The organic compound used as antiknock agent in petroleum is____________?
A. (C2H5 )4Pb B. TNT C. CH MgBr3 D. C2H5 )2Hg
Chemistry MCQs
Octane number is 0 value for ___________?
A. iso-octane B. n-hexane C. n-heptane D. iso-heptane The correct answer to the question: “Octane number is 0 value for ___________?” is “n-heptane “.
The salt that gives the aqueous solution with pH less than 7, is called as____________?
A. Basic salt B. Acidic salt C. Neutral salt D. Amphoteric salt A salt that gives an aqueous solution with a pH less than 7 is called an acidic salt: The pH scale measures the concentration of hydrogen ions in a solution, and a pH of less than 7 indicates an acidic solution. The correct … Read more
The heaviest subatomic particle among the following is_________?
A. Electron B. Proton C. Neutron D. All have mass The neutron is the heaviest subatomic particle: Neutron is heaviest subatomic particle among the given subatomic particles with mass of 1.008 amu while proton have mass of 1 amu. The correct answer to the question: “The heaviest subatomic particle among the following is_________?” is “Neutron”.
The rays that have negative charge are ___________?
A. Anode Rays B. Cathode Rays C. Canal Rays D. Gamma Rays Cathode rays are negatively charged rays. They are made up of negatively charged particles called electrons. Here are some things to know about cathode rays: Source Cathode rays are emitted from the cathode, which is the negative electrode, within the walls of a … Read more
The Maximum mass of an atom is present in ___________?
A. Shell B. Nucleus C. Energy levels D. Orbit The nucleus is the positively charged centre of an atom and contains most of its mass. It is composed of protons, which have a positive charge, and neutrons, which have no charge. The correct answer to the question: “The Maximum mass of an atom is present … Read more
The subatomic particle that has negative charge is___________?
A. Electron B. Proton C. Neutron D. None of These The negatively charged subatomic particle is known as an electron. The correct answer to the question: “The subatomic particle that has negative charge is___________?” is “Electron”.
Nucleus of an atom was discovered by___________?
A. Goldstein B. James Chadwick C. J J Thomson D. Rutherford Ernest Rutherford discovered the nucleus of an atom in 1911: Ernest Rutherford Known for: Discovering the nucleus of the atom, discovering alpha and beta rays, and proposing the laws of radioactive decay Experiment Shot alpha particles at a sheet of gold foil, and noticed … Read more
The general formula for alkenes is:______________?
A. CnH2n+1 B. CnH2n+2 C. CnH2n D. CnH2n-2 The correct answer to the question: “The general formula for alkenes is:______________?” is “CnH2n”.
Polyvinyl acetate is the Polymer of __________?
A. Vinyl Chloride B. Vinyl acetate C. Formaldehyde D. Methyl methacrylate The correct answer to the question: “Polyvinyl acetate is the Polymer of __________?” is “Vinyl acetate”.