Chemistry Most Important One Liner Question and Answer part-3
Home / Chemistry Most Important One Liner Question and Answer part-3
Chemistry Most Important One Liner Question and Answer part-3
Water that rubs with soap quickly and gives more foam - soft water
Urea - Nitrogen Fertilizer
White phosphorus is kept in water.
A small pouch of silica gel is kept in medicine vials containing muffins or capsules - to absorb moisture.
By which process metals are heated – conduction
What is the use of blast furnace for – reduction
The electroplate is always made ......... and the metal to be mounted on it is always made ........ - cathode, anode
From whom can mercury be easily obtained- Cinnabar
Fuse wire is made of - lead and tin
Which metal star can easily be drawn- Copper
Resides in Amalgam – Hg
Bessemer process is made of – Steel
Thermic welding is a type of fusion welding
What is a strategic metal- Titanium
More than 80 percent welding capacity - Arc welding
The first synthetic fiber created by Manav was – Nylon
Silicon carbide is used to cut valuable hard objects
Who measures are used to measure – hardness
Felspar Ores – Aluminum
A metal often assumes superconductivity - at cryogenic temperatures.
Which are the fuels of the future – Hydrogen
Complete conversion of glucose to carbon dioxide in the presence of oxygen and release of energy in water is called air respiration.
Alloys made of stitch - glass and tin
Major constituents of Portland cement include - Lime, Silica and Alumina
How much carbon is in steel - 25-1.5 percent
To increase the protection resistance of steel it is added to- Chromium
CaOCl2 is the chemical formula for a compound commonly known as - bleaching powder
What is the nature of metal- neutral
Hematite ore of- Fe
Which is the purest type of coal – anthracite
Stainless steel - chromium, iron, nickel and carbon
What is Gun Powder - It is a mixture of potassium nitrate and carbon and sulfur.
Who is extracted from commercial Vaseline – petroleum
Pyrex glass is mainly- heat-resistant glass
'Dichloro-difluoro methane' is found in the market by which name- Freon-12
Whose common name is washing soda - sodium carbonate
Nowadays the density of CO2 in the atmosphere is approximately - 360 in ppm
Which substance is used in storage battery- lead
Steel is increased to provide hardness - the amount of carbon
The common element of all acids is- hydrogen.
Sun has nuclear fuel – hydrogen
Which use is done to remove permanent salinity of water due to sulfate of metals – zeolites
The bases of four identical kettles are made of different metals of the same thickness, which contain the same amount of water, if these kettles are kept on the same fire (heat) in the same manner, then water is the first metal of which Boiled in a made kettle - the copper
Which metal is the best conductor of electricity – Silver
When steel is dried red hot and cooled slowly, this process is called – annealing
Which element is used in domestic refrigerator- Freon
The most suitable refrigerant for a commercial ice plant is- NH3.
Which is used as an anti-freeze in automobile engines - ethylene glycol
For what purpose is lube oil used in diesel engines - to reduce friction, to cool the engine.
Sodium thiosulfate is used in photography - to remove unsolicited silver.
Antacids - that neutralize stomach acid.
The components of quartz are silicon and - oxygen.
The molecules of which substance have the same type of atoms – oxygen
Friction can be increased by- rough surfaces.
Crystalline from the chemical point of view - SiO2
Which configuration represents an excellent gas-1s2,2s2,2p6
If the pressure on a fluid increase, its- boiling point increases.
The inner surface of food containers is made of tin and not in zinc, because- zinc is more functional than tin.
Application of alum on the wound stops bleeding, because- the alum makes the blood clot
To dilute sulfuric acid, it is recommended to dilute the acid in water, because- the process of diluting the acid is highly exothermic.
Mercury - Liquid Metal
Who is treated with the help of rheumatic heart disease- Aspirin
An example of a covalent molecule is- carbon tetrachloride.
Iron nails are immersed in blue copper sulphate solution. After some time, the iron nails do not dissolve and the reddish- brown surface of the copper settles on the nails.
Which chemical is used to keep food grains / food items safe - sodium benzoate
Which substance has the most specific heat – water
Which pair makes the terminals of ordinary torch cell - zinc carbon
Which one is used as an antimicrobial for automatic engines - ethylene glycan
What is the main ingredient of pearl - only calcium carbonate
Under the cement grinding process, the purpose of mixing gypsum in the clincher powder is- to reduce the rate of setting.
The main feature of a neutron bomb is that when dropped on the city, it will cause damage - not to living creatures, but to buildings.
What is wood spirit - methyl alcohol
Which process is followed in the production of biodiesel - Trans esterification
Which is a property of ammonia - Red litmus in its aqueous solution turns blue.
Bio-degraded waste can be converted into useful material with the help of – bacteria
Alloys which contain mercury – amalgam
Which of the qualities of non-metals is commonly found in religion – brittleness
Which are the best fuels in terms of energy saved by the fuel per gram- Hydrogen
Which of the evanescent has been found effective in preventing water pollution caused by industrial effluents - Elephant Grass
Smog is formed by the combination of- Smoke and Fog.
Steam ember gas is a mixture of- carbon monoxide and hydrogen
What causes iron to rust- chemical reaction with oxygen, chemical reaction with CO2
Who has to remove the work of sewage treatment churn tank - oil and fatty substances
Chemical substances present in the teeth and bones are- calcium phosphate.
Hemoglobin has maximum affinity - for carbon mono oxide
There is always a component of an amalgam – mercury
Stainless steel often contains about 14 percent or more – chromium
Which chemical used in arts and crafts can cause anemia and leukemia- Benzene
What causes heavy metal pollution of water – paint
Yellow spots on citrus leaves are due to the deficiency of- Magnesium
Which main raw material is used for the manufacture of rayon – Cellulose
After dissolving 8 grams of NaOH in water and preparing 250 ml solution, what will be the molarity of the solution - 8
What is the chemical reaction in which heat is produced- Exothermic reaction
The oxidation numbers of chromium in K2Cr2O7 are - +6
Which acid is used in automobile battery- H2SO4
Any substance which is capable of affecting the rate of chemical reaction without changing itself is called- catalyst
Acid is used to write on glass- Hydrochloric acid
Acid transforms- blue litmus to red
Which of the allotropes of carbon is used in cutting and drilling – diamond
Who emits a radioactive substance- alpha particle, beta particle, gamma particle
