Here you will find GK MCQ Questions for Chemistry GK with Answers PDF Free Download based on the important concepts and topics given in the textbook as per new exam pattern. This may assist you to understand and check your knowledge about the Chemistry GK. Students also can take a free test of the Multiple Choice Questions of Chemistry GK. Each question has four options followed by the right answer.
Question 1.
When there are two electrons in the same orbital, they have:
A. Same spin
B. Opposite spin
C. Same or opposite spin
D. No spin
Ans: B. Opposite spin
Question 2.
The nuclear particle having no mass and no charge, but only spin is
A. Proton
B. Neutrino
C. Meson
D. Electron
Ans: B. Neutrino
Question 3.
Which one of the following elements is least likely to be found in commercial fertilisers?
A. Nitrogen
B. Phosphorous
C. Potassium
D. Silicon
Ans: D. Silicon
Question 4.
The name of unreactive gas is
A. Carbon dioxide
B. Hydrogen
C. Nitrogen
D. Oxygen
Ans: C. Nitrogen
Question 5.
The antiparticle of an electron is
A. Positron
B. Proton
C. Alpha particles
D. Beta particles
Ans: A. Positron
Question 6.
The orientation of an atomic orbital is governed by
A. Principal quantum number
B. Magnetic quantum number
C. Spin quantum number
D. Azimuthal quantum number
Ans: B. Magnetic quantum number
Question 7.
Which of the following is caused by the higher concentration of Nitrogen and Phosphorous ?
A. Eutrophication
B. Hardness
C. Alkalinity
D. Acidity
Ans: A. Eutrophication
Question 8.
The green colour seen in firework displays is due to the chloride salt of :
A. Sodium
B. Strontium
C. Barium
D. Calcium
Ans: C. Barium
Question 9.
Nucleons are regarded as composites sub-particles known as
A. Mesons
B. Quarks
C. Leptons
D. Photons
Ans: B. Quarks
Question 10.
‘Atomic theory’ of matter was given by
A. Avogadro
B. Dalton
C. Newton
D. Pascal
Ans: B. Dalton
Question 11.
If the sewage is fully oxidized, the nitrogen is in the form of
A. Nitrites
B. Ammonia
C. Nitramines
D. Nitrates
Ans: D. Nitrates
Question 12.
In deep-sea diving, divers use a mixture of gases consisting of oxygen and
A. Hydrogen
B. Nitrogen
C. Argon
D. Helium
Ans: B. Nitrogen
Question 13.
Conduction band electrons have more mobility than holes because they
A. Are lighter
B. Experience collision less frequently
C. Have negative charge
D. Need less energy to move them
Ans: B. Experience collision less frequently
Question 14.
The most suitable unit for expressing nuclear radius is :
A. Nanometre
B. Fermi
C. Angstrom
D. Micron
Ans: C. Angstrom
Question 15.
If all bullets could not be removed from gun shot injury of a man, it may cause poisoning by
A. Mercury
B. Lead
C. Iron
D. Arsenic
Ans: B. Lead
Question 16.
Now-a-days yellow lamps are frequently used as street lights. Which of the following gases is used in these lamps ?
A. Sodium
B. Neon
C. Hydrogen
D. Nitrogen
Ans: A. Sodium
Question 17.
Which one of the following has greatest mass ?
A. Electron
B. Proton
C. Neutron
D. Hydrogen nucleus
Ans: C. Neutron
Question 18.
The total energy of revolving electron in an atom
A. Cannot be negative
B. Can have any value above zero
C. Can never be positive
D. Will always be positive
Ans: C. Can never be positive
Question 19.
Extensively used nitrogenous fertilizer is
A. Ammonium nitrate
B. Urea
C. Ammonium sulphate
D. Nitro-lime
Ans: B. Urea
Question 20.
Which of the following is not soluble in water ?
A. Lead Sulphate
B. Zinc sulphate
C. Potassium sulphate
D. Sodium sulphate
Ans: B. Zinc sulphate
Chemistry GK MCQs all set
- Chemistry GK MCQs Set-1
- Chemistry GK MCQs Set-2
- Chemistry GK MCQs Set-3
- Chemistry GK MCQs Set-4
- Chemistry GK MCQs Set-5
- Chemistry GK MCQs Set-6
- Chemistry GK MCQs Set-7
- Chemistry GK MCQs Set-8
- Chemistry GK MCQs Set-9
- Chemistry GK MCQs Set-10
- Chemistry GK MCQs Set-11
- Chemistry GK MCQs Set-12
- Chemistry GK MCQs Set-13
- Chemistry GK MCQs Set-14
- Chemistry GK MCQs Set-15
- Chemistry GK MCQs Set-16
- Chemistry GK MCQs Set-17
- Chemistry GK MCQs Set-18
- Chemistry GK MCQs Set-19
- Chemistry GK MCQs Set-20
- Chemistry GK MCQs Set-21
- Chemistry GK MCQs Set-22
- Chemistry GK MCQs Set-23
- Chemistry GK MCQs Set-24
- Chemistry GK MCQs Set-25
- Chemistry GK MCQs Set-26
- Chemistry GK MCQs Set-27
- Chemistry GK MCQs Set-28
- Chemistry GK MCQs Set-29
- Chemistry GK MCQs Set-30
- Chemistry GK MCQs Set-31
- Chemistry GK MCQs Set-32
- Chemistry GK MCQs Set-33
- Chemistry GK MCQs Set-34
- Chemistry GK MCQs Set-35
- Chemistry GK MCQs Set-36
- Chemistry GK MCQs Set-37
- Chemistry GK MCQs Set-38
- Chemistry GK MCQs Set-39
- Chemistry GK MCQs Set-40
- Chemistry GK MCQs Set-41
- Chemistry GK MCQs Set-42
- Chemistry GK MCQs Set-43
- Chemistry GK MCQs Set-44
- Chemistry GK MCQs Set-45
- Chemistry GK MCQs Set-46
- Chemistry GK MCQs Set-47
- Chemistry GK MCQs Set-48
- Chemistry GK MCQs Set-49
- Chemistry GK MCQs Set-50
- Chemistry GK MCQs Set-51
- Chemistry GK MCQs Set-52
- Chemistry GK MCQs Set-53
- Chemistry GK MCQs Set-54
- Chemistry GK MCQs Set-55
- Chemistry GK MCQs Set-56
- Chemistry GK MCQs Set-57
- Chemistry GK MCQs Set-58
- Chemistry GK MCQs Set-59
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