Description : During electrolysis, the cations and anions of the electrolyte are 1. Discharged 2. Hydrolysed 3. In motion 4. Hydrated The correct answers are: (a) 1 and 3 (b) 2 and 4 (c) 3 and 4 (d) 1 and 2
Last Answer : Ans:(a)
Description : Which of the following acids serves as an electrolyte in a lead storage battery? (1) Sulphuric acid (2) Lactic acid (3) Hydrochloric acid (4) Nitric acid
Last Answer : (1) Sulphuric acid Explanation: Dilute sulfuric acid (H2SO4) serves as the electrolyte in a lead-acid battery. Dilute sulfuric acid used for lead acid battery has ratio (to water) of 3:1 other components of the battery include: Lead peroxide (PbO2) and Sponge lead (Pb).
Last Answer : Sulphuric acid
Description : A breakable, mercury-filled thermometer should not be used in a lead-acid battery to measure electrolyte temperature, as an accidental breakage can cause ____________. A. severe sparking and explosions ... battery plates C. violent gassing at the positive plates D. corrosion on the battery terminals
Last Answer : Answer: A
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 : 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 : A mixture of potassium chlorate, oxalic acid and sulphuric acid is heated. During the reaction which element undergoes maximum change in the oxidation number? (1) C (2) S (3) H (4) Cl
Last Answer : Cl
Description : Propylene is subjected to hydroboration oxidation reaction. The product formed would be
Last Answer : Propylene is subjected to hydroboration oxidation reaction. The product formed would be A. Propanal B. 1-Propanol C. 2-Propanol D. Propanone
Description : Hydrolysis of ester in catalysed by acid. Rate of hydrolysis of ester were obtained initially and after some ester has been hydrolysed as `R_(0)` and
Last Answer : Hydrolysis of ester in catalysed by acid. Rate of hydrolysis of ester were obtained initially and after some ... 0) gt R_(t)` D. Cannot be determined
Description : Which of the following statements about nucleic acid is most correct? (A) Both pentose nucleic acid and deoxypentose nucleic acid contain the same pyrimidines (B) Both pentose nucleic acid and deoxypentose ... (C) RNA contains cytosine and thymine (D) DNA and RNA are hydrolysed by weak alkali
Last Answer : Answer : B
Description : If violent gassing occurs when a lead-acid storage battery is first placed on charge, the _____________. A. battery must be given an emergency charge B. charging rate is too low C. charging rate is too high D. specific gravity of the electrolyte solution is too low
Last Answer : Answer: C
Description : When the electrolyte level of a lead-acid storage battery has decreased due to normal evaporation, the level should be reestablished by adding _____________. A. distilled water only B. sulfuric acid ... of sulfuric acid and distilled water D. a strong solution of sulfuric acid and distilled water
Description : When mixing electrolyte, which of the following precautions should always be observed? A. Add the acid to the water. B. Use a heavy duty aluminum pail. C. Add the water to the acid. D. Mix the solution outdoors.
Description : The specific gravity of the electrolyte solution in a lead acid battery _____________. A. is not effected during charging B. remains the same during discharge C. would read close to 1.830 when discharged D. gives an indication of the state of charge of the battery
Last Answer : Answer: D
Description : Mercury filled thermometers should never be used to determine the temperature of the battery electrolyte because accidental breakage of the thermometer can cause __________________. A. severe sparking and ... of battery plates C. contamination of the electrolyte D. corrosion on the battery terminals
Description : Platinum and silver are corroded by (A) Caustic soda solution (B) Phosphoric acid (C) Sulphuric acid (10%) (D) None of these
Last Answer : (D) None of these
Description : Nickel made/clad equipments are suitable for handling (A) Ammonia (both aqueous & anhydrous) (B) Fruit juices, milk & its products and caustic soda solution (C) Nitric acid & hydrochloric acid (concentrated) (D) Sulphuric acid (concentrated)
Last Answer : (B) Fruit juices, milk & its products and caustic soda solution
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 : Pick out the correct statement. (A) Chemical oxygen demand (COD) is a measure of chemically oxidisable organic matter present in water (B) COD is determined by oxidising the organic matter present in water with potassium dichromate ... of potable water may be 1-2 mg/litre (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : Sulphuric acid solution having a specific gravity of 1.20 at room temperature is used mainly for the (A) Fertiliser manufacture (B) Car battery solution (C) Synthesis of oleum (D) Water treatment
Last Answer : (B) Car battery solution
Description : Which among the following stage is suitable indicator when solution of sodium carbonate is mixed with sulphuric acid ? (1) Methylene blue (2) Methyl red (3) Phenolphthaline (4) Methyl orange
Last Answer : Methyl orange
Description : When m-chlorobenzaldehyde is treated with `50% KOH` solution, the product (s) obtained is (are)
Last Answer : When m-chlorobenzaldehyde is treated with `50% KOH` solution, the product (s) obtained is (are) A. B. C. D.
