Description : The product formed in the reaction of `SOCl_2` (thionyl chloride) with white phosphorous is.
Last Answer : The product formed in the reaction of `SOCl_2` (thionyl chloride) with white phosphorous is. A. `PCl_(3)` B. `SO_(2)Cl_(2)` C. `SCl_(2)` D. `POCl_(3)`
Description : 4-amino-3-methylbutanoic acid is treated with thionyl chloride followed by ammonia to obtain compound X. X on reaction with, bromine in an alkaline me
Last Answer : 4-amino-3-methylbutanoic acid is treated with thionyl chloride followed by ammonia to obtain compound X. X on ... B. 80 mL C. 120 mL D. 200 mL
Description : Aldehydes can be distinguished from ketones by using (a) Ammoniacal AgNO3 solution (b) Phenylhydrazine (c) Saturated NaHSO3 solution (d) Thionyl chloride
Last Answer : Ammoniacal AgNO3 solution
Description : `CH_(3)COOH overset((i) PCl_(3)+Cl_(2) ("excess"))underset((ii) O_(2))to (X) overset(SOCl_2) to (Y) overset(H_(2)//Pd//BaSO_(4))to(Z) overset(OH^(-))t
Last Answer : `CH_(3)COOH overset((i) PCl_(3)+Cl_(2) ("excess"))underset((ii) O_(2))to (X) overset(SOCl_2) to (Y) ... W+S ` Write the structure of X,Y,Z , W and S
Description : White phosphorous on reaction with `NaOH` gives `PH_(3)` and
Last Answer : White phosphorous on reaction with `NaOH` gives `PH_(3)` and A. `Na_(2)HPO_(3)` B. `NaH_(2)PO_(2)` C. `NaH_(2)PO_(3)` D. `Na_(3)PO_(4)`
Description : Reaction of phosphate rock with 98% H2SO4 produces (A) Ortho-phosphoric acid (B) Superphosphate (C) White phosphorous (D) None of these
Last Answer : (A) Ortho-phosphoric acid
Description : Pick out the wrong statement. (A) 'Green acid' is the other name of phosphoric acid produced by the reaction of phosphate rock & sulphuric acid (B) Chemically unreactive nature of ... in the manufacture of safety matches, is converted into white phosphorous by vaporisation followed by condensation
Last Answer : (C) Red phosphorous is the most reactive allotropic form of phosphorous
Description : Renal ricket is caused by renal tubular defect (usually inherited) which interferes with reabsorption of (A) Calcium (B) Phosphorous (C) Sodium (D) Chloride
Last Answer : Answer : B
Description : The product obtained after the heating of White Phosphorous at a high temperature is?
Last Answer : Black Phosphorous
Description : A student took Sodium Sulphate solution in a test tube and added Barium Chloride solution to it. He observed that an insoluble substance has formed. The colour and molecular formula of the insoluble substance is (a) Grey, Ba2SO4 (b) Yellow, Ba(SO4)2, (c) White, BaSO4 (d) Pink, BaSO4,
Last Answer : Answer: (c) White, BaSO4
Description : `S_(1):(HPO_(3))_(n)` can be prepared by heating phosphorous acid and bromine in a sealed tube. `S_(2)` : dry iodine reacts with ozone and formed yell
Last Answer : `S_(1):(HPO_(3))_(n)` can be prepared by heating phosphorous acid and bromine in a sealed tube. `S_(2)` : ... below 369 K. A. FTF B. TTF C. TTT D. TFF
Description : Propyne is formed by (a) Polymerization of acetylene (b) Reaction of acetylene with methane (c) Reaction of acetylene with methyl chloride (d) Reaction of sodium acetylide with methyl chloride
Last Answer : Reaction of sodium acetylide with methyl chloride
Description : What product is formed when electricity is passed throughan aqueous solution of sodium chloride? (1) Sodium and water (2) Sodium oxide (3) Sodium and chlorine (4) Sodium hydroxide
Last Answer : (4) Sodium hydroxide Explanation: When electricity is passed through an aqueous solution of sodium chloride, it gives hydrogen, chlorine and sodium hydroxide as a product.
