Description : The overall mass transfer co-efficient for the absorption of SO2 in air with dilute NaOH solution can be increased substantially by (A) Increasing the gas film co-efficient (B) Increasing the liquid film co-efficient (C) Increasing the total pressure (D) Decreasing the total pressure
Last Answer : (A) Increasing the gas film co-efficient
Description : How do you read a buret?
Last Answer : Need answer
Description : __________ column is used in gas absorption process. (A) Wetted wall (B) Sieve/perforated tray (C) Bubble cap (D) Packed
Last Answer : (D) Packed
Description : If CO2 is not fully absorbed by the KOH solution meant for its absorption in the orsat apparatus, it will appear as (A) O2 (B) CO (C) N2 (D) SO2
Last Answer : (D) SO2
Description : To maximize the combustion efficiency, which of the following in the flue gas needs to be done? a) maximize O2 b) maximize CO2 c) minimize CO2 d) maximize CO
Last Answer : b) maximize CO2
Description : An alkene (A) `C_(16)H_(16)` on ozonolysis gives only one product (B) `C_8H_8O`. Compound (B) on reaction with NaOH/`I_(2)` yeilds sodium benzoate. Co
Last Answer : An alkene (A) `C_(16)H_(16)` on ozonolysis gives only one product (B) `C_8H_8O`. Compound (B) ... `(H_(2)//Pd-C)` gives a racemic mixture
Description : How do I make .1N solution of NaOH?
Last Answer : NaOH is Sodium Hydroxide… or otherwise known as lye. I create a solution of Sodium Hydroxide all the time. Is this for cleaning purposes? For what are you making the solution for? How accurate does the solution really need to be?
Description : The volume (in ml) of 0.5 M NaOH required for the complete reaction with 150 ml of 1.5M `H_(3)PO_(3)` solution is
Last Answer : The volume (in ml) of 0.5 M NaOH required for the complete reaction with 150 ml of 1.5M `H_(3)PO_(3)` solution is A. 1350 B. 900 C. 1250 D. 1150
Description : A solution containing `Na_(2)CO_(3)` and `NaOH` requires `300 ml` of `0.1 N HCl` using phenolphthalein as an indicator. Methyl orange is then added to
Last Answer : A solution containing `Na_(2)CO_(3)` and `NaOH` requires `300 ml` of `0.1 N HCl` using phenolphthalein ... solution is `(NaOH=40, Na_(2)CO_(3)=106)`
Description : 1.250 g of metal carbonate `(MCO_(3))` was treated with 500 mL of 0.1 M HCl solution. The unreacted HCl required 50.0 mL of 0.500 M NaOH solution for
Last Answer : 1.250 g of metal carbonate `(MCO_(3))` was treated with 500 mL of 0.1 M HCl solution. The unreacted HCl ... the metal M A. Mg B. Ca C. Sr D. Ba
Description : For standardizing NaOH solution, which of the following is used as a primary standard ?
Last Answer : For standardizing NaOH solution, which of the following is used as a primary standard ? A. Sodium ... Ammonium Sulfate C. Oxalic acid D. dil. HCl
Description : 125mL of 63% (w/v) `H_(2)C_(2)O_(4).2H_(2)O` solution is made to react with 125mL of a `40%` (w/v) `NaOH` solution. The resulting solution is : (ignor
Last Answer : 125mL of 63% (w/v) `H_(2)C_(2)O_(4).2H_(2)O` solution is made to react with 125mL of a ... ions) A. netural B. acidic C. strongly acidic D. alkaline
Description : The amount of wet NaOH containing 15% water required to prepare 70 liters of 0.5 N solution is:
Last Answer : The amount of wet NaOH containing 15% water required to prepare 70 liters of 0.5 N solution is: A. 1.65 kg B. 1.4 kg C. 16.5 kg D. 140 kg
Description : One litre of a solution contains 18.9 g of `HNO_(3)` and one litre of another solution contains 3.2 g of NaOH. In what volume ratio must these solutio
