What is the catalyst used in lead chamber process?

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Description : Sulphuric acid is used as a catalyst in the (A) Hydrogenation of oils (B) Gas phase oxidation of SO2 in chamber process (C) Alkylation of hydrocarbons (D) None of these

Last Answer : (C) Alkylation of hydrocarbons

Description : Pick out the wrong statement. (A) Chamber process of sulphuric acid manufacture produces pure acid of concentration < 80% (B) Contact process of sulphuric acid manufacture produces pure acid of ... of 20% oleum (D) Contact process of sulphuric acid manufacture uses nickel as the catalyst

Last Answer : (D) Contact process of sulphuric acid manufacture uses nickel as the catalyst

Description : Catalyst used in the manufacture of sulphuric acid by chamber & contact processes are respectively (A) V2O5 & Cr2O3 . (B) Oxides of nitrogen & Cr2O3 (C) V2O5 on a porous carrier & oxides of nitrogen (D) Oxides of nitrogen & V2O5 on a porous carrier

Last Answer : (D) Oxides of nitrogen & V2O5 on a porous carrier

Description : Lead Chamber process is related to

Last Answer : Sulfuric Acid (H2SO4)

Description : Sodium carbonate is produced by------? A. haber process B. Amonia solvay process (Answer) C. decons process D. lead chamber process

Last Answer : B. Amonia solvay process (Answer)

Description : Tetra ethyle lead (TEL) is - (1) a catalyst in burning fossil fuel (2) an antioxidant (3) areductant (4) an antiknock compound

Last Answer : (4) an antiknock compound Explanation: Tetraethyl lead was extensively used as an additive to gasoline, wherein it served as an effective antiknock agent and prevented exhaust valve and seat wear. ... needed. Typical formulations called for 1 part of prepared TEL to 1260 parts untreated gasoline.

Description : Platinum is a versatile catalyst for many processes in chemical industries. It is highly prone to be poisoned by the presence of (A) Carbon (B) Arsenic (C) Lead (D) Sulphur

Last Answer : (B) Arsenic

Description : Tetra ethyle lead (TEL) is (1) a catalyst in burning fossil fuel (2) an antioxidant (3) a reductant (4) an antiknock compound

Last Answer :  an antiknock compound

Description : In chamber process of sulphuric acid manufacture in industry, the gas phase oxidation of SO2 to SO3 is accomplished by a __________ reaction. (A) Non-catalytic homogeneous (B) Non-catalytic heterogeneous (C) Catalytic homogenous (D) Catalytic heterogeneous

Last Answer : (C) Catalytic homogenous

Description : Mannheim furnace is used in the manufacture of (A) Hydrochloric acid (B) H2SO4 by Chamber process (C) Calcium carbide (D) Corundum

Last Answer : (A) Hydrochloric acid

Description : The chamber process is (A) Preferred over contact process for producing 98 to 100% H2SO4 and various oleums (B) Non-catalytic and operates only on pyrites (C) A batch process for directly producing high strength (98 to 100%) H2SO4 (D) None of these

Last Answer : (D) None of these

Description : _________ process is used for producing soda ash. (A) Chamber (B) Chance (C) Tromp (D) Solvay

Last Answer : (D) Solvay

Description : Contact process of sulphuric acid manufacture (A) Yields acid of higher concentration than chamber process (B) Yields acids of lower concentration than chamber process (C) Is obsolete (D) Eliminates absorber

Last Answer : (A) Yields acid of higher concentration than chamber process

Description : Indicate which of the statement is incorrect (a) The detritus tank is type of a grit chamber (b) In detritus tank, velocity of flow is further reduced (c) Grit chambers are provided in the sewage ... to remove the heavier inorganic matter as grit, sand etc. from the sewage (d) None of them*

Last Answer : (d) None of them*

Description : Explain hot chamber die casting process with neat sketch.

Last Answer : Hot chamber die casting : In a hot chamber submerged plunger-type machine, the plunger operates in one end of a gooseneck casting which is submerged in the molten metal. With the plunger in ... . Heating is continued throughout the operation to keep the molten metal sufficiently liquid.

Description : Illustrate with neat sketch the process to control production of NOx in combustion chamber.

