Q. Stains of rust on clothes can be removed by:
1) H2O2
2) Oxalic acid
3) Petrol
4) Alcohol
Q. Transboundary pollution (or) Acid rain is caused by:
1) Nitrogen oxide and sulphur dioxide
2) Carbon monoxide
3) Carbon dioxide
4) Hydrocarbon
Q. Which metal is the heaviest in periodic table among the following?
1) Os
2) Pt
3) Pb
4) W
Q. The antiseptic compound present in Dettol is
1) Iodine
2) Enloroxylenol
3) Biothional
4) Cresol
Q. The law which states that the amount of gas dissolved in a liquid is proportional to its partial pressure is
1) Dalton's law
2) Gay-Lussac's law
3) Henry's law
4) Raoult's law
Q. The series in which the electrode potentials of metals are arranged in an order is known is
1) Electrode potential series
2) Electrical conductivity series
3) Electrochemical series
4) Chemical affinity sries
Q. Some sources of energy are continuously produced in nature and are essentially inexhaustible. Which of the following is such a source?
1) Coal and lignite
2) Geothermal power
3) Natural gas and crude oil
4) Uranium
Q. Kinetic energy of translation of an ideal gas is dependent upon
1) Pressure of the gas
2) Volume of the gas
3) Temperature of gas
4) Nature of the gas
Q. Equilibrium established in a system in which two or more phases occur is called
1) Homogeneous equilibrium
2) Heterogeneous equilibrium
3) Stable equilibrium
4) None of the above
Q. The temperature at which a real gas obeys the ideal gas laws over a wide range of pressure is called
1) Inversion temperature
2) Reduced temperature
3) Boyle temperature
4) Critical temperature
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