Description : The most commonly used substances in fluorescent tubes are (a) sodium oxide and argon (b) sodium vapour and neon (c) mercury vapour and argon (d) mercuric oxide and neon
Last Answer : Ans:(c)
Description : Give reasons: a) Phosphorous pentachloride is unstable. b) Phosphorous trichloride fumes in moisture.
Last Answer : Ans: a) Because of two longer axial bonds. b) Because it reacts with water and forms hydrochloric acid.
Description : A common fluorescent tube contains (a) sodium vapour (b) argon at low pressure (c) mercury vapour at low pressure (d) mercuric oxide and neon
Description : What happens when? a) A cleaned iron plate or iron nail is kept in 10g of copper sulphate solution. b) A pinch of mercuric oxide is kept in a test tube. c)A small crystal of silver nitrate is dissolved in distilled water and a drop of ammonium hydroxide & a pinch of glucose powder are added.
Last Answer : a) A cleaned iron plate or iron nail is kept in 10g of copper sulphate solution. After a few hours a coating of copper is seen on iron nail/plate. It is based on displacement reaction. ... on the inner walls of the test tube. Aldehyde group in glucose reduced silver nitrate to metallic silver.
Last Answer : : The signal of mercuric oxide is Hg2O
Description : When glycerol is treated with a mixture of concentrated HNO3 + H2SO4, it forms (a) Nitroethane (b) 1-Nitropropane (c) Nitroglycerine (d) 2-Nitropropane
Last Answer : Nitroglycerine
Description : A drug which produces qualitatively different actions when administered through different routes is: A. Phenytoin sodium B. Hydralazine C. Magnesium sulfate D. Nitroglycerine
Last Answer : C. Magnesium sulfate
Description : (1) aluminium powder and ammonium nitrate Explanation: Ammonal is an explosive made up of ammonium nitrate and aluminium powder. The ammonium nitrate functions as an oxidizer and the aluminium ... a fairly substantial shock, though it is still more sensitive than trinitrotoluene and composition C4.
Last Answer : Gelatin is mostly used in making icecreams in order to - (1) prevent making a colloid (2) stabilise the colloid and prevent crystallisation (3) stabilise mixture (4) enrich the aroma
Description : Trinitrotoluene is – (1) used to melt metals (2) used to fuse two metals (3) used as an abrasive (4) used as an explosive
Last Answer : (4) used as an explosive Explanation: Trinitrotoluene (C6H2 (NO2)3.CH3), abbreviated as TNT, is sometimes used as a reagent in chemical synthesis, but it is best known as an explosive material ... The explosive yield of TNT is considered to be the standard mea-sure of bombs and other explosives.
Description : Trinitrotoluene (TNT), an explosive, is made by the nitration of (A) Nitrobenzene (B) Toluene (C) Nitrotoluene (D) Benzene
Last Answer : (B) Toluene
Description : Which of the following is an explosive? (A) Nitro-glycerine (B) Trinitrotoluene (TNT) (C) Cellulose nitrate (D) All (A), (B), and (C)
Last Answer : (D) All (A), (B), and (C)
Description : What is the common name for 2,4,6, Trinitrotoluene (read: tri-nitro-toluene)?
Last Answer : ANSWER: TNT
Description : Trinitrotoluene is (1) used to melt metals (2) used to fuse two metals (3) used as an abrasive (4) used as an explosive
Last Answer : used as an explosive
Description : Which chemical is used to ripen mangoes artificially? (1) Sulphur Dioxide (2) Nitrous Oxide (3) Calcium Carbide (4) Phosphorous
Last Answer : (3) Calcium Carbide Explanation: The chemical widely used for artificially ripening fruits is calcium carbide (CaC2). It is used to ripen about 80 per cent of mangoes in India.
Description : A semi-tractor trailer is pulling a trailer transporting Hazard Class/Division 1.3. The tractor will carry no explosives. Which statement is the most correct?