Description : Vinegar is a (a) 5% solution of acetic acid in water (b) 25% solution of acetic acid in water (c) 50% solution of acetic acid in water (d) 40% solution of formic acid in water
Last Answer : 5% solution of acetic acid in water
Description : The most easily hydrolysed molecule under `S_(N^(1))` condition is:
Last Answer : The most easily hydrolysed molecule under `S_(N^(1))` condition is: A. allyl chloride B. benzyl chloride C. ethyl chloride D. isopropyl chloride
Description : Which one of the following halogen compounds is difficult to be hydrolysed by `S_(N^(1))` mechanism?
Last Answer : Which one of the following halogen compounds is difficult to be hydrolysed by `S_(N^(1)) ... B. Isopropyl chloride C. Benzyl chloride D. Chlorobenzene
Description : Which of the following alkyl halides is hydrolysed by `S_(N^(1))` mechanism?
Last Answer : Which of the following alkyl halides is hydrolysed by `S_(N^(1))` mechanism? A. `CH_(3)Cl` B. `CH_(3)CH_(2)Cl` ... (2)CH_(2)Cl` D. `(CH_(3))_(3)"CCl"`
Description : Which is/are hydrolysed by water ?
Last Answer : Which is/are hydrolysed by water ? A. `XeF_(2)` B. `XeF_(4)` C. `XeF_(6)` D. `XeOF_(4)`
Description : Which one of the following is/are cannot be hydrolysed?
Last Answer : Which one of the following is/are cannot be hydrolysed? A. `TeF_(6)` B. `SF_(6)` C. `NCl_(3)` D. `NF_(3)`
Description : Assertion:- `SF_(6)` cannot be hydrolysed but `SF_(4)` can be. Reason:- Six F atoms in `SF_(6)` prevent the attack of `H_(2)O` on sulphur atom of `SF_
Last Answer : Assertion:- `SF_(6)` cannot be hydrolysed but `SF_(4)` can be. Reason:- Six F atoms in ` ... D. Statement-I is not correct and Statement-II is correct
Description : Which of the following is most easily hydrolysed?
Last Answer : Which of the following is most easily hydrolysed? A. `SF_(6)` B. `NF_(3)` C. `CCl_(4)` D. `TeF_(6)`
Description : Current concepts concerning the intestinal absorption of triacylglycerols are that (A) They must be completely hydrolysed before the constituent fatty acids can be absorbed (B) They are hydrolysed partially ... portal blood (D) In the absence of bile the hydrolysis of triacyl glycerols is absorbed
Description : The bond in proteins that is not hydrolysed under usual conditions of denaturation: (A) Hydrophobic bond (B) Hydrogen bond (C) Disulphide bond (D) Peptide bonds
Last Answer : Answer : C
Description : When RNA in hydrolysed there is no relationship among the quantities of four bases obtained like DNA. What does this fact indicate about structure of RNA ?
Last Answer : Ans. This indicate that RNA has a single strand structure.
Description : Triglycerides present in adipose tissue are hydrolysed by what enzyme?
Last Answer : Hormone sensitive lipase.
Description : Triglycerides present in chylomicrons are hydrolysed by what?
Last Answer : Lipoprotein lipase.
