Chemistry MCQs
Practice free Chemistry multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 1238 questions — no login required.
Question 127easy
Which one of the following metals is used to galvanise iron ?
Question 128hard
A non-electronic conductor is
Question 129hard
The anode of a dry cell is made up of
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Question 130medium
The coating of a thin layer of zinc on steel or iron objects is known as
Question 131hard
A potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed?
Question 132hard
An electrochemical cell which is used as a source of direct electrical current at constant voltage under standard conditions is called a :
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Question 133medium
The metals commonly used for electroplating are
Question 134hard
In galvanization, iron is coated with
Question 135medium
The process of improving the quality of rubber by heating it with sulphur is called