Description : White phosphorus is generally kept under (1) Alcohol (2) Water (3) Glycerine (4) Kerosene oil
Last Answer : Water
Description : Soap is prepared by boiling caustic soda with – (1) Alcohol (2) Kerosene oil (3) Glycerine (4) Fats
Last Answer : (4) Fats Explanation: The most basic kind of soap is made from cuastic soda and animal fat. The two are heated together, and then cooled. The process is called "saponification". In technical ... hydrolysis of triglyeerides which are esters of fatty acids, to form the sodium salt, of a carboxylate.
Description : Soap is prepared by boiling caustic soda with (1) Alcohol (2) Kerosene oil (3) Glycerine (4) Fats
Last Answer : Fats
Description : White phosphorus is always kept under (1) benzene (2) kerosene (3) ether (4) water
Last Answer : (4) water Explanation: White phosphorus is a material made from a common allotrope of the chemical element phosphorus that is used in smoke, tracer, illumination and incendiary munitions. Other common names include WP ... on fire, and cause serious burns or death and that is why it is kept in water.
Last Answer : water
Description : Potassium is kept & transported under (A) Water (B) Liquid ammonia (C) Kerosene oil (D) Alcohol
Last Answer : (C) Kerosene oil
Description : Why is sodium metal kept under kerosene oil ?
Last Answer : Ans. Sodium metal is highly reactive and combines with air forming sodium oxide.
Description : Transparent soaps (e.g. Pears) are (A) Usually soft soap (made from coconut oil) in which cane sugar & alcohol are added and finally washed with methylated spirit to achieve transparency (B) ... (C) Metallic soaps with frothing agent from which glycerine has not been recovered (D) None of these
Last Answer : (A) Usually soft soap (made from coconut oil) in which cane sugar & alcohol are added and finally washed with methylated spirit to achieve transparency
Description : Which of the following is used to remove ink and rust stains on cloth? (1) Oxalic acid (2) Alcohol (3) Ether (4) Kerosene oil
Last Answer : (1) Oxalic acid Explanation: Oxalic acid is a reducing agent and its conjugate base, known as oxalate, is a chelating agent for metal cations and stain removal. Oxalic acid's main applications include cleaning or bleaching, removal of stains on clothes and the removal of rust.
Last Answer : Oxalic acid
Description : White phosphorus is always kept under
Description : 1. Funds belonging to the Government of India are kept in which fund? 2. Why does Kerosene oil rise up in the wick of lantern? 3. Where is the headquarters of Food and Agriculture Organisation? ... 19. Which feature is the product of vulcanicity? 20. From where was the term Congress' derived?
Last Answer : Answer : 1 1. Consolidated Fund of India 2. Because of surface tension 3. Rome 4. Low moisture 5. Greeks 6. Income 7. Calcium and iron 8. Habeas Corpus 9. Equator 10. Spinning wheel 11. Na2 CO3 12. ... a type of garment 16. Brain 17. 24 18. Less than 90° 19. Caldera 20. The History of North America
Description : Name the following: (a) A metal, which is preserved in kerosene. (b) A lustrous coloured non-metal. (c) A metal, which can melt while kept on palm. (d) A metal, which is a poor conductor of heat. -Chemistry
Last Answer : a) Sodium is preserved in kerosene. (b) Iodine is lustrous coloured non-metal. (c) Gallium. ‘ (d) Lead.
Description : Which of the following is very reactive and kept in kerosene? (1) Sodium (2) Potassium (3) Iodine (4) Bromine
Last Answer : (1) Sodium Explanation: Sodium is a very reactive metal. It reacts vigorously with oxygen and water. A lot of heat is generated in this process. Therefore, it is stored in kerosene to avoid contacts between either atmospheric oxygen or water.
Last Answer : Sodium
Description : Phosphorus is kept in water because – (1) its ignition temperature is very high (2) its ignition temperature is very low (3) its critical temperature is high (4) its critical temperature is low
Last Answer : (2) its ignition temperature is very low Explanation: The allotropic form of Phosphorus (white phosphorus) is less stable and therefore highly reactive because of angular strain in P4 molecule where the angles are only 600.
Description : Phosphorus is kept in water because (1) its ignition temperature is very high (2) its ignition temperature is very low (3) its critical temperature is high (4) its critical temperature is low
Last Answer : its ignition temperature is very low
Description : Which are the two metals kept in kerosene?
Last Answer : Sodium; Potassium
Description : What willl happen if density of ball bearing is less than density of glycerine oil?
Last Answer : What is the answer ?
Description : Oil is a/an (A) Mixture of glycerides (B) Mixture of glycerides of fatty acids (C) Solid at normal temperature (D) Ester of alcohols other than glycerine
Last Answer : (B) Mixture of glycerides of fatty acids
Description : Glycerine is a by-product of the __________ industry. (A) Soap (B) Detergent (C) Oil hydrogenation (D) Paint
Last Answer : (A) Soap
Description : Which one of the following petroleum refinery products has the lowest boiling point? (1) Kerosene (2) Gasoline (3) Diesel (4) Lubricating oil
Last Answer : (4) Lubricating oil Explanation: Lubricating oil is the most commonly used lubricant because of its wide range of possible applications. The two basic categories of lube oil are mineral and synthetic.
Description : Which of the following metals is stored in kerosene oil? (1) Platinum (2) Copper (3) Sodium (4) Gold
Last Answer : (3) Sodium Explanation: Owing to its extreme reactivity, sodium occurs in nature only combined in compounds never as a pure elemental metal.
