Charge of electron was measured by__________________?
Charge of electron was measured by__________________?
A. J.J Thomson
B. Millikan
C. Rutherford
D. Perrin
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The concept of telluric helix was developed by___________?
The concept of telluric helix was developed by___________?A. Lother Meyer
B. A.E de Chancourtois
C. Newland
D. DobereinerWhich is used for artificial ripening of fruit ?
Which is used for artificial ripening of fruit ?A. ethane
B. ethene
C. ethyne
D. methaneHydrogenolysis results in the formation of________________?
Hydrogenolysis results in the formation of________________?A. alkane
B. alkene
C. alkyne
D. aldehydesSum of protons and neutrons in an atom gives off _________ ?
Sum of protons and neutrons in an atom gives off _________ ?A. Nucleon numbera
B. Mass number
C. Atomic number
D. Both A and BWhich of the following is macronutrient ?
Which of the following is macronutrient ?A. Cu
B. Cl
C. H
D. ZnSoap is prepared by boiling caustic soda with ___________?
Soap is prepared by boiling caustic soda with ___________?A. Alcohol
B. Kerosene oil
C. Glycerine
D. Fats