Description : Which one of the following statements is true regarding digestion and absorption of food in humans? (a) Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions ... amylase in our mouth. (d) Oxyntic cells in our stomach secrete the proenzyme pepsinogen.
Last Answer : (a) Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions like Na
Description : If for some reason the parietal cells of the gut epithelium become partially non-functional, what is likely to happen? (a) The pancreatic enzymes and specially the trypsin and lipase will ... more effective. (d) Proteins will not be adequately hydrolysed by pepsin into proteoses and peptones.
Last Answer : (d) Proteins will not be adequately hydrolysed by pepsin into proteoses and peptones.
Description : Poisons like cyanide inhibit Na+ efflux and K+ influx during cellular transport. This inhibitory effect is reversed by an injection of ATP. This demonstrates that (a) ATP is the carrier protein in the ... is hydrolysed by ATPase to release energy (d) Na+-K+ exchange pump operates in the cell.
Last Answer : (b) energy for Na+-K+ exchange pump comes from ATP
Description : Which of the following is an electrolyte solution?
Last Answer : The answer is "Ions in water" on Apex
Description : 1.0 molal aqueous solution of an electrolyte `"A"_(2)"B"_(3)` is 60% ionised. The boiling point of the solution at 1 atm is `("K"_("b"("H"_(2)"O"))=0.
Last Answer : 1.0 molal aqueous solution of an electrolyte `"A"_(2)"B"_(3)` is 60% ionised. The boiling point of the solution at ... C. `376. 4 K` D. ` 374 . 76 K`
Description : Is sugar solution is electrolyte or not?
Last Answer : Sugar solution is not an electrolyte.
Description : When you check the specific gravity of the battery electrolyte with a hydrometer, it should be kept in mind that ____________. A. the battery is fully charged when the indicator floats low in ... taken immediately after water is added to the cell D. temperature has no effect on hydrometer readings
Description : Which of the following solutions should the nurse anticipate for fluid replacement in the male patient? a) Lactated Ringer's solution Replacement fluids may include isotonic electrolyte solutions and ... only to treat severe symptomatic hyponatremia and should be used only in intensive care units.
Last Answer : a) Lactated Ringer’s solution Replacement fluids may include isotonic electrolyte solutions and blood component therapy.
Description : The electrolyte composition of standard WHO oral rehydration solution is based upon that of: A. Enterotoxigenic E. coli diarrhoea stools B. Cholera stools in adults C. Cholera stools in children D. Rotavirus diarrhoea stools
Last Answer : C. Cholera stools in children
Description : Relative lowering of vapour pressure is a colligative property because_____________. (a)It depends on the concentration of a non electrolyte solute in solution and does not depend on the nature of ... of an electrolyte or nonelectrolyte solutein solution as well as on the nature of solute molecules.
Last Answer : (a)It depends on the concentration of a non electrolyte solute in solution and does not depend on the nature of the solute molecules.
Description : Which of the following is a strong electrolyte in aqueous solution. w) ammonia x) coffee y) Gatorade z) corn syrup
Last Answer : ANSWER: Y -- GATORADE
Description : Maintenance of alkaline batteries should include _________. A. checking the electrolyte weekly using a hydrometer B. replacing the electrolyte every 5 years C. top off with sulfuric acid as needed D. making certain connections are tight and clean
Description : If the illustrated device is fully discharged, what will be the result? EL-0061 A. The battery will be short circuited because the mud space will be filled with lead sulfate B. The electrolyte ... minimum sulfuric acid. D. The plates will be maximum lead oxide and sponge lead minimum lead sulfate.
Description : If the illustrated device is fully discharged, what will be the result? EL-0061 A. The plates will be maximum lead sulfate minimum sponge lead and lead oxide, the electrolyte will be ... lead oxide and sponge lead minimum lead sulfate, the electrolyte will be maximum water minimum sulfuric acid
Description : Which of the following conditions indicates that a lead-acid battery is being charged too rapidly? A. Sparks occurring at the positive terminal. B. Unusually high electrolyte specific gravity. C. Low plate potentials being developed. D. Excessively high temperatures and gassing rates.