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Atom is the smallest particle which is_________?
A. Indivisible B. Divisible C. Both D. None of these Submitted by :- Jamil Ahmed
Which statement is incorrect ?
A. All the metals are good conductor of electricity B. All the metals are good conductor of heat C. All…
Main use of salt in diet is to : ___________?
A. ease the process of cooking B. increase the taste C. produce small amount of hydrochloric acid required for digestion…
The source of the Sun’s energy is the process of ____________?
A. Photoelectric emission B. Nuclear fusion C. Nuclear fission D. Thermionic emission Submitted by :- Jamil Ahmed
The snow on the mountains does NOT melt all at once when it is heated by the sun because:
A. it becomes very hard B. it reflects most of the heat from the sun C. it has a low…
Which of the following is the primary source of oxygen that keeps humans and animals alive?
A. Carbon dioxide B. Carbonates absorbed from soil C. Oxides of minerals D. Photosynthesis carried out by plants, algae, and…
What is the name of that system, which uses radioactivity to decide the period of materials of-pre-historic period ?
A. Radium dating B. Carbon dating C. Uranium dating D. Deuterium dating Submitted by :- Jamil Ahmed
Soap is prepared by boiling caustic soda with ___________?
A. Alcohol B. Kerosene oil C. Glycerine D. Fats Submitted by :- Jamil Ahmed
Milk tastes sour when kept in the open for some time due to the formation of __________?
A. lactic acid B. citric acid C. acetic acid D. carbonic acid Submitted by :- Jamil Ahmed
Water Gas is a mixture of two gases Hydrogen & Carbon monoxide, while separating Hydrogen gas by liquification process which one is liquefied first__?
A. Hydrogen Gas B. Carbon Monoxide Gas C. Both at same time D. None of them Submitted by :- Jamil…