Last Answer : The Explosives 1.3 placard may be placed on either the front of the tractor or the front of the trailer
Description : The substances that cause air pollution are 1. Smoke 2. Sulphur dioxide 3. Argon 4. Carbon monoxide The correct answers are: (a) 1, 2 and 3 (b) 1, 2, 3 and 4 (c) 2, 3 and 4 (d) 1, 2 and 4
Last Answer : Ans:(d)
Description : Denatured alcohol 1. Is an impure form of ethanol 2. Is unfit for drinking as it contains poisonous substances 3. Contains impurities 4. Is very unsafe to consume The correct answers are: (a) 1, 2 and 4 (b) 1, 2, 3 and 4 (c) 2, 3 and 4 (d) 1, 2 and 3
Last Answer : Ans:(b)
Description : The substances used in the manufacture of stainless steel are 1. Chromium 2. Iron 3. Copper 4. Steel The correct answers are: (a) 1 and 4 (b) 1, 2, 3 and 4 (c) 2, 3 and 4 (d) 1, 2 and 4
Last Answer : Ans:(a)
Last Answer : : Chemical signal of phosphorus trichloride PCl3
Description : Phosphorus trichloride, `PCl_(3)` undergoes, hydrolysis at room temperature to produce an oxoacid. It has the formula :
Last Answer : Phosphorus trichloride, `PCl_(3)` undergoes, hydrolysis at room temperature to produce an oxoacid. It has the formula : ... 3)PO_(4)` D. `H_(3)PO_(2)`
Description : Which statement regarding iodine trichloride is Incorrect.
Last Answer : Which statement regarding iodine trichloride is Incorrect. A. (A) It forms dimer in gaseous state ... a mixture of iodous acid and hydrochloric acid.
Description : What is the mass of 4.75 moles of arsenic trichloride?
Last Answer : 4,75 moles of arsenic trichloride (AsCl3) is equal to 181,28 g.
Description : Use complete sentences to explain why AlCl3 is called “aluminum chloride†(no prefix required), but BCl3 is called “boron trichloride.�
Last Answer : Ionic compounds do not have prefixes but covalent compounds have prefixes. “Aluminum chloride†is a ionic compound and "boron tri-chloride†is a covalent compound.
Description : To effectively clean a commutator in good physical condition, you should use ____________. A. trichloride ethylene B. kerosene C. a canvas wiper D. a commutator stone
Last Answer : Answer: C
Description : The use and transfer of energy in all cells involves the same compound, ATP. The letters ATP stand for the chemical: a) atrophine trichloride b) aluminum trioxide c) adenosine triphosphate d) none of the above
Last Answer : ANSWER: C -- ADENOSINE TRIPHOSPHATE
Description : The tip of the match-stick contains (1) phosphorus pentoxide (2) white phosphorus (3) red phosphorus (4) phosphorus trichloride
Last Answer : red phosphorus
Description : Mercuric chloride poisoning?
Last Answer : DefinitionMercuric chloride is a very poisonous form of Mercury. It is a type of mercury salt. There are different types of mercury poisonings. This article discusses poisoning from ... : This list may not be all inclusive.SymptomsAbdominal pain(severe)Breathing difficulty - severeDecreased
Description : Acetaldehyde is produced by hydration of acetylene in a sulphuric acid solution of mercuric sulphate. Hydration tower is made of (A) Rubber lined mild steel (B) Lead lined mild steel (C) Aluminium (D) Cast iron
Last Answer : (A) Rubber lined mild steel
Description : Chaga’s disease can be diagnosed by A A. Xenodiagnosis B. Thymol turbidity tes C. Both D. Mercuric chloride test
Last Answer : Chaga’s disease can be diagnosed by
Description : Surra in animals can be diagnosed by D A. Thymol turbidity test B. Card agglutination test C. Mercuric chloride test D. All above
Last Answer : All above
Description : The test used to detect raised levels of IgG and IgM in Trypanosoma evansi infected individuals is the D A. Thymol turbidity test B. Card agglutination test C. Mercuric chloride test D. Formol gel test
Last Answer : Formol gel test
Description : Phenyl mercuric acetate (PMA) results in (a) reduced photosynthesis (b) reduced transpiration (c) reduced respiration (d) killing of plants.
