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Chemistry Part 2 Online Quiz
Following quiz provides Multiple Choice Questions (MCQs) related to Chemistry. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.
Answer : C
Explanation
Atomic number of Cadmium is 48.
Q 2 - Which among the following statements correctly defines Cosmic Rays?
A - It is negatively charged particles
Answer : A
Explanation
Travelling through the space, cosmic rays are highly energetic atomic nucleus.
Q 3 - Which among the following gases is used in electric bulbs and tubes?
Answer : C
Explanation
Argon and Xenon are also used in electric bulbs and tubes.
Q 4 - Which among the following is used as a stabilizer in plastics?
Answer : C
Explanation
The chemical formula of Strontium hydroxide is [Sr(OH)2].
Q 5 - In reference to periodic table, pnictogens belong to
Answer : C
Explanation
N/A
Answer : B
Explanation
N/A
Answer : B
Explanation
Atomic number of Nitrogen is 7.
Q 8 - waves are used in sonography.
Answer : B
Explanation
Sonography is a medical technique to see the internal body structures such as tendons, muscles, etc.
Q 9 - Which among the following minerals is used in the Talcom powder?
Answer : A
Explanation
N/A
Q 10 - Which among the following is used in RDX to increase the temperature and the speed of fire?
Answer : A
Explanation
RDX is also popular as plasticizer; it is highly explosive.
Q 11 - Consider the following statements:
1. Air is removed from the electric to prevent oxidation of tungsten.
2. Zirconium burns in nitrogen as well as in oxygen.
Choose the correct answer from the codes given below:
Answer : C
Explanation
N/A
Answer : C
Explanation
Atomic number of Iron is 26.
Q 13 - Which among the following is used in preparing waterproof clothe?
Answer : A
Explanation
N/A
Answer : B
Explanation
Atomic number of Bromine is 35.
Q 15 - Which one of the following is responsible for nuclear fission?
Answer : C
Explanation
In the process of nuclear fission, one atom splits into two atoms and releases energy.
Q 16 - Calcium carbide is used in
Answer : A
Explanation
Calcium carbide is also used in calcium cyanide. The chemical formula of calcium carbide is CaC2.
Q 17 - Which among the following gases is used in anesthetic in dental surgery?
Answer : D
Explanation
N/A
Q 18 - Which among the following gases is used in food refrigeration?
Answer : D
Explanation
N/A
Q 19 - Consider the following statements:
1. A molecule is the smallest particle of an element or compound.
2. A molecule has no independent existence.
Choose the correct answer from the codes given below:
Answer : A
Explanation
A molecule can have a stable and independent existence e.g. N2, O2, etc.
Q 20 - The process, used to make industrial hydrogen by passing steam over white-hot coke, is known as
Answer : B
Explanation
The process is developed by German chemist, Carl Bosch.