Chemistry GK Quiz Questions
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Chemistry GK Quiz
In this Chemistry GK Quiz Questions blog, we've compiled a collection of thought-provoking and informative general knowledge questions related to chemistry. These questions cover a wide spectrum of topics, from the periodic table and chemical compounds to famous chemists and groundbreaking discoveries for upcoming competitive and government exams.
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Chemistry GK Quiz Questions
Q : Which of the following will be a negative ion?
(A) If it has more electrons than protons
(B) If it has more electrons than neutrons
(C) If it has more protons than electrons
(D) If it has more protons than neutrons
Correct Answer : B
Explanation :
If an atom has more electrons than protons, it is a negative ion or anion. If it has more protons than electrons, it is a positive ion.
The __nature of the bond between two atoms is greater if the difference in their electronegativity is less.
(A) polar
(B) metallic
(C) ionic
(D) covalent
Correct Answer : D
Explanation :
When the difference in electronegativity between two atoms is very high then an ionic bond is formed.
__ is a microparticle which does not have any electric charge.
(A) electron
(B) proton
(C) neutron
(D) all options are correct
Correct Answer : C
Explanation :
Atom: The smallest particle of any element which has all the chemical and physical properties of that element,
Is called atom. An atom consists of three subatomic particles: the electron, the proton, and the neutron. Protons and neutrons reside in the nucleus and electrons move around the nucleus on a particular path.
The electron has a negative charge on itself and the proton has a positive charge.
The neutron is neutral.
The atomic number of an atom of an element is 17 and the mass is 36. What is the number of neutrons in its nucleus?
(A) 17
(B) 19
(C) 36
(D) 53
Correct Answer : B
Explanation :
An atom of an element has atomic number 17 and mass number 36. The number of neutrons in its nucleus is 19.
The electron configuration of the atom with the atomic number '20' is?
(A) 2, 8, 10
(B) 2, 6, 8, 4
(C) 2, 8, 8, 2
(D) 2, 10, 8
Correct Answer : C
Explanation :
The electronic configuration of the element with atomic number 20 is 2, 8, 8, 2.
The element with an atomic number of 20 is Calcium, Ca.
The electron configuration is found using the Aufbau principle: 1s2, 2s2, 2p6, 3s2, 3p6, 4s2
It belongs to the 2nd group and 4th period.
Which of the following will not be helpful in the process of separating a mixture of salt and water?
(A) Decantation
(B) Filteration
(C) Distillation
(D) Boiling
Correct Answer : A
Explanation :
Distillation, Boiling and Filteration (reverse osmosis) are helpful to separate the mixture of salt and water. Decantation only separates insoluble solids that settle on the bottom; thus, it cannot be used to separate a mixture of salt and water.
If a person is shot with a gun and all the bullets are not removed from his body, then due to which of the following poison will spread in his body?
(A) Mercury
(B) Lead
(C) Iron
(D) Arsenic
Correct Answer : B
Explanation :
If a person is injured by shot of gun and all the bullets could not be removed it may cause poisoning by Lead As.
What is the mass of one mole of a substance in grams called?
(A) Nuclear mass
(B) Atomic mass
(C) Molar mass
(D) Molecular mass
Correct Answer : D
Explanation :
The mass of one mole of a substance in grams is called its molar mass.
"X" is a chemical present in our stomach and is necessary for digestion of food. When 'X' is secreted in excess, it causes health problems like indigestion. 'Y' is a chemical used to treat this condition. What could be 'X' and
(A) X is hydrochloric acid & Y is sodium carbonate.
(B) X is the milk of magnesia & Y is hydrochloric acid.
(C) X is hydrochloric acid & Y ismilk of magnesia.
(D) X is milk of magnesia & Y is ascorbic acid.
Correct Answer : C
Explanation :
Hydrochloric Acid:
It creates the acidic conditions necessary for the action of the enzyme pepsin.
The function of hydrochloric acid is to kill bacteria and pathogens. When hydrochloric acid is secreted in excess, it causes health problems like indigestion.
Excessive secretion of stomach acid can also lead to the formation of peptic ulcers.
The difference between the isotopes of an element is due to the presence of different numbers of
(A) Proton
(B) Newton
(C) Electron
(D) Photon
Correct Answer : B
Explanation :
Isotopes are atoms of the same element that have different numbers of neutrons but the same number of protons and electrons. The difference in the number of neutrons between the various isotopes of an element means that the various isotopes have different masses.
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