN = 0.9); CH₄: non‑polar covalent (ΔEN = 0.4).
C. NaCl: ionic (ΔEN = 2.1); HCl: polar covalent (ΔEN = 1.2); CH₄: non‑polar covalent (ΔEN = 0.4).
Correct Answer D. NaCl: ionic (ΔEN = 2.1); HCl: polar covalent (ΔEN = 0.9); CH₄: non‑polar covalent (ΔEN = 0.4).
Correct Answer
D
Correct Option:
NaCl: ionic (ΔEN = 2.1); HCl: polar covalent (ΔEN = 0.9); CH₄: non‑polar covalent (ΔEN = 0.4).

About This Question

This is Neco Model Questions Vol1 2017 Chemistry Question 44. It is one of the objective questions from the 2017 Neco Model Questions Vol1 Chemistry examination.

Difficulty level: Easy .

View More Neco Model Questions Vol1 2017 Chemistry Questions More Neco Model Questions Vol1 Practice Questions Back to Questions

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows
Chat with Support