Last Answer : Method to control NOx: The EGR system is used to reduce the amount of NOx in the exhaust. NOx production increases as the temperature inside the combustion chamber rises due to acceleration or heavy engine loads, ... (less than 10% of total) to be supplied into the incoming air: fuel mixture.  

Description : The catalyst used in the manufacture of sulphuric acid by contact process is `:

Last Answer : The catalyst used in the manufacture of sulphuric acid by contact process is `: A. `Al_(2)O_(3)` B. `Cr_(2)O_(3)` C. `V_(2)O_(5)` D. `Mn_(3)O_(4)`

Description : The photo -oxidation process is initiated by (a) Heat (b) Light (c) Catalyst (d) Oxygen

Last Answer : Ans:(b)

Description : Photoxidation process is initiated by – (1) light (2) heat (3) oxygen (4) catalyst

Last Answer : (1) light Explanation: Oxidation is a process in which something (an atom or molecule or substance) loses an electron to something else. Photooxidation is therefore the process of oxidation which is ... as UV or artificial light. This process is the most significant factor in weathering of polymers.

Description : Catalyst used in the production of high density polythene by low pressure Ziegler process is (A) Aluminium triethyl activated with TiCl4 (B) Platinum (C) Molybdenum (D) Nickel

Last Answer : (A) Aluminium triethyl activated with TiCl4

Description : Low pressure Zeigler process for the manufacture of polythene uses a catalyst which is (A) Ni (B) V2O5 (C) Fe (D) Aluminium triethyl combined with titanium tetrachloride

Last Answer : (D) Aluminium triethyl combined with titanium tetrachloride

Description : Zeigler process (A) Produces high density polythene (B) Uses no catalyst (C) Produces low density polythene (D) Employs very high pressure

Last Answer : (A) Produces high density polythene

Description : Low pressure Zeigler process of polythene manufacture (A) Employs a pressure of 30 kgf/cm2 (B) Achieves an yield of 95-98% based on ethylene (C) Produces very low density polythene (D) Does not use any catalyst for polymerisation

Last Answer : (B) Achieves an yield of 95-98% based on ethylene

Description : Pick out the wrong statement. (A) Lower boiling paraffins have higher octane number than higher paraffins (B) Dehydrogenation of naphthenes to aromatics is a desirable reaction in reforming ... is dearomatised kerosene (D) Catalyst used in catalytic reforming is platinum on silica-alumina base

Last Answer : (C) The most ideal feedstock for thermal reforming is dearomatised kerosene

Description : Catalytic desulphurisation process used for sweetening of straight run gasoline and kerosene uses __________ as catalyst. (A) Bauxite (B) Fuller’s earth (C) Activated clay (D) All (A), (B) & (C)

Last Answer : (D) All (A), (B) & (C)

Description : Catalyst used in alkylation process is (A) Sulphuric acid (B) Nickel (C) Silica gel (D) Alumina

Last Answer : (A) Sulphuric acid

Description : Catalyst used in isomerisation process is (A) H2SO4 (B) H3PO4 (C) HF (D) AlCl3

Last Answer : (D) AlCl3

Description : The temperature for the Haber process is 500° C Catalyst used in Haber process?

Last Answer : Iron

Description : Catalyst used in Fischer-Tropsch process is (A) Nickel (B) Zinc oxide (C) Alumina (D) Thorium oxide

Last Answer : (A) Nickel

Description : Catalyst used in the manufacture of NH3 by Haber's process is finely divided (A) Nickel (B) Iron (C) Vanadium pentoxide (D) Alumina

Last Answer : (B) Iron

Description : Catalyst used in Haber's process for ammonia production is (A) Reduced iron oxide (B) Nickel (C) Vanadium pentoxide (D) Silica gel

Last Answer : (A) Reduced iron oxide

Description : If the catalyst pore size is small in comparison with the mean free path, collisions with the pore wall controls the process'. The diffusivity under this condition is called 'Knudsen diffusivity', which is affected by the (A) Pressure (B) Temperature (C) Both (A) & (B) (D) Neither (A) nor (B)

Last Answer : (B) Temperature

Description : A first order reaction A → B occurs in an isothermal porous catalyst pellet of spherical shape. If the concentration of A at the centre of the pellet is much less than at the external surface, the ... A) Diffusion within the pellet (B) Reaction (C) External mass transfer (D) None of the above

