The page about Chemistry MCQs here you will find the all basic and advanced level mcqs. which will help you in test preparation. I have focused on to share basic and advanced level mcqs. the given below mcqs get from different reliable sources. so read carefully and share with other's to help in test preparation.
251 ) The atom bomb is based on the principle of
(a) Nuclear fusion
(b) Nuclear fission
(c) Radioactivity
(d) Nuclear fission and fusion both
The Answer Is: (b) Nuclear fission
252 ) Oxidation involves
(a) Gain in electrons
(b) Gain of hydrogen
(c) Loss of electrons
(d) Combustion
The Answer Is: (c) Loss of electrons
253 ) The substances are radioactive, which have
(a) Electrons in their nuclei
(b) Nuclei with a lesser number of neutrons
(c) Unstable nuclei
(d) Electrons removed from the outermost shell
The Answer Is: (c) Unstable nuclei
254 ) When nuclear energy is intended to be harnessed for the generation of electricity, potentially destructive neutrons released in a nuclear reactor are absorbed by
(a) Heavy water
(b) Long rods of cadmium
(c) Cubical blocks of steel
(d) A pile of blocks made of graphite
The Answer Is: (b) Long rods of cadmium
255 ) Nuclear power reactors are operated at low temperatures and consequently with lower efficiency because
(a) Nuclear heat is carried by ordinary steam
(b) Uranium is difficult to heat
(c) The walls of nuclear reactors cannot withstand high temperature
(d) High pressure inside the reactor reduces the temperature
The Answer Is: (c) The walls of nuclear reactors cannot withstand high temperature
256 ) The energy emitted from the sun is supposed to be due to
(a) Nuclear fission
(b) Nuclear fusion
(c) Combustion of hydrogen
(d) Combustion of helium
(e) Radioactive disintegration
The Answer Is: (b) Nuclear fusion
257 ) In a hydrogen bomb, hydrogen is converted into
(a) Barium
(b) Uranium
(c) Uranium-238
(d) Helium
The Answer Is: (d) Helium
258 ) When two ice cubes are pressed over each other, they unite to form one cube. Which of the following forces is responsible for holding them together?
(a) Van der Waals forces
(b) Covalent attraction
(c) Hydrogen bond formation
(d) Dipole-dipole attraction
The Answer Is: (c) Hydrogen bond formation
259) The high boiling point of water is due to
(a) Weak dissociation of water molecule
(b) Hydrogen bonding among water molecules
(c) Its high specific heat
(d) Its high dielectric constant
The Answer Is: (b) Hydrogen bonding among water molecules
260 ) Ice has an open structure compared to water, due to which it floats on water and occupies a greater volume of space. The open structure of ice is due to
(a) Solid state of ice
(b) Its low density
(c) Crystalline nature
(d) Hydrogen bonding
The Answer Is: (d) Hydrogen bonding
0 comments:
Post a Comment
Hello!
Although Every Comment is Appreciated. Feedback, Suggestions, Any Question Comment Below Be Carefully & Feel Free. Admin Will Give You Answer of Your Question in Just Within 12 Hours.