When a lead storage battery is discharged - (1) SO2 is evolved (2) Lead sulphate is consumed (3) Lead is formed (4) Sulphuric acid is consumed

When a lead storage battery is discharged - (1) SO2 is evolved (2) Lead sulphate is consumed (3) Lead is formed (4) Sulphuric acid is consumed
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(4) Sulphuric acid is consumed Explanation: Lead storage battery was invented by French physicist Gaston Plante in 1859. In the discharged state both the positive and negative plates become lead sulphate and the electrolyte loses much of its dissolved sulphuric acid and becomes primarily water.
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When a lead storage battery is discharged, (1) SO2 is evolved (2) Lead sulphate is consumed (3) Lead is formed (4) Sulphuric acid is consumed

Description : When a lead storage battery is discharged, (1) SO2 is evolved (2) Lead sulphate is consumed (3) Lead is formed (4) Sulphuric acid is consumed 

Last Answer : Sulphuric acid is consumed

Zinc granules on treating with an acid X, form the zinc sulphate (ZnSO4) salt along with the evolution of a gas Y which burns with a pop sound when brought near to a burning candle. Identify the acid X and gas evolved Y (a). X- Sulphuric acid and Y- Oxygen gas (b). X- Hydrochloric acid and Y- Oxygen gas (c). X- Sulphuric acid and Y- Hydrogen gas (d). X- Hydrochloric acid and Y- Hydrogen gas

Description : Zinc granules on treating with an acid X, form the zinc sulphate (ZnSO4) salt along with the evolution of a gas Y which burns with a pop sound when brought near to a burning candle. Identify the acid X and ... (c). X- Sulphuric acid and Y- Hydrogen gas (d). X- Hydrochloric acid and Y- Hydrogen gas

Last Answer : (c). X- Sulphuric acid and Y- Hydrogen gas

Local action in a dry-cell, or lead-acid storage battery is the process whereby ________________. A. hydrogen gas is liberated B. the electrolyte compensates for overcharging C. potassium hydroxide absorbs carbon dioxide from the air D. the battery becomes discharged without being connected to a load

Description : Local action in a dry-cell, or lead-acid storage battery is the process whereby ________________. A. hydrogen gas is liberated B. the electrolyte compensates for overcharging C. potassium hydroxide ... carbon dioxide from the air D. the battery becomes discharged without being connected to a load

Last Answer : Answer: D

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

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).

Which acid is used in Lead storage battery? (1) Sulphuric acid (2) Nitric acid (3) Hydrochloric acid (4) Acetic acid

Description : Which acid is used in Lead storage battery? (1) Sulphuric acid (2) Nitric acid (3) Hydrochloric acid (4) Acetic acid

Last Answer : Sulphuric acid

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

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 : Sulphuric acid

Write the molecular formulae of: 1. Copper oxide 2. Iron (III) chloride 3. Sodium hydroxide 4. Iron (II) sulphide 5. Lead (II) oxide 6. Hydrogen nitrate (nitric acid) 7. Hydrogen sulphate (sulphuric acid) 8. Calcium hydroxide 9. Magnesium carbonate 10.Ammonium carbonate

Description : Write the molecular formulae of: 1. Copper oxide 2. Iron (III) chloride 3. Sodium hydroxide 4. Iron (II) sulphide 5. Lead (II) oxide 6. Hydrogen nitrate (nitric ... Hydrogen sulphate (sulphuric acid) 8. Calcium hydroxide 9. Magnesium carbonate 10.Ammonium carbonate

Last Answer : 1. Copper oxide - CuO 2. Iron (III) chloride - FeCl3 3. Sodium hydroxide - NaOH 4. Iron (II) sulphide - FeS 5. Lead (II) oxide - PbO 6. Hydrogen nitrate (nitric acid) - HNO3 7. ... ) - H2SO4 8. Calcium hydroxide - Ca(OH)2 9. Magnesium carbonate - MgCO3 10.Ammonium carbonate - (NH4)2CO3

Pick out the wrong statement. (A) Conversion of SO2 to SO3 in Monsanto-4 pass converter is about 98% (B) The chemical formula of oleum is H2S2O7 , which is formed by saturating sulphuric acid with sulphur trioxide (C) Vitriol oil is nothing but technical sulphuric acid (D) Decomposition of sulphuric acid on heating does not start before its boiling

Description : Pick out the wrong statement. (A) Conversion of SO2 to SO3 in Monsanto-4 pass converter is about 98% (B) The chemical formula of oleum is H2S2O7 , which is formed by saturating ... but technical sulphuric acid (D) Decomposition of sulphuric acid on heating does not start before its boiling

Last Answer : (D) Decomposition of sulphuric acid on heating does not start before its boiling

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

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

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 will be maximum sulfuric acid minimum water C. The electrolyte will be maximum water 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 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.