Description : Octane number is related to (a) Gasoline (b) Kerosene oil (c) Diesel oil (d) Lubricating oi
Last Answer : Gasoline
Description : Yellow glycerine is made into white, using (A) Activated carbon (B) Diatomaceous earth (C) Bauxite (D) Bentonite
Last Answer : (A) Activated carbon
Description : Explain the effect of increasing the temperature of a liquid, on intermolecular forces operating between its particles. What will happen to the viscosity of a liquid if its temperature is increased? Arrange the following in increasing order of viscosity-water, hexane, glycerine.
Last Answer : Ans. On increasing the temperature , the kinetic energy of liquid molecules increases so that it can overcome the attractive forces between the molecules and hence liquid can flow more easily i.e. viscosity decreases. Order of increasing viscosity : hexane < water < glycerine.
Description : Spirit varnish generally consists of (A) Oil, wax and resin (B) Alcohol, wax and turpentine (C) Pigment and synthetic resin (D) Spirit and shellac
Last Answer : Answer: Option D
Description : Which one of the following is used as preservative for foodstuff? (1) Sodium Benzoate (2) Picric acid (3) Glycerine (4) Sodium Chloride
Last Answer : (1) Sodium Benzoate Explanation: Sodium benzoate is a preservative. It is bacteriostatic and fungistatic under acidic conditions. It is most widely used in acidic foods such as salad dressings (vinegar), ... (vinegar), and condiments. It is also used as a preservative in medicines and cosmetics.
Description : Glycerine and what other substance are made by heatin animal fats or vegetable oils with sodium hydroxide?
Last Answer : ANSWER: SOAP
Description : Which one of the following is used as preservative for foodstuff ? (1) Sodium Benzoate (2) Picric acid (3) Glycerine (4) Sodium Chloride
Last Answer : Sodium Benzoate
Description : What kind of substances are water , oil , kerosene ?
Last Answer : Water , oil , kerosene are liquids.
Description : To make a solution for filling radiator one bag of washing soda and 0.5 kg of kerosene oil should be added in water amounting a) 6 kg b) 8 k8 c ) 10 kg d) 12 kg
Last Answer : c ) 10 kg
Description : Assertion: Phosphorus tribromide is ofter preferred as a reagent for the transformation of an alcohol to the corresponding alkyl bromide Reason: The n
Last Answer : Assertion: Phosphorus tribromide is ofter preferred as a reagent for the transformation of an alcohol to ... D. Assertion is false, Reason is true
Description : Pick up the correct statement from the following: (A) The sand in the sand pile is well compacted (B) The sand is kept moist at the time of placing and tamping (C) Sand piles are generally used under column loads (D) All of the above
Description : Which one of the following forms of phosphorus is most reactive? (1) Black phosphorus (2) White phosphorus (3) Violet phosphorus (4) Red phosphorus
Last Answer : (2) White phosphorus Explanation: White phosphorus is the most reactive form of phosphorus. It is made up of discrete P4 tetrahedra which are subjected to very high angular strain as the angles ... reactive. It ignites spontaneously at about 50°C, and at much lower temperatures if finely divided.
Description : The tip of the match-stick contains – (1) phosphorus pentoxide (2) white phosphorus (3) red phosphorus (4) phosphorus trichloricle
Last Answer : (3) red phosphorus Explanation: A typical modern match is made of a small wooden stick or stiff paper. One end is coated with a material that can be ignited by frictional heat generated by ... in rows stapled into matchbooks. They are commonly sold by tobacconists and many other kinds of shops.
Description : Allotropic modifications of phosphorus include each of the following EXCEPT: w) red phosphorus x) black phosphorus y) white phosphorus z) green phosphorus
Last Answer : ANSWER: Z -- GREEN PHOSPHORUS
Last Answer : White phosphorus
Description : The tip of the match-stick contains (1) phosphorus pentoxide (2) white phosphorus (3) red phosphorus (4) phosphorus trichloride
Last Answer : red phosphorus
Last Answer : No one can make kerosene. It is made naturally.
Description : Which of the following is the lightest and most volatile liquid fuel A. diesel B. kerosene C. fuel oil D. gasoline
Last Answer : ANSWER : D
Description : Which of the following is the lightest and most volatile liquid fuel? a. diesel b. kerosene c. gasoline d. fuel oil
Last Answer : ANSWER c. gasoline
Description : The fuel -substance that causes minimum atmospheric pollution is (a) hydrogen (b) kerosene oil (c) coke (d) gasoline
Last Answer : Ans:(a)
Description : On the administered price of which of the following articles no subsidy is given? (1) DAP (2) ATF (3) LPG (4) Kerosene oil
Last Answer : (2) ATF Explanation: In India, no subsidy is given to Aviation Turbine Fuel (ATF). Indian Oil Aviation Service is a leading aviation fuel solution provider in India and the most-preferred supplier of ... . Combined with a high base price, fuel now represents 45-55% of a carrier's operating costs.
Description : Why does Kerosene oil rise up in the wick of lantern?
Last Answer : Because of surface tension
Description : Carbon/hydrogen ratio (by weight) is maximum (out of following) for (A) Gasoline (B) Kerosene (C) Light gas oil (D) Heavy fuel oil
Last Answer : (A) Gasoline
Description : Visbreaking process is used mainly for making (A) High cetane diesel (B) High octane gasoline (C) Fuel oil (D) Smoke free kerosene
Last Answer : (C) Fuel oil
Description : Which of the following has the lowest viscosity (at a given temperature) of all? (A) Naphtha (B) Kerosene (C) Diesel (D) Lube oil
Last Answer : (A) Naphtha
Description : Which of the following has the maximum °API gravity of all? (A) Diesel (B) Kerosene (C) Petrol (D) Furnace oil
Last Answer : (C) Petrol
Description : Which of the following contains maximum sulphur? (A) Diesel (B) Petrol (C) Kerosene (D) Fuel oil
Last Answer : (D) Fuel oil