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 28medium
The luster of a metal is due to
Question 29hard
The number of water molecules present in a drop of water (volume 0.0018 ml) at room temperature is
Question 30easy
The most malleable metal is
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Question 31medium
The oil used in the froth floatation process is
Question 32medium
The number of waves in n x 10th Bohr's orbit are
Question 33hard
The mass of one Avogadro number of helium atom is
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Question 34medium
The items amenable to detection by soft x-rays are
Question 35medium
The material which can be deformed permanently by heat and pressure is called a
Question 36medium
The mass number of a nucleus is