Description : What is the name and chemical formula of the main product formed by heating baking soda. (a) sodium carbonate,Na 2 CO 3 (b) Bleaching powder ,CaOCl 2 (c) sodium chloride,Na Cl (d)Plaster of paris ,CaSO 4 .I/2H 2 O
Last Answer : (a) sodium carbonate,Na 2 CO 3
Description : White phosphorous burns in atmosphere at?
Last Answer : 30°C
Description : White phosphorous is kept in?
Last Answer : Water
Description : Heavy duty bearings are usually made of (A) White metal (B) Phosphorous bronze (C) Monel (D) Zinc
Last Answer : (A) White metal
Description : Bearings subjected to light load are made of (A) White metal (B) Phosphorous bronze (C) Monel (D) Silicon bronze
Last Answer : (B) Phosphorous bronze
Description : Bush bearings are made of (A) Mild steel (B) Phosphorous bronze (C) White metal alloys (D) None of these
Description : Both white phosphorous as well as red phosphorous (A) Are soluble in CS2 (B) Burns when heated in air (C) Reacts with hot caustic soda solution to give Phosphine (D) All (A), (B), and (C)
Last Answer : (B) Burns when heated in air
Description : Red phosphorous is changed into white phosphorous by (A) Heating in presence of light (B) Melting under pressure (C) Vaporisation followed by condensation (D) None of these
Last Answer : (C) Vaporisation followed by condensation
Description : Maximum stability of white phosphorous is at (A) Very high pressure (B) Atmospheric pressure (C) Room temperature (D) > 600°C
Last Answer : (D) > 600°C
Description : The most stable allotropic form of phosphorous is the __________ phosphorous. (A) White (B) Black (C) Yellow (D) Red
Last Answer : (B) Black
Description : White phosphorous is stored under water, because (A) It does not react with water (B) It is poisonous (C) Its kindling temperature in dry air is very low (D) It is unstable
Last Answer : (C) Its kindling temperature in dry air is very low
Description : White Phosphorous is place under the
Last Answer : Cold water
Description : Consider the following chemical reaction X + Barium chloride——–> Y + Sodium chloride (White ppt) (a) Identify ‘X’ and ‘Y’ (b) The type of reaction -Democratic 10th
Last Answer : (a) ‘X’ is Na2SO4 and Y is BaSO4. (b) The type of reaction Na2SO4 + BaCl2—–> BaSO4 + 2NaCl (White ppt) The reaction is a precipitation reaction. It is also called a double displacement reaction.
Description : Reaction of Cresylic acid with __________ produces Tricresyl phosphate.. (A) Phosphorous pentoxide (B) Phosphorous oxychloride (C) Ammonium phosphate (D) Calcium phosphate
Last Answer : (B) Phosphorous oxychloride
Description : The product obtained when propanamide is distilled with phosphorous pentoxide is `(CH_3CH_(2)CO)_(2)O`
Last Answer : The product obtained when propanamide is distilled with phosphorous pentoxide is `(CH_3CH_(2)CO)_(2)O` A. `CH_(3) ... . `(CH_(3)CH_(2)COO)_(3)PO` D.
Description : The product of serum calcium concentration (mg/dl) and serum inorganic phosphorous concentration (mg/dl) is decreased in (A) Rickets (B) Hypoparathyroidism (C) Hyperparathyroidism (D) Renal failure
Last Answer : Answer : A
Description : The product of serum calcium concentration (mg/dl) and serum inorganic phosphorous concentration (mg/dl) in children is about (A) 30 (B) 40 (C) 50 (D) 60
Last Answer : Answer : C
Description : The product of serum calcium concentration (mg/dl) and serum inorganic phosphorous concentration (mg/dl) in adults is about (A) 30 (B) 40 (C) 50 (D) 60
Description : What is the major organic product of the reaction between benzene and isobutyl chloride in the presence of AlCl3? (a) tert-butylbenzene (b) isobutylbenzene (c) n-butylbenzene (d) chlorobenzene
Last Answer : tert-butylbenzene
Description : 1.12 litre dry chlorine gas at STP was passed over a heated metal when 5.56 g of chloride of the metal was formed. What is the equivalent weight of th
Last Answer : 1.12 litre dry chlorine gas at STP was passed over a heated metal when 5.56 g of chloride of ... formed. What is the equivalent weight of the metal ?
