WorksheetsCHEMISTRY G.K-1
Total questions: 25
Worksheet time: 50mins
* Which gas used in fire extinguisher ……….
Sulphur dioxide
Carbon monoxide
Nitrogen oxide
Carbon dioxide
* Nail polish remover contains…………..
Benzene
Acetic Acid
Acetone
Pet Ether
* Which gas used in the manufacture of Vanaspati Ghee from Vegetable Oil ……
Carbon Dioxide
Nitrogen
Hydrogen
Oxygen
* Which is the mixture of potassium nitrate powdered charcoal and Sulphur called….
Paint
Gun powder
Brass
Aluminium
* Due to rusting weight of Iron ……
Decreases
Uncertain
Remains the same
Increases (Fe2O)
* Which elements always keep in Kerosene as a security purpose…
Red Phosphorus
Sodium
Potassium
Aluminium
* Contact Lenses made from……….
Teflon
Polystyrene
PolyVinyl Chloride
Lucite
* In which is heaviest in weight …………
electron
Neutron
proton
Positron
* The high reactivity of fluorine is due to…..
Availibility of d-orbital
Small size of fluorine atom
Its high electronegativity
Strong F-F bond
* Aspirin is ………..
Acetyl salicylic acid
Sodium salicylate
Methyl salicylate
Ethyl salicylate
* Homo nuclear molecules contain…………
Covalent Bond
Polar bond
Ionic bond
Co-ordinate bond
* Which of the following gas used in lighter…..
Propane
Butane
Methane
Ethane
* Acid rain is due to air pollution by…………..
Methane
carbon monoxide
carbon dioxide
Nitrous oxide &Sulphur dioxide
* What among following is used to produce artificial rain……..
Silver nitrate
Silver iodide
Copper oxide
Carbon monoxide
* Oil of vitriol is……..
Phosphoric acid
Hydrochloric acid
nitric acid
Sulphuric acid
* Which Gas used in refrigerators……..
Chloroform vapours
Methane
Chlorofluorocarbon
Acetylene
* Which of the following gas is most toxic ……
Carbon monoxide
carbon dioxide
Sulphur Dioxide
Acetic acid
* The gas used for Artificial Ripening of green fruits………
Ethane
Carbon Dioxide
Ethylene
Acetylene
* Which is the Primary Component of natural gas…………
Ethane
Methane
propane
Butane
* The substance that contains maximum amount of nitrogen is………
Ammonium chloride
Ammonium Sulphate
Ammonium nitrate
Urea
* The main chemical Constituent of Clay is….
Silica oxide
Aluminium silicate
Zeolites
aluminium borosilicate
* The Single Acid which dissolve gold is………
Selenic Acid
Nitric acid
Aqua-regia
Hydrochloric acid
* Elements the shows properties of Metals and non-metals are called….
Metalloids
Allotropes
Alloys
colloids
* …….. is extracted from bauxite
Iron
Tin
Copper
Aluminium
* The major component used in preparation of different glasses is………
Sodium Borate
Sodium Silicate
Silica
Calcium Silicate