Last Answer : Answer: C

A lead-acid battery cell sustaining a short circuit _______. A. will be indicated by lime accumulation on the terminal posts B. will have unusually high cell voltage C. will become excessively heated while being charged D. cannot be completely discharged under load

Description : A lead-acid battery cell sustaining a short circuit _______. A. will be indicated by lime accumulation on the terminal posts B. will have unusually high cell voltage C. will become excessively heated while being charged D. cannot be completely discharged under load

Last Answer : Answer: C

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

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

Which of the problems listed will occur if a lead-acid battery is allowed to remain in a discharged condition for a long period of time? A. The battery may be unable to accept a full charge. B. The electrolyte will change to lead sulfate. C. The concentrated sulfuric acid will attack the lead peroxide plates. D. The separators will harden.

Description : Which of the problems listed will occur if a lead-acid battery is allowed to remain in a discharged condition for a long period of time? A. The battery may be unable to accept a full charge ... . C. The concentrated sulfuric acid will attack the lead peroxide plates. D. The separators will harden.

Last Answer : Answer: A

The freezing point of the electrolyte in a fully charged lead-acid battery will be _____________. A. higher than in a discharged battery B. lower than in a discharged battery C. the same as in a discharged battery D. higher than in a discharged battery, but the specific gravity will be less

Description : The freezing point of the electrolyte in a fully charged lead-acid battery will be _____________. A. higher than in a discharged battery B. lower than in a discharged battery C. the same as in a discharged battery D. higher than in a discharged battery, but the specific gravity will be less

Last Answer : Answer: B

At high discharge rates, nickel-cadmium storage batteries are superior to lead-acid batteries because they __________. A. require fewer cells for the same voltage and less mounting space B. are able to produce higher voltages and do not have to be charged as often C. can be charged and discharged many times without much damage D. have no individual cells to replace at the end of useful life

Description : At high discharge rates, nickel-cadmium storage batteries are superior to lead-acid batteries because they __________. A. require fewer cells for the same voltage and less mounting space B. are able to ... times without much damage D. have no individual cells to replace at the end of useful life

Last Answer : Answer: C

Which acid is used in Lead storage batteiy? (1) Sulphuric acid (2) Nitric acid (3) Hydrochlotic acid (4) Acetic acid

Description : Which acid is used in Lead storage batteiy? (1) Sulphuric acid (2) Nitric acid (3) Hydrochlotic acid (4) Acetic acid

Last Answer : (1) Sulphuric acid Explanation: Lead acid battery is a storage battery or secondary battery in which electrical energy can be stored as chemical energy and this chemical energy is then converted to ... of a Lead-dioxide cathode, a sponge metallic Lead anode and a Sulphuric acid solution electrolyte.

The acid used in lead storage cells is – (1) phosphoric acid (2) hydrochloric acid (3) nitric acid (4) sulphuric acid

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The acid used in lead storage cells is (1) phosphoric acid (2) hydrochloric acid (3) nitric acid (4) sulphuric acid

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Last Answer : sulphuric acid

0.257g of organic substance was heated with conc. sulphuric acid and then distilled with excess of strong alkali .the ammonia gas evolved was absorbed in 50ml of .1M HCl which required 23.2ml of c for neutralization at the end of the process. Determine the % of nitrogen in the compound ?

Description : 0.257g of organic substance was heated with conc. sulphuric acid and then distilled with excess of strong alkali .the ammonia gas evolved was absorbed in 50ml of .1M HCl which required 23.2ml of c for neutralization at the end of the process. Determine the % of nitrogen in the compound ?

Last Answer : A. Vol of 0 .1M HCl taken = 50ml Vol of .1MNaOH used for neutralization of unused acid=23.2ml Now, 23.2 ml of .1MNaOH =23.2ml of .1MHCl Vol of .1MHCl unused=23.2ml Vol of .1MHCl required ... NH3 solution contain nitrogen = 14*26.8/10*1000 Percentage of Nitrogen=14*26.8*100/10*1000*.257 =14.6%

Write balanced chemical equations for the following word equations: (a) Iron + Chlorine → Iron (III) chloride (b) Magnesium + dil sulphuric acid → Magnesium sulphate + water (c) Magnesium + oxygen → Magnesium oxide (d) Calcium oxide + water → Calcium hydroxide (e) Sodium + chlorine → Sodium chloride

Description : Write balanced chemical equations for the following word equations: (a) Iron + Chlorine → Iron (III