Last Answer : One litre of a solution contains 18.9 g of `HNO_(3)` and one litre of another solution contains 3.2 g of NaOH. In ... B. `8:3` C. `15:4` D. `4:15`
Description : Howmany of the following compounds are dissolve in aqeous solution of `NaOH` (1) Phenol (2) p-cresol (3) Benzoic acid (4) Benzene sulphonic acid (5) A
Last Answer : Howmany of the following compounds are dissolve in aqeous solution of `NaOH` (1) Phenol (2) p-cresol ... P-toluedine (7) Picric acid (8) Squaric acid
Description : Howmany of the following compounds are dissolve in aqeous solution of `NaOH` (i) Phenol (ii) Cyclohexanol (iii) 2, 4-di nitro phenol (iv) Benzoic (v)
Last Answer : Howmany of the following compounds are dissolve in aqeous solution of `NaOH` (i) Phenol (ii) ... ) `alpha-` naphthol (ix) N-methyl aniline
Description : Bauxide ore is made up of `Al_(2)O_(3) + SiO_(2) + TiO_(2) + Fe_(2) O_(3)`. This ore is treated with conc. `NaOH` solution at `500 K` and `35` bar pre
Last Answer : Bauxide ore is made up of `Al_(2)O_(3) + SiO_(2) + TiO_(2) + Fe_(2) O_(3)`. This ore is treated with ... `Na_(2)SiO_(3)` both D. `Na_(2)SiO_(3)` Only
Description : When Bauxite is heated with NaOH solution, the water soluble compound formed is
Last Answer : When Bauxite is heated with NaOH solution, the water soluble compound formed is A. `NaAlO_(2)` B. `Na_(3)AlO_(3)` C. `Al(OH)_(3)` D. `Al_(2)O_(3)`
Description : `XeO_(3)` forms xenate ion in alkaline medium. `XeO_(3) +NaOH rarr Na[HXeO_(4)]` But the xenate ions slowly disproportionate in alkaline solution as `
Last Answer : `XeO_(3)` forms xenate ion in alkaline medium. `XeO_(3) +NaOH rarr Na[HXeO_(4)]` But the xenate ions slowly ... `Na_(4)XeO_(6)` D. `Na_(4)XeO_(4)`
Description : An inorganic compound X reacts with water to form two cid Y and Z. X also reacts with NaOH to form two salts B and C which remain in solution. The sol
Last Answer : An inorganic compound X reacts with water to form two cid Y and Z. X also reacts with NaOH to form two salts B ... ` C. `SbCl_(3)` D. `PCl_(3)F_(2)`
Description : How many grams of solute in 1.8 L of a 3.5 M NaOH solution?
Last Answer : The mass of NaOH is 352 g.
Description : What is the molarity of a solution made by dissolving 6 moles of naoh in 3 kg?
Description : HOW TO PREPARE 200 mL O.75 N NaOH SOLUTION?
Last Answer : Dissolve 6 g dry sodium hydroxide in 200 mL water.
Description : What volume in mL of a 0.10 M NaOH solution would be required to neutralize 0.0091 moles of CH3COOH in a given vinegar sample?
Last Answer : The volume of NaOH is 99 mL.
Description : The solution made by dissolving Salt (NaOH) in water is called as
Last Answer : Ans. Brine solution
Description : Which of the following is the most suitable material of construction for evaporator & its tubes for concentrating NaOH solution to 70%? (A) Cast iron (B) Steel (C) Nickel (D) Karbate
Last Answer : (C) Nickel
Description : Boiling point elevation of a solution of NaOH (A) Increases rapidly with temperature rise (B) Is almost independent of temperature (C) Is almost independent of pressure (D) Both (B) and (C)
Last Answer : (D) Both (B) and (C)
Description : Benzoic acid and diphenyl ketone are both solids insoluble in water. A mixture of these compounds can be separated if we (a) add the mixture to a solution of NaOH in water, and filter. (b) add ... benzene. (d) It is impossible to separate a mixture of two solids when both are insoluble in water.
