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A mixture of water and alcohol can be separated by 1 Filtration 2 Evaporation 3 Distillation 4 Decantation
SSC,
4 28172A substance which changes readily into vapor without heating is called 1 Efflorescent 2 Synthetic 3 Volatile 4 Effervescent
HLL,
1 10054Catalytic properties of a substance may be best defined as a phenomenon of 1 Absorption 2 Chemisorption 3 Adsorption 4 None of these
1 7620In which of the following processes light energy is converted into chemical energy? 1 Respiration 2 Fermentation 3 Photosynthesis 4 Photoresiration
2 4838Cooking oil can be converted into vegetables ghee by the process of 1 Oxidation 2 Hydrogenation 3 Distillation 4 Crystallization
4 20930Photosynthesis is 1 An exothermic process 2 An endothermic process 3 A neutral process 4 A thermostatic process
2 6755Which of the following substances exhibit the property of sublimation? 1 Ice 2 Wax 3 Camphor 4 Ethyl alcohol
1 8482The hydrogenation of the vegetables oils takes place in the presence of finely divided 1 Aluminium 2 Charcoal 3 Silica 4 Nickel
1 5185Combustion is the process in which 1 Heat is produced 2 Light is produced 3 Heat and light are produced 4 None of these
1 3455The chemical used as a ‘fixer’ in photography is 1 Borax 2 Sodium thiosulphate 3 Sodium sulphate 4 Ammonium persulphate
SSC,
1 12235A mixture of iron filings and sand can be separated by 1 Heating 2 Sublimation 3 Hand picking 4 Magnetic separation
1 4379In which of the following processes, is vanadium pent oxide used as a catalyst? 1 Contact process 2 Haber’s process 3 Solvay process 4 None of these
2 4676Conversion of a substance directly from solid to vapour state is known as 1 Ionization 2 Evaporation 3 Vapourisation 4 Sublimation
2 18147The rate of chemical reaction does not depend upon 1 Concentration 2 Catalyst 3 Temperature 4 Pressure
1 12690Which of the following is a chemical change? 1 Magnetization of iron 2 Melting of ice 3 Burning of sulphur 4 Melting of wax
1 6024Post New General Science Questions
What are quasars?
What is range of sagarika?
How long can arihant stay underwater?
Write about recreational function of Science
Which of the following metals is a better conductor of electricity? A. Silver B. Copper
Which scientists gave detailed information about nebula?
Which is the first atomic submarine of india?
In which year was the meteorology department founded?
Who is the oldest cosmonaut?
A team of u.n scientists visited thumba?
When was the second and third experimental explosion conducted?
What is one light minute?
what is office automation?
Which is the research reactors of bhabha atomic research centre?
In which year, physical laboratory in ahmedabad was founded?
