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Chemistry 1488 MCQs [All-Courses]

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oost your exam preparation with our Chemistry MCQs designed for PPSC, FPSC, NTS, OTS, PTS, AJKPSC, BPSC, KPPSC, PMS, CSS, and all competitive exams.
Our content covers Basic Chemistry, Atomic Structure, Periodic Table, Chemical Reactions, Acids & Bases, Organic Chemistry, and everyday chemical concepts.

All Topics  1488

A metallic atom loses its valence electron to form a/an _________?
A an anion
B a cation
C an anion – cation
D none of these​
Correct Answer: a cation
Chemistry is given from ……language ?
A Latin
B Greek
C Arabic
D None of these
Correct Answer: Greek
Atoms of all the elements always contain in nucleus:
A Proton and neutron
B Neutron and electron
C Proton
D Neutron
Correct Answer: Proton
What is the mass of one mole of Iodine?
A 74g
B 254g
C 127g
D 53g
Correct Answer: 254g
The earth absorb radiation in Visible range but emit radiation at the same rate in the:
A Ultra voilet
B Gamma rays
C Infrared
D All of these
Correct Answer: Infrared
Traffic policemen on duty at busy street crossings during heavy traffic rush hours are advised to use:__________?
A Hydrogen tank
B Nitrogen tank
C Oxygen tank
D None of these
Correct Answer: Oxygen tank
The rate of formation of ozone depends on the flux of:
A visible radiation
B Ultra violet radiation
C Infrared radiation
D Gamma rays
Correct Answer: Ultra violet radiation
Polyamides are synthetic polymers commonly known as___________?
A synthetic
B Protein
C Cellulose
D Nylon
Correct Answer: Nylon
How much solar flux absorb by earth’s  surface is used to drive hydrologic cycle:
A 1/2sec
B 1/3rd
C 1/4th
D 1/5th
Correct Answer: 1/3rd
Which one of the following serve as aquatic solar fuel cell:
A Bacteria
B Virus
C Fungi
D Algae
Correct Answer: Algae
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