Last Answer : (b) reduced transpiration
Description : A compound, C4H6, reacts with bromine and forms a white precipitate with ammoniacal silver nitrate solution. It reacts with dilute H2SO4 in the presence of mercuric sulfate to form 2-butanone. The compound could be (a) 1-Butyne (b) 1-Butene (c) 2-Butyne (d) 2-Butene
Last Answer : 1-Butyne
Description : Acetylene reacts with water in the presence of sulfuric acid and mercuric sulfate to give (a) Acetone (b) Acetic acid (c) Formaldehyde (d) Acetaldehyde
Last Answer : Acetaldehyde
Description : How many tablets ,each containing 8.75 grains of mercuric chloride will be required to make one pint of 0.2% solution?
Last Answer : 4.375 gr. in 1 fl ounce = 1% w/v solution 4.375 gr X 0.2 = 0.875 gr required to get 1 fl.oz 0.2% 0.875 gr x 20 = 17.5 gr required to get 20 fl.oz 0.2 % 17.5 gr/8.75 gr = 2 tablets
Description : How many tablets, each containing 8.75 grains of mercuric chloride will be required to make one quart of 0.05% solution?
Last Answer : 4.375 gr. in 1 fl ounce = 1% w/v solution 4.375 gr X 0.05 = 0.2187 gr required to get 1 fl.oz 0.05% 0.2187 gr x 40 = 8.748 gr≈ 8.75 grain required to get 40 fl.oz 0.05 % 8.75 gr/8.75 gr = 1 tablets Therefore, one tablet is required to prepare one quart of 0.05% solution.
Description : How can we use electronics to detect explosives?
Last Answer : Since many explosives are triggered by electronics now, an electronic detector is not a good idea. The detection equipment has as good a chance of triggering a device as detecting one.
Description : The substance used in the production of nylon; rayon; explosives; fertilizers and dyes?
Last Answer : Ammonia
Description : Can you put out an out of control wildfire out with explosives?
Last Answer : Red Adair put out oil well fires with explosives. A stoichiometric mix of acetylene or popane and oxygen will make a blast that leaves only carbon dioxide and water vapor in its wake. It deprives the fire of oxygen.
Description : Curious about the old fashioned movie style of detonating explosives.
Last Answer : answer:Randomly looked around, Wiki is being shit as per usual, so I dug deeper. Here’s a message board where some people explain this. So it’s called a plunger. I am not confirming anything on the accuracy of what is said there. Made for some inneressin’ readin’ though.
Description : Let’s talk recreational explosives, what are your thoughts?
Last Answer : Sounds like you're asking to be put on a black list in some agency file. I personally think explosions are fun, but not being an explosion expert I would say it also sounds dangerous and more than a ... fully aware that I'm a hypocrite and would probably be right there blowing things up if I could.
Description : What are the readily available explosives ?
Last Answer : Plutonium. Acetone. Nitroglycerin. Petrol.
Description : Name some explosives ?
Last Answer : TNT , organic peroxide , nitroglycerin etc.
Description : What are explosives ?
Last Answer : Explosives are TNT , organic peroxide , nitroglycerin.
Last Answer : Nitric acid is used.
Description : How does a dog know that there is an explosive in the luggage?
Last Answer : Smell. So he is trained, to the smell of explosives.
Description : What are the least sensitive explosives?
Last Answer : What are the least sensitive explosives used by military
Description : What is the DOT symbol for explosives?
Last Answer : There are a number of them depending on what type of explosivesyou are dealing with. To determine which symbol is appropriate, seethe DOT Hazardous Markings, Labeling and Placarding guide.