Last Answer : add the mixture to a solution of NaOH in water, and filter
Description : Iodobenzene can be prepared by (a) treating chlorobenzene with I2 using FeCl3 catalyst. (b) treating phenol with I2 in NaOH solution. (c) treating benzenediazonium chloride with KI (d) treating benzene with CH3I using AlCl3 catalyst
Last Answer : treating benzenediazonium chloride with KI
Description : When formaldehyde is treated with 50% NaOH solution, it undergoes (a) Cannizzaro reaction (b) Wurtz reaction (c) Aldol condensation (d) Hydrolysis
Last Answer : Cannizzaro reaction
Description : Which of the following alcohols will give a yellow precipitate of iodoform with iodine and dilute NaOH solution? (a) 1-Propanol (b) 2-Propanol (c) 1-Butanol (d) 2-Methyl-2-propanol
Last Answer : 2-Propanol
Description : Anion exchanger is regenerated usually with (A) NaOH (B) H2SO4 (C) Hydrazine (D) Alum solution
Last Answer : (A) NaOH
Description : Diaphragm electrolytic cell as compared to mercury electrolytic cell (A) Produces 70% NaOH solution (B) Requires less specific power consumption for the production of chlorine (C) Requires lesser investment for similar capacity (D) All (A), (B) and (C)
Last Answer : (C) Requires lesser investment for similar capacity
Description : Concentration of NaOH solution produced by mercury electrolytic cell is about __________ percent. (A) 10 (B) 25 (C) 50 (D) 98
Last Answer : (C) 50
Description : Mercury electrolytic cell produces 50-70% NaOH solution. Its operating temperature is __________ °C. (A) 25 (B) 60-70 (C) 150-200 (D) 250-300
Last Answer : (B) 60-70
Description : Cation exchanger is regenerated usually with (A) NaOH (B) H2SO4 (C) Hydrazine (D) Alum solution
Last Answer : (B) H2SO4
Description : What products do we get on electrolysis of saturated brine using steel cathode and graphite anode in an electrolytic cell? (A) Cl2 & Na (B) Cl2 & H2 (C) O2 & H2 (D) Cl2 , H2 & NaOH solution
Last Answer : (D) Cl2 , H2 & NaOH solution
Description : Concentration of NaOH solution produced by diaphragm electrolytic cell is about __________ percent. (A) 10 (B) 25 (C) 50 (D) 98
Last Answer : (A) 10
Description : The electrolytic solution used in a hydrogen-oxygen fuel cell is ____________ a) 75% KOH solution b) 25% KOH solution c) 75% NaOH solution d) 25% NaOH solution
Last Answer : b) 25% KOH solution
Description : Characteristics of Vitamin D and its metabolites include which one of the following? (a) Act to decrease serum levels of calcium (b) Activation of their Vitamin D receptors increases cellular CAMP ... Vitamin D increase renal excretion of calcium (e) Vitamin D deficiency results in Pager's disease
Last Answer : Ans: C
Description : Absorption accompanied by heat evolution results in (A) Increased capacity of the absorber (B) Increase in equilibrium solubility (C) Decrease in equilibrium solubility (D) None of these
Last Answer : (C) Decrease in equilibrium solubility
Description : Pick out the correct statement. (A) Higher hold up of the solid in the rotary dryer results in better exposure of the solids to the gas (B) The 'Hatta number' is ... reflux in case of distillation operation requires infinite number of plates for a binary system separation
Last Answer : (C) For a non-reacting binary mixture of ideal gases, the partial pressure distribution of both components is linear in the case of steady state equimolal counter-diffusion
Description : Absorption (liquid-gas system) with evolution of heat as compared to isothermal absorption results in (A) Decreased solute solubility (B) Large minimum liquid to gas (L/G) ratio (C) Large number of trays (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : Decrease in absorption of which of the following vitamins in the geriatric patient results in pernicious anemia? a) B12 Vitamin B12 requires the intrinsic factor secreted by the gastric mucosa for ... results in an inability to absorb calcium. d) B6 Vitamin B6 affects neuromuscular function.
Last Answer : a) B12 Vitamin B12 requires the intrinsic factor secreted by the gastric mucosa for absorption.
Description : The preferred route of administration of medication in the most acute care situations is which of the following routes? a) Intravenous The IV route is the preferred ... ) Intramuscular Intramuscular administration of medication is absorbed more slowly than intravenously administered medication.
Last Answer : a) Intravenous The IV route is the preferred parenteral route in most acute care situations because it is much more comfortable for the patient, and peak serum levels and pain relief occur more rapidly and reliably.
Description : In organic molecules, fluorescence seldom results from absorption of UV radiation of wavelengths lower than (A) 350 nm (B) 200 nm (C) 300 nm (D) 250 nm
Last Answer : (A) 350 nm
Description : Results in reduction in the power of light wave as it travels down the cable. ∙ A. power loss ∙ B. absorption loss ∙ C. resistive loss ∙ D. heat loss
Last Answer : A. power loss
Description : The individual mass transfer co-efficients (moles/m2s) for absorption of a solute from a gas mixture into a liquid solvent are, KL = 4.5 and KG = 1.5. The slope of the equilibrium line is 3. Which of ... A) Liquid side (B) Gas side (C) Interfacial (D) Both liquid and gas side
Last Answer : (B) Gas side
Description : Pick out the wrong statement (A) Co-current absorbers are usually used, when the gas to be dissolved in the liquid is a pure substance (B) In case of gas absorption, HETP is ... reaction (D) In actual practice, absorption is an endothermic process, while stripping is an exothermic process
Last Answer : (D) In actual practice, absorption is an endothermic process, while stripping is an exothermic process