Chemistry Most Important One Liner Question and Answer part- 10

Chemistry Most Important One Liner Question and Answer part- 10

 

• What is the chemical name of Chile saltpetre – Sodium nitrate
• What is the chemical formula of Heavy water – D2O
• Acetic Acid is another name for which of the following – Vinegar
• What is the chemical name of gammaxene – Benzene hexachloride
• What is the chemical formula of Washing Soda – Na2CO3
• What is the chemical formula of Common Salt – NaCl
• What is Carborundum – Silicon carbide (SiC)
• What is the chemical name of hypo – Sodium thiosulphate
• What is the chemical formula of P.O.P – (1/2)H2O
• What is the chemical name of magnetite – Iron oxide
• What is the chemical formula of Laughing gas – N2O
• Which is known as ‘Metal of Future’ – Titanium
• Efficiency of the catalyst depends on its – Molecular State
• Most of the explosions in mines occurs due to mixing of – Methane with air
• Vinegar is an aqueous solution of – Acetic acid
• Kerosene is a mixture of – Aliphatic hydrocarbons
• The important metal used with iron to produce stainless steel is – Chromium
• Which gas is responsible for the swelling of bread – Carbon dioxide
• The metal constituent of chlorophyll is – Magnesium
• Which acid is used for etching glass – Hydrofluoric acid (HF)
• Paraffin wax is – Saturated hydrocarbon
• Solder is an alloy of – Tin and Lead
• Alum is used as – A purifier for water
• Nuclear fuel in the sun is – Helium
• Dead organisms are transformed into petroleum and natural gas – Absence of air
• Organic Compounds are only soluble in – Non-polar solvents.
• Which acid is used in soft drinks – Carbonic acid (H2CO3)
• Which acid is present in Bee Sting – Methanoic Acid
• Tooth enamel is made up of – Calcium Phosphate
• The name ‘catalyst’ was given by – Berzelius
• A polymeric substance used to make parachute is – Viscose
• What is used to avoid melting of ice – Gelatine
• Carbon occurs in the nature in the purest form as – Diamond
• Oxidation is defined as - Loss of electrons
• In nuclear reactor, chain reaction is controlled by using – Cadmium rod
• The radioactive element most commonly detected in humans is – Potassium – 40
• Hydrogen bomb is based on the principle of – Nuclear fusion
• The ultrapure metal is obtained by – Zone refining
• Most abundant metal in earth’s crust is – Aluminium
• Balloons are filled with – Helium
• The element common to all acids is – Hydrogen
• What does an alpha particle contain – 2 positive charge a mass unit
• In effusion, gas escape through – small hole
• Rusting is – Redox reaction
• What is the electron present in outermost shell called – Valence electrons
• What is the chemical formula of caustic potash – KOH
• Which element has the lowest melting point – Oxygen
• What is the chemical name of quick lime – Calcium oxide
• A sudden fall of mercury in a barometer indicates – Stormy weather
• The term ‘radio activity’ was first used by – Marie Curie
• PH value of alkaline solution is - >7
• The pH scale had been given by – Sorensen
• Sulphuric acid is – Dibasic
• The PH value of milk is – 6
• Hydrochloric acid is also known as – Muriatic acid
• The purest form of water in nature is – Rain water
• Tube light is filled with – Mercury Vapour & Argon
• Other name of “FOOL’S GOLD” is – Iron Pyrite
• Non-stick coating in utensils is of – TEFLON
• Compounds responsible for temporary hardness of water – Bicarbonates of Calcium and Magnesium
• Compounds responsible for permanent hardness of water – Sulphates and Chlorides of Calcium and Magnesium
• Gases used for ripening raw fruits – Ethylene & Acetylene
• Main ore of Mercury is – Cinnabar
• Egg shell is made up of – Calcium Carbonate
• ______ is known as Artificial Silk. – Reyon
• Water soluble Vitamins – B & C
• Fat Soluble Vitamins – A, D, E & K.
• Common preservative in food processing industry is – Benzoic Acid
• First organic compound synthesized in laboratory & by whom – Urea by Friedrich Wohler
• What blackens silver’s shine – Ozone Gas
• Substance used in Cancer treatment – Cobalt – 60
• Cobalt is found in – Vitamin B12
• Iron is extracted from which ore – Hematite
• Which element that does not occur in nature but can be produced artificially – Plutonium
• How are Oxygen and ozone – Allotropes
• Which type of glass is used for making glass reinforced plastic – Quartz glass
• Which is the element that has the highest first ionization potential – Nitrogen
• Temporary hardness of water is due to the presence of which thing – Magnesium bicarbonate
• Thermal decomposition of alkanes is known as which name – Cracking
• Which is the essential element in all organic compounds – Carbon
• What does Oxidation involve – Loss of electrons
• What is the number of unpaired electrons in carbon atom – 2
• Heating pyrites in air to remove sulphur is known as which name – Roasting
• Purification of petroleum is carried out by which method – Fractional distillation
• Which is purest form of iron – Wrought iron
• Which elements is obtained from sea weeds – Iodine
• Which substance does not have a melting point – Glass
• Which oil is used in the floatation method for the purification of ores – Pine oil
• A mixture of camphor and benzoic acid can be easily separated by which method – Chemical method
• Which is the second most abundant metal in the earth’s crust – Iron
• What is the conversion of Fe++ to Fe+++ – Oxidation
• What is the name of the scientist who stated that matter can be converted into energy – Einstein
• Which colloids are solvent loving colloids – Lyophilic
• Which was the scientist who was responsible for the rejection of vital force theory – Lavoisier
• Which alloy used in making heating elements for electric heating devices? – Nichrome
• Which is the best conductor of electricity – Silver
• Which polymer is used for making bulletproof material – Polyethylene
• In which Tyndall effect is not observed – Sugar Solution
• Tube light is filled with    –    Mercury Vapor & Argon
• Other name of “FOOL’S GOLD” is    – Iron Pyrite
• Non-stick coating in utensils is of – TEFLON
• Compounds responsible for temporary hardness of water – Bicarbonates of Calcium and Magnesium