General Science MCQs
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CHEMISTRY
Q. In the modern periodic table, which of the following groups of elements have a complete outer shell ?
1) 16th Group
2) 17th Group
3) 18th Group
4) 15th Group
3) 18th Group
Q. Which metals react with vapor to form metal oxide and hydrogen?
1) Silver
2) Aluminum
3) Copper
4) Glass
2) Aluminum
Q. The substance which on heating directly changes from solid to gas is called?
1) Centrifugation
2) Sublimation
3) Crystallization
4) distillation
2) Sublimation
Q. Which element is found in liquid state at room temperature ?
1) Aluminium
2) Lithium
3) Sodium
4) Mercury
4) Mercury
Q. The method of separating a mixture of sugar and salt is called?
1) Sublimation
2) Fermentation
3) Crystallization
4) distillation
3) Crystallization
Q. Which scientist discovered nitrogen ?
1) Rutherford
2) Jon Dalton
3) J.J. Thomson
4) Chadwick
1) Rutherford
Q. On whose principle is the modern periodic table based ?
1) Dmitri Mendeleev
2) Henry moseley
3) John Dalton
4) J.A.R. Newlands
2) Henry moseley
Q. 0 degree Celsius is equal to how many Kelvin ?
1) 0 Kelvin
2) 273 Kelvin
3) 313 Kelvin
4) -273 Kelvin
2) 273 Kelvin
Q. The process of converting a liquid into a solid at a temperature lower than its boiling point is Called ?
1) Distillation
2) Freezing
3) Liquefaction
4) Evaporation
4) Evaporation
Q. Which one of the following does not form oxyacid ?
1) Nitrogen
2) Chlorine
3) Fluorine
4) Sulphur
3) Fluorine
Q. The nuclear particle having no mass and no charge, but only spin is ?
1) electron
2) proton
3) meson
4) neutron
4) neutron