Chemistry: Most Important One Liner Question and Answer part- 8
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Chemistry Most Important One Liner Question and Answer part- 8
Which among the following were not discovered by the time, Mendeleev published his periodic table -Noble Gases
Ekaboron was an element predicted by Mendeleev and he leaved a space for it in his Periodic Table. Later Ekaboron was identified with –Scandium
Which among the following allotropes of Oxygen is found in 6 phases under various pressures and temperatures –Octaoxygen
Buckyballs are basically the allotropes of –Calcium
What is the number of synthetic elements in periodic Table -24
Haber Process is used to produce which among the following –Ammonia
If a Hydrogen atom is removed from a hydrocarbon of Benzene group, the remaining residue is called –Aryl
Which among the following kinds of Chemical reactions cause the rocks turn red or yellowish –Oxidation
Which among the following is the unit of the scale used for measurement of the spicy heat of a chili pepper – Scoville
Every kilogram of seawater has approximately how much dissolved salts -35 gms
Gypsum is added to Cement so that - setting of cement can be slowed
The color “Carmine” is a shade of which among the following colors? –Red
Which among the following makes Chile saltpetre different from saltpetre? –Sodium
Which among the following is “Fool’s Gold” -Iron Sulphide
A baby diaper, if tested with various solutions, will absorb maximum amount of which among the following -Distell Water
Now a days, a little pack of Silica Gel (granular beads of Silica made from Sodium Silicate) comes with many products to control humidity and avoid sp -Silica gel is a Hygroscopic substance with large surface area so its molecules absorb the moisture.
Which among the following is the correct almost equivalent to 1 MMBTU Natural Gas -054615 gigajoule
The first metal to be used by man was -copper
For respiration in deep sea, divers use mixture of - Oxygen, Helium & nitrogen
The minimum temperature at which a combustible substance catches fire is called - ignition temperature
Which among the following minerals is also known as Horn Silver -Silver Chloride
The colors in the fine cut diamond are because of which among the following -Presence of Impurities
Benzoepin, Parrysulfan, Phaser, Thiodan, Thionex etc. are the names of which among the following pesticides –Endosulfan
An aqueous solution of Sodium Acetate will be of which among the following nature –Basic
Aluminium is getting popular worldwide today as a “Green Metal”. Which among the following properties of Aluminium makes it a Green Metal -Aluminium has fairly high rate of recycling and it can be re-used repeatedly without its quality deteriorating
Acetylene cannot be safely pressurized as a pure compound. Which among the following is used for safe storage and transportation of Acetylene? –Acetone
Above 70 °C, sodium bicarbonate has a property of gradually decomposing, which makes it usable in Bakery products. Which among the following end produ -Carbon Dioxide
Which among the following substances is being used most commonly for producing synthetic jet Fuel? –Coal
Lysergic acid diethylamide (LSD) is a drug used as - Hallucinogen
Amalgam’ is a term used for an alloy of a metal with - Mercury
Gammaxene, D.D.T. and Bleaching powder are important compounds of -Chlorine
P.G. is a hydrocarbon consisting of a mixture of -Propane and Butane
What is Kerogen oil -It’s an unconventional oil produced from the pyrolysis, hydrogenation, or thermal dissolution of Oil Shales -Which among the following was first human-made plastic – Celluloid
Which among the following is the correct impact of the London Forces in the Cycloalkanes? -The melting and boiling points get increased
Gargling with a solution of table salt is known to provide relief for a sore throat because -It dehydrates water from inflammatory tissues by Osmosis
The Potassium graphite and Calcium Graphite can be mostly used as which among the following –Superconductors
The second lightest of all gases is – helium
What is the process of conversion from solid to gas is known as – Sublimation
Which among the following acid is also known as ‘Muriatic Acid” - Hydrochloric Acid
Lactose is present in – milk
The heaviest naturally occurring element is - Uranium
Which of the following metal is the heaviest – Osmium
‘Rn’ is chemical symbol of which element – Radon
Copper is associated with____ mitochondrial enzymes. - cytochrome oxidase
Which of the following vitamins is generally excreted by human in urine - Vitamin C
Which of the following substance's smell is similar to Ethanoic acid? – Vinegar
‘Oil of vitriol’ is the common name of which of the following - Sulphuric Acid
Tartaric Acid is not found in – Spinach
Which one among the following is an example of chemical change - The frying of an egg
Which of the following is the general formula for saturated hydrocarbons - CnH2n+2
Precipitation in the form of a mixture of rain and snow is called - Sleet
Zeolite - is Hydrated Sodium Aluminium Silicate
The chemical name of Quartz is? - Sodium Silicate
SMOG is a combination of - Smoke and Fog
The highest percentage of carbon is found in which form of coal? - Anthracite
Acids react with bases to give – Salt
Sulphuric acid is – Dibasic
Plaster of Paris is made from – Gypsum
Cyanide process is used for extraction of – Au
Malachite is a mineral of – Cu
Methane is present in the atmosphere of – Mars
The main component of honey is – Fructose
Which one of the following acids is used in the manufacturing of baking powder – Tartaric Acid
Which acid is used in photography – Oxalic Acid
Which one of the following is viscous? – Honey
Fertiliser having high nitrogen content is - Ammonium nitrate
The gas used for artificial fruit ripening of green fruit is – Ethylene
Which of the following has the longest wavelength - Radio waves
The absolute value of charge on electron was determined by – A. Millikan
The charge on positron is equal to the charge on – proton
Tritium is an isotope of – Hydrogen
The number of unpaired electrons in carbon atom is – 2
Which orbital is dumb-bell shaped - p-orbital
Meson was discovered by – Yukawa
The maximum number of electrons on a principal shell is - 2n²
The atomic orbital is - the region in which there is maximum probability of finding electron
The vertical lines in modern periodic table are called – Group
The horizontal line in modern periodic table is called – Period
Alkali metals are in a group - I A
The elements in group zero are called - Inert gases
Aluminium is diagonally related to – Be
The most common lanthanide is – Cerium
How many elements are there in the 5th period of modern periodic table – 18
Which is the hardest element – Diamond
What are Rubies and Sapphire chemical known as – Aluminium oxide
Who is regarded as father of modern chemistry – Lavoisier
The concept of expanding universe is based on – Doppler Effect
CT scan is done by using – X rays
The oil in the wick of an oil lamp rises up due to – Capillary action
Laughing gas used as anaesthesia by doctors – Nitrous Oxide
Easily soluble in water – Ammonia
The gas usually filled in the electric bulb is – Nitrogen
Which metal is accessed in the native state – Gold
When Eno salt is poured into water, bubble forms, which is due to – CO2 gas
The chemical used as a ‘fixer’ in photography – Sodium thiosulphate
Brass gets fade colour in air due to the presence of – Hydrogen Sulphide
What is used to produce artificial rain – silver iodide
How much carbon does steel contain – 1%-1.5%
Which lubricant is used for heavy machines – Graphite
