Which of the following is a characteristic property of ionic compounds? MCQ with Answer and Explanation

Which of the following is a characteristic property of ionic compounds?
A. They are soluble in water and conduct electricity in molten or aqueous state.
B. They have low melting and boiling points.
C. They are good conductors of electricity in the solid state.
D. They are soluble in non-polar solvents like benzene.
Answer: Option A
Solution (By JKExamLibrary)
Ionic compounds are soluble in polar solvents like water. In the solid state, ions are fixed in a lattice and cannot move, so they don't conduct. However, in molten or aqueous states, the ions become free to move, allowing them to conduct electricity. They generally have high melting points.

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More chemistry Questions

Question #1
The acid present in ant sting is:
A. Lactic acid
B. Citric acid
C. Formic acid
D. Acetic acid

Correct Answer: Option C


Explanation:
Ant sting contains formic acid (methanoic acid, HCOOH), causing irritation. Nettle sting also contains formic acid. To neutralize, apply a base like baking soda. Acetic acid is in vinegar, citric acid in citrus fruits, lactic acid in sour milk and muscles. Formic acid is the simplest carboxylic acid.

This question belongs to: Science chemistry
Question #2
Which of Faraday's laws of electrolysis states that the mass of substance deposited is directly proportional to the quantity of electricity passed?
A. Law of Conservation of Mass
B. Second Law
C. Third Law
D. First Law

Correct Answer: Option D


Explanation:
Faraday's First Law of Electrolysis states that the mass of a substance deposited or liberated at an electrode is directly proportional to the total charge (Q) passed through the electrolyte (m = ZQ, where Z is the electrochemical equivalent). The Second Law relates mass to equivalent weight.

This question belongs to: Science chemistry
Question #3
During the electrolysis of acidified water, the volume ratio of hydrogen to oxygen collected is:
A. 1:1
B. 1:2
C. 3:1
D. 2:1

Correct Answer: Option D


Explanation:
Water decomposes as 2H₂O → 2H₂ + O₂. So 2 volumes of H₂ for every 1 volume of O₂, ratio 2:1. Hydrogen collected at cathode, oxygen at anode.

This question belongs to: Science chemistry