- Chemistry Notes for UPSC IAS Prelims (Part I)
- Chemistry - Home
- Matter In Our Surroundings
- Is Matter Around Us Pure
- Chemistry - Atoms & Molecules
- Chemistry - Structure Of The Atom
- Chemical Reactions and Equations
- Chemistry - Acids, Bases, and Salts
- Materials: Metals and Non-Metals I
- Chemistry - Metals & Non-Metals II
- Carbon & its Compounds
- Periodic Classification Of Elements
- Synthetic Fibres and Plastics
- Chemistry - Coal And Petroleum
- Chemistry - Combustion And Flame
Chemistry Part 1 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
N/A
Q 2 - The concept of Quantization of Energy was defined by …
Answer : C
Explanation
Niels Bohr first proposed his model in 1913.
Q 3 - Consider the following statements:
1. Compounds are the pure substances those are composed of two or more different elements in fixed proportion by mass.
2. The properties of a compound are completely different from those of the elements from which it is made.
Choose the correct answer from the codes given below:
Answer : C
Explanation
Examples of compound are Salt, Sugar, Water etc.
Q 4 - If someone reduces the volume of gas at a constant temperature, what will be the impact on pressure?
Answer : A
Explanation
N/A
Q 5 - …………… is a radioactive isotope of hydrogen.
Answer : A
Explanation
Tritium consists of one proton, two neutrons, and one electron.
Q 6 - Primarily, the group of hydrogen, ……………., and ……………. were responsible for the origin of life.
Answer : A
Explanation
However, there is no concrete evidence on this account, as there are different views on the same.
Q 7 - What is chemical name of Philosopher’s wool?
Answer : B
Explanation
Philosophers' Wool means white snow.
Q 8 - Which among the following is used in making red glass?
Answer : A
Explanation
Copper I oxide is also used in making red glass.
Q 9 - Consider the following statements:
1. Vinegar contains about 60 percent acetic acid.
2. Acetylene is used for light production.
Choose the correct answer from the codes given below:
Answer : B
Explanation
Vinegar contains about 10 percent acetic acid.
Answer : B
Explanation
Atomic number of Iodine is 53.
Answer : B
Explanation
Atomic number of Astatine is 85.
Answer : C
Explanation
Atomic number of Chromium is 24.
Answer : C
Explanation
Atomic number of Cobalt is 27.
Answer : B
Explanation
Atomic number of Bromine is 35.
Answer : A
Explanation
It is also present in the venom by honey bee.
Q 16 - Which among the following is a white pigment?
Answer : D
Explanation
N/A
Q 17 - Which one of the following is used in pencil?
Answer : A
Explanation
Normally, pencil cores are manufactured of graphite mixed with a clay binder that leaves grey or black marks, which can be easily erased.
Q 18 - Which among the following is used in making blue glass?
Answer : D
Explanation
Cobalt II oxide is also used in making glass blue.
Q 19 - The process, by which ice directly changed into gas, is known as …
Answer : B
Explanation
N/A
Q 20 - In reference to Modern periodic table, consider the following statements:
1. s-block elements are known as Alkali & Alkaline.
2. p-block elements are known as inert gas
Choose the correct answer from the codes given below:
Answer : C
Explanation
N/A
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