101 Chemistry General Questions For PSC
Dec 2020|🟢Current|4 min read|93 entries
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In this post, we are sharing a collection of 101 Chemistry General Knowledge questions and answers.
101 Chemistry General Questions For PSC(93)
| Item | Detail |
|---|---|
| Chemistry General Questions & AnswersDry ice is | Solid CO2 |
| Rarest Metal | Rhodium |
| Lightest Metal | Lithium |
| Heaviest Metal | Osmium |
| Hardest Metal | Tungsten |
| Most Ductile Metal | Gold |
| Wax is soluble in | Benzene |
| Dolomite is an ore of | Calcium |
| Most Precious Metal | Platinum |
| Cinnabar is the ore of | Mercury |
| Malleable Metals | Gold & Silver |
| Steel is an alloy of | Carbon & Tin |
| Brass is an alloy of | Copper & Zinc |
| Gas used in welding | Acetylene |
| Freon gas is used in | Refrigerators |
| Water has maximum density at | 4°C |
| Metal with Lowest Density | Lithium |
| Acid contained in onion | Oxalic acid |
| Acid used to wash eyes is | Boric acid |
| Fuse wire is made up of | Lead & Tin |
| Galvanized Iron is coated with | Zinc |
| Most Abundant Metal in Earth | Iron |
| Liquid at room temperature | Gallium |
| Smallest particle in a substance | Atom.A raincoat is made of– Polychloroethene |
| Element obtained from sea weeds | Iodine |
| The Inert gas used as beacon light is | Neon |
| Diamond is the crystalline form of | Carbon |
| The gas used to fill the electric bulbs | Argon |
| Acid present in vegetable oil is | Stearic acid |
| Acid used to clean ink stains | Oxalic acid.No. of electrons that could fit into an orbit– 2 |
| Chemically heavy water is | Deuterium oxide |
| Best Conductor of Heat and Electricity | Silver |
| Acid used in the storage batteries | Sulfuric Acid |
| Substance that turns blue litmus paper red | Acid |
| Metal with the Lowest Boiling Point | Helium |
| Metal with the Highest Boiling Point | Tungsten |
| Prolonged electrolysis of water gives | Heavy water |
| Uncertainty Principle is proposed by | Heisnberg |
| The no. of groups in Mendeleev periodic table | 7.No. of groups in the modern Periodic table is– 18 |
| Most Abundant Metal in Human body | Iron |
| Methane gas was discovered by | Alexandra Volta |
| The setting of plaster of Paris involves | Oxidation |
| Hydrochloric acid is also known as | Muriatic acid |
| Non-stick cooking utensils are coated with | Teflon |
| Ultra purification of metal is done by | Zone Smelting |
| The isotope used for the treatment of Cancer | Cobalt 60 |
| Isotopes of Hydrogen | Tritium, Deuterium & Protium |
| Two main constituents of Granite | Silica & |
| The first organic compound prepared in laboratory | Urea |
| The most abundant element in the universe is | Hydrogen |
| The process used to produce Ammonia is | Haber process |
| Metal used to make the covering of nuclear reactors | Lead |
| Two strands of DNA are held together by | Hydrogen bond |
| Compound used for producing aritificial rain | Silver iodide |
| Water Gas is a mixture of | Carbon monoxide & Hydrogen |
| Cyanide process is used for the extraction of | Gold & Silver |
| Froth and foams are examples of | Gas suspended in Liquid |
| Element essential for the functioning of Thyroid gland | Iodine |
| Highest Thermal Expansion at Room Temperature | Caesium |
| The odor in onion and garlic is due to the presence of | Potassium |
| Wood charcoal is used in the gas masks because | it absorbs gases |
| The absorption of ink by blotting paper involves | Capillary action |
| Heat produced on account of friction is transferred by | Conduction |
| The glass used to make wind shields of motor vehicles | Safety glass |
| The elements with the same number of neutrons are called | Isotones |
| The compound used to regulate the setting time of cement | Gypsum |
| The discomfort due to indigestion can be cured by taking | Baking Soda |
| Teflon, the tough and fire resistant polymer, containing the halogen | Fluorine |
| because | It causes cardiac |
| The Chemical that is used to treat cyanide poisoning | Sodium thiosulfate |
| The catalyst used in the manufacture of Sulphuric Acid | Vanadium Pentoxide |
| Heavy water of an atomic reactor is | an oxide of heavier isotope of Hydrogen |
| The Green color seen in firework displays is due to the chloride salt of | Barium |
| called | Avogadro number |
| Avogadro’s number is equal to | 6.02214076 × 1023 |
| Total sum of the neutrons and protons in an atom | Mass number |
| The compound used to protect wood furniture from termites | Zinc chloride |
| Metal used for killing rats is | Zinc phosphide |
| First Known Super Conductor | Mercury |
| Metal abundant in Sea Water | Vanadium |
| The Main Component of Endosulfan | Organo Chloride |
| The chemical which is used in the voting ink | Silver nitrate |
| The chemical compound for the dry cleaning of fabrics | Trichloroethylene |
| nucleus is | Protium |
| Muddy water is treated with alum in purification process, it is termed as | Coagulation |
| The same group elements are characterized by | No of electrons in the outermost shell |
| The type of battery which is used in the Mobile Phones | Lithium ion battery (3.6 volts) |
| the presence of | Ethanethiol (stench) |
| The Crimson red light produced while burning crackers is due to the presence of | Strontium (Sr).In an Electrochemical cell, the energy is converted from –Chemical energy into Electrical energy |
