Q.1:- The chemical name of ‘Hypo’ commonly used in photography is ?
- Sodium Thiosulphate
- Silver Nitrate
- Sodium Nitrate
- Silver Iodide
Q.2:- Which of the following is a carbonate ore ?
- Cassiterite
- Pyrolysite
- Diaspore
- Malachite
Q.3:- Which one of the following elements shows highest oxidation state ?
- Pt
- Rh
- Os
- Fe
Q.4:- Hydrogen peroxide does not act as ?
- An Acid
- Base
- Oxidising Agent
- Reducing Agent
Q.5:- Which of the following metals exhibits similarity in properties of Aluminium ?
- Ba
- Be
- Ca
- Sr
Q.6:- Which of the following is ferrous alloy ?
- Invar
- Solder
- Magnalium
- Type Steel
Q.7:- Which of the following is not an ore of Iron ?
- Magnetite
- Limonite
- Caniterite
- None of these
Q.8:- In manufacture of glass the addition of MnO2 gives ?
- Yellow Colour
- Red Colour
- Violet Colour
- Pink Colour
Q.9:- Which one of the following is the strongest base ?
- AsH3
- SbH3
- PH3
- NH3
Q.10:- The elements of group VA are generally known as ?
- Normal elements
- Transition elements
- Halogens
- Pnicogens
Q.11:- Quartz is a crystalline variety of ?
- Silicon
- Silicon Carbide
- Sodium Silicate
- Silica
Q.12:- Bleaching powder is obtained by the interaction of Cl2 and ?
- Dilute solution of Ca(OH)2
- Dry Cao
- Concentrated solution of Ca(OH)2
- Dry slaked lime
Q.13:- Which of the following is not chalcogen ?
- O
- Na
- S
- Se
Q.14:- Bleaching action of SO2 is due to ?
- Oxidation
- Reduction
- Hydrolysis
- Electrolysis
Q.15:- Which one of the following formed from sea water ?
- Halogen
- Chlorine
- Oxygen
- Sulphur
Q.16:- Bromine gas turns starch iodine paper ?
- Blue
- Red
- Colourless
- Yellow
Q.17:- The noble gas used for treatment of cancer is ?
- Helium
- Radon
- Krypton
- Argon
Q.18:- Noble gases are ?
- Monoatomic
- Diatomic
- Triatomic
- All of the above
Q.19:- Which one of the following is not an essential micronutrient for plants ?
- Boron
- Zinc
- Sodium
- Copper
Q.20:- Which of the following is not a noble gas ?
- Hydrogen
- Helium
- Neon
- Argon
Q.21:- A mixture of Naphthalene and Benzoic acid can be separated by ?
- Chromatography
- Sublimation
- Fractional Crystallisation
- Distillation
Q.22:- A mixture of water and NaCl can be separated by ?
- Sublimation
- Evaporation
- Decantation
- Filtration
Q.23:-The common name of propanone is ?
- Acetone
- Dimethyl Ketone
- Ethyl Methyl Ketone
- Diethyl Ketone
Q.24:- Knocking sound is produced in the engine when the fuel contains ?
- Water
- Lubricating oil
- Straight chained hydrocarbon
- Iso-Carbon atoms
Q.25:- The presence of unsaturation in an organic compound can be tested with ?
- Schiff’s reagent
- Tollen’s reagent
- Fehling’s solution
- Baeyer’s reagent