Last Answer : (A) Diffusion within the pellet

Description : Brunauer, Emmet and Teller (BET) equation is used to determine the specific surface area of a porous particle but not the pore volume & the porosity of the catalyst bed. Which of the following postulates ... (except the first one) is involved in each of the evaporation process (D) None of these

Last Answer : (B) There is no dynamic equilibrium between successive layer

Description : Nickel is not used as a catalyst in the (A) Fischer-Tropsch process (B) Shift conversion (C) Hydrogenation of oil (D) Ostwald's process of HNO3 manufacture

Last Answer : (D) Ostwald's process of HNO3 manufacture

Description : . Platinum catalyst used in the earlier days of sulphuric acid manufacture by contact process suffers from the drawback like (A) High cost (B) Fragile nature (C) Easy poisoning tendency (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Description : Which of the following may be viewed as a catalyst in the manufacturesoda ash by Solvay process? (A) NH3 (B) NaCl (C) CaO (D) Coke

Last Answer : (A) NH3

Description : Zeigler process (A) Produces high density polyethylene (B) Produces low density polyethylene (C) Uses no catalyst (D) Employs very high pressure

Last Answer : (A) Produces high density polyethylene

Description : The industrial process of producing ammonia by the reaction of nitrogen with hydrogen in the presence of catalyst is called?

Last Answer : Haber process

Description : Photooxidation process is initiated by (1) light (2) heat (3) oxygen (4) catalyst

Last Answer : light

Description : Do Rifles have one in a chamber?

Last Answer : Depends on whether the gun is open or closed bolt. The latter do.

Description : Trump enters the Queen of England's private chamber tomorrow, who do you believe will get the most out of this, err..."encounter"?

Last Answer : The last Queen of England died sometime in the 17th century so I don’t think she would mind too much. The present Queen of the United Kingdom and the other Commonwealth realms is appalled at the prospect and would rather entertain Mick Fagan in her private quarters than meet with Trump.

Description : Violin players: Do you have any good songs to practice before entering a chamber orchestra?

Last Answer : answer:Meditation from Thaïs is good for changing positions, producing quality sounds on the E string, bow control etc Air on a G String, again for changing position all down on ... by Francois Francoeur-Kreisler for hard graft semiquavers Eine Kleine Nachtmusik for simple double stopping

Description : Should Google dump the Chamber? [See details].

Last Answer : answer:Yes, and it is a move that they should have made a couple of years ago. As you note in your question, the Chamber's view business at all costs - which generally means that ethics, ... the spectrum, I don't see how Google can reconcile its membership in the Chamber with its professed values.

Description : Can you name 5 good Chamber Folk artists?

Last Answer : You’ve might have already seen this. Last.fm’s six artists tagged ‘chamber-folk’. Hem Jenny Scheinman Sufjan Stevens Paula Frazer Mara Carlyle I can only personally recommend Sufjan. One of my absolute favourites actually! edit: more here, Joanna Newsom is just brilliant.

Description : Particle spray produced in Cloud chamber?

Last Answer : often the high speed particles are due to upper atmosphere collissions just as you suspected, muons are often created up there. A friend of mine did a basic cloud chamber experiment looking at ... much about them affecting your health though as they usually won't interact with anything. gwrnerally

Description : I am broken and apart, all my pieces are in tatters. They lie about unorganized, as if nothing matters. Like humpty dumpty all I want is all my pieces fixed. Yet when you start to help me, your feelings ... I bring anger. To see my original form, you need only look at my chamber. What am I? -Riddles

Last Answer : Jigsaw puzzle

Description : 10. Imagine that you are sitting in a chamber with your back to one wall. An electron beam, moving horizontally from back wall towards the front wall, is deflected by a strong magnetic field to your right side. What is the direction of magnetic field? -Science

Last Answer : The direction of the magnetic field can be determined using the Fleming’s Left hand rule. The direction of the magnetic field will be perpendicular to the direction of current and the direction ... it can be concluded that the direction of the magnetic field inside the chamber is downward.

Description : in france the premier was responsible to the chamber of -General Knowledge

Last Answer : In France, the Premier was responsible to the Chamber of: Deputies.

Description : How many chamber are found in the heart of frog? -General Knowledge

Last Answer : The answer is '3'