Chemistry, from the Greek word χημεία (khēmeia) meaning “cast together” or “pour together”, is the science of matter at the atomic to molecular scale, dealing primarily with collections of atoms, such as molecules, crystals, and metals.
Chemistry is given from ……language ? Read More »
Chemistry Mcqs A. Proton and neutron
B. Neutron and electron
C. Proton
D. Neutron
Atoms of all the elements always contain in nucleus: Read More »
Chemistry Mcqs A. 74g
B. 254g
C. 127g
D. 53g
What is the mass of one mole of Iodine? Read More »
Chemistry Mcqs A. Ultra voilet
B. Gamma rays
C. Infrared
D. All of these
The earth absorb radiation in Visible range but emit radiation at the same rate in the: Read More »
Chemistry Mcqs A. Hydrogen tank
B. Nitrogen tank
C. Oxygen tank
D. None of these
Traffic policemen on duty at busy street crossings during heavy traffic rush hours are advised to use oxygen tanks in developed countries
A. visible radiation
B. Ultra violet radiation
C. Infrared radiation
D. Gamma rays
The rate of formation of ozone depends on the flux of: Read More »
Chemistry Mcqs A. synthetic
B. Protein
C. Cellulose
D. Nylon
Polyamides are synthetic polymers commonly known as___________? Read More »
Chemistry Mcqs A. 1/2sec
B. 1/3rd
C. 1/4th
D. 1/5th
How much solar flux absorb by earth’s surface is used to drive hydrologic cycle: Read More »
Chemistry Mcqs A. Bacteria
B. Virus
C. Fungi
D. Algae
Which one of the following serve as aquatic solar fuel cell: Read More »
Chemistry Mcqs A. Einstein
B. Dr.A.Walash
C. Schwartz
D. S.E.Manhan
Who used the term Concentrationwindow to draw the arbitrary lines of demarcation Read More »
Chemistry Mcqs