| the chemical basis of | Redox |
| Disease caused due to the presence of excess of copper in the human body | Wilson Disease (Genetic Disease) |
| heated or exposed to light and is present in atomic clocks is | Caesium |
| The Bhopal gas tragedy of 1984 was due to the leakage of which gas | Methyl isocyanate (MIC).đź“ťSideNotes:Lithium (density 0.53 gm/cc) |
Chemistry General Questions & AnswersDry ice is
Solid CO2
Rarest Metal
Rhodium
Lightest Metal
Lithium
Heaviest Metal
Osmium
Hardest Metal
Tungsten
Most Ductile Metal
Gold
Wax is soluble in
Benzene
Dolomite is an ore of
Calcium
Most Precious Metal
Platinum
Cinnabar is the ore of
Mercury
Malleable Metals
Gold & Silver
Steel is an alloy of
Carbon & Tin
Brass is an alloy of
Copper & Zinc
Gas used in welding
Acetylene
Freon gas is used in
Refrigerators
Water has maximum density at
4°C
Metal with Lowest Density
Lithium
Acid contained in onion
Oxalic acid
Acid used to wash eyes is
Boric acid
Fuse wire is made up of
Lead & Tin
Galvanized Iron is coated with
Zinc
Most Abundant Metal in Earth
Iron
Liquid at room temperature
Gallium
Smallest particle in a substance
Atom.A raincoat is made of– Polychloroethene
Element obtained from sea weeds
Iodine
The Inert gas used as beacon light is
Neon
Diamond is the crystalline form of
Carbon
The gas used to fill the electric bulbs
Argon
Acid present in vegetable oil is
Stearic acid
Acid used to clean ink stains
Oxalic acid.No. of electrons that could fit into an orbit– 2
Chemically heavy water is
Deuterium oxide
Best Conductor of Heat and Electricity
Silver
Acid used in the storage batteries
Sulfuric Acid
Substance that turns blue litmus paper red
Acid
Metal with the Lowest Boiling Point
Helium
Metal with the Highest Boiling Point
Tungsten
Prolonged electrolysis of water gives
Heavy water
Uncertainty Principle is proposed by
Heisnberg
The no. of groups in Mendeleev periodic table
7.No. of groups in the modern Periodic table is– 18
Most Abundant Metal in Human body
Iron
Methane gas was discovered by
Alexandra Volta
The setting of plaster of Paris involves
Oxidation
Hydrochloric acid is also known as
Muriatic acid
Non-stick cooking utensils are coated with
Teflon
Ultra purification of metal is done by
Zone Smelting
The isotope used for the treatment of Cancer
Cobalt 60
Isotopes of Hydrogen
Tritium, Deuterium & Protium
Two main constituents of Granite
Silica &
The first organic compound prepared in laboratory
Urea
The most abundant element in the universe is
Hydrogen
The process used to produce Ammonia is
Haber process
Metal used to make the covering of nuclear reactors
Lead
Two strands of DNA are held together by
Hydrogen bond
Compound used for producing aritificial rain
Silver iodide
Water Gas is a mixture of
Carbon monoxide & Hydrogen
Cyanide process is used for the extraction of
Gold & Silver
Froth and foams are examples of
Gas suspended in Liquid
Element essential for the functioning of Thyroid gland
Iodine
Highest Thermal Expansion at Room Temperature
Caesium
The odor in onion and garlic is due to the presence of
Potassium
Wood charcoal is used in the gas masks because
it absorbs gases
The absorption of ink by blotting paper involves
Capillary action
Heat produced on account of friction is transferred by
Conduction
The glass used to make wind shields of motor vehicles
Safety glass
The elements with the same number of neutrons are called
Isotones
The compound used to regulate the setting time of cement
Gypsum
The discomfort due to indigestion can be cured by taking
Baking Soda
Teflon, the tough and fire resistant polymer, containing the halogen
Fluorine
because
It causes cardiac
The Chemical that is used to treat cyanide poisoning
Sodium thiosulfate
The catalyst used in the manufacture of Sulphuric Acid
Vanadium Pentoxide
Heavy water of an atomic reactor is
an oxide of heavier isotope of Hydrogen
The Green color seen in firework displays is due to the chloride salt of
Barium
called
Avogadro number
Avogadro’s number is equal to
6.02214076 Ă— 1023
Total sum of the neutrons and protons in an atom
Mass number
The compound used to protect wood furniture from termites
Zinc chloride
Metal used for killing rats is
Zinc phosphide
First Known Super Conductor
Mercury
Metal abundant in Sea Water
Vanadium
The Main Component of Endosulfan
Organo Chloride
The chemical which is used in the voting ink
Silver nitrate
The chemical compound for the dry cleaning of fabrics
Trichloroethylene
nucleus is
Protium
Muddy water is treated with alum in purification process, it is termed as
Coagulation
The same group elements are characterized by
No of electrons in the outermost shell
The type of battery which is used in the Mobile Phones
Lithium ion battery (3.6 volts)
the presence of
Ethanethiol (stench)
The Crimson red light produced while burning crackers is due to the presence of
Strontium (Sr).In an Electrochemical cell, the energy is converted from –Chemical energy into Electrical energy
the chemical basis of
Redox
Disease caused due to the presence of excess of copper in the human body
Wilson Disease (Genetic Disease)
heated or exposed to light and is present in atomic clocks is
Caesium
The Bhopal gas tragedy of 1984 was due to the leakage of which gas
Methyl isocyanate (MIC).đź“ťSideNotes:Lithium (density 0.53 gm/cc)
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