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 343hard
Which among the following is pure matter ?
Question 344hard
The National Chemical Laboratory (India) is located in
Question 345easy
Who is known as the 'father of modern chemistry'?
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Question 346medium
Spirit in contact with body gives cool sensation because it is :
Question 347easy
Which one is a sublime substance?
Question 348hard
The biogas used for cooking is a mixture of which of the following?
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Question 349easy
The major constituent of gobar gas is
Question 350medium
________ is a by product of sewage treatment and can be decomposed to produce biogas
Question 351medium
Which of the following is a renewable source of energy ?