1421 Cyclone collector is used for minimizing:____________-? Chemistry Medium Full question → A Water pollution B Sound pollution C Soil pollution D Air pollution
1422 The medium which interact with long lived pollutant is:_____________? Chemistry Medium Full question → A Source B Receptor C Sink D All of them
1423 Which one of the following gives the measure of Organic pollution in water? Chemistry Medium Full question → A COD B DO C PH D Salinity
1424 The distribution coefficient is related to:______________? Chemistry Medium Full question → A Separating factors B decreasing factors C Colouring factors D retardation factors
1425 The second nuclear weapons used in warfare over Nagasaki, Japan, contain energy equal about of TNT? Chemistry Medium Full question → A 1.5 kilotons B 20 kilotons C 25 kilotons D 30 kilotons
1426 The usual property of ionic crystal are:_____________? Chemistry Medium Full question → A Stable B gaseous form C Unstable D Compound forming
1427 The main contributor to toxicity of detergent: Chemistry Medium Full question → A Na-Silicate solution B Na-sulphate solution C Na-Chloride solution D K-Chloride solution
1428 The fundamental way to transfer energy are:_____________? Chemistry Medium Full question → A pressure and temperature B pressure and volume C heat and volume D heat and work
1429 Formaldehyde on condensation in the presence of calcium hydroxide: ______________? Chemistry Medium Full question → A Formose B Fructose C Maltose D Xylose
1430 Lactic acid on oxidation by alkaline potassium permanganate gives:____________? Chemistry Medium Full question → A Propionic acid B Cinnamic acid C Pyruvic acid D Tartaric acid
1431 Shiff’s reagent gives pink color with ____________? Chemistry Medium Full question → A Acetone B Acetaldehyde C Acetic acid D Methyl acetate
1433 Neoprene is _______________? Chemistry Medium Full question → A Natural rubber B Vulcanized rubber C synthetic rubber D All of the above
1434 Example of cross linked polymer is ____________? Chemistry Medium Full question → A Nylon B Polyester C bakelite D PVC
1435 Example of linear polymer is ______________? Chemistry Medium Full question → A High density polythene B Low density polythene C PVC D both A and C
1436 Vulcanized rubber is an example of ______________? Chemistry Medium Full question → A Natural polymers B semisynthetic polymers C Synthetic polymers D None of These
1437 The Maximum mass of an atom is present in ___________? Chemistry Medium Full question → A Shell B Nucleus C Energy levels D Orbit
1438 The rays that have negative charge are ___________? Chemistry Medium Full question → A Anode Rays B Cathode Rays C Canal Rays D Gamma Rays
1439 The heaviest subatomic particle among the following is_________? Chemistry Medium Full question → A Electron B Proton C Neutron D All have mass
1440 The salt that gives the aqueous solution with pH less than 7, is called as____________? Chemistry Medium Full question → A Basic salt B Acidic salt C Neutral salt D Amphoteric salt