Description : When a mixture containing `PCl_(3)` and `PCl_(5)` is heated with ethyl alcohol, a total of 4 moles of ehtyl chloride is formed. Mole ratio of `PCl_(3)
Last Answer : When a mixture containing `PCl_(3)` and `PCl_(5)` is heated with ethyl alcohol, a total of 4 moles of ehtyl chloride is ... : 1` C. `1 : 3` D. `2 : 1`
Description : What precipitate is formed from copper chloride and silver nitrate?
Last Answer : Silver chloride is the precipitate in this reaction.CuCl(aq) + AgNO3(aq)-->CuNO3(aq) + AgCl(s)
Description : In a chemical interaction 10 g of hydrogen chloride is added to 20 g of zinc to form 24 g of zinc chloride and a certain amount of hydrogen gas. What mass of hydrogen gas is expected to be formed 6?
Last Answer : The maximum yield of H2 from this reaction under the conditions given is 0.3 g.This is a limiting reagent (reactant) question. The yield of hydrogen gas (H2) is determined for both the hydrogen chloride ... figureThe limiting reagent is HCl, which means that the maximum yield of H2 is 0.3 mol H2.
Description : PVC is formed by polymerization of - (1) Styrene (2) Acetylene (3) Propene (4) Vinyl Chloride
Last Answer : (4) Vinyl Chloride Explanation: Polyvinyl chloride is produced by polymerization of the vinyl chloride monomer (VCM). About 80% of production involves suspension polymerization.
Description : Kidney stones are mainly formed by which of the following compound - (1) Sodium chloride (2) Silicates (3) Calcium bicarbonate (4) Calcium oxalate
Last Answer : (4) Calcium oxalate Explanation: Kidney stones form when your urine contains more crystal-forming substances — such as calcium, oxalate and uric acid — than the fluid in your urine can dilute.
Description : A student prepares aqueous solutions of the following salts: Copper sulphate, ferrous sulphate, sodium sulphate and barium chloride. Write the color of each solution thus formed?
Last Answer : Answer. Copper sulphate (aq) – blue in color Ferrous sulphate (aq) – pale green in color Sodium sulphate (aq) – colorless Barium chloride (aq) – white in color
Description : First product formed when CO2 is fixed during dark reaction in C3 cycle. -Biology
Last Answer : answer:
Description : In the reaction , `4A+2B+3CtoA_(4)B_(2)C_(3)` what will be the number of moles of product formed , starting from 1 mole of A,06 mole of B and 0.72 mol
Last Answer : In the reaction , `4A+2B+3CtoA_(4)B_(2)C_(3)` what will be the number of moles of product formed , starting from 1 ... A. 0.25 B. 0.3 C. 2.4 D. 0.24
Description : The major product formed in the reaction given below will be :
Last Answer : The major product formed in the reaction given below will be : A. B. C. D.
Description : The product formed by the reaction of acetamide with bromine in presence of `NaOH` is
Last Answer : The product formed by the reaction of acetamide with bromine in presence of `NaOH` is A. `CH_(3)CN` B. `CH_(3) ... `CH_(3)CH_(2)OH` D. `CH_(3)NH_(2)`
Description : The main product X formed in the following reaction is
Last Answer : The main product X formed in the following reaction is A. B. C. D.
Description : The oxidation state of chrominium in the final product formed in the reaction between `KI` and acidified potassium dichromate soluttion is
Last Answer : The oxidation state of chrominium in the final product formed in the reaction between `KI` and acidified potassium dichromate ... `+6` C. `+2` D. `+3`
Description : The product formed in the reaction is :
Last Answer : The product formed in the reaction is : A. B. C. D.
Description : The major product formed in the reaction is:
Last Answer : The major product formed in the reaction is: A. B. `H_(3)C-CH=CD_(2)` C. `H_(2)C =CH-CD_(3)` D. `H_(2)C=N-CH_(3)`
Description : The major product (B) formed in the reaction sequence is: `overset(Ph-overset(O)overset(||)(C)-CI)underset(dil.NaOH)rarrA overset(1.CH_(3)MgBr)underse
Last Answer : The major product (B) formed in the reaction sequence is: `overset(Ph-overset(O)overset(||)(C)-CI)underset(dil. ... )overset(||)(C)-CH_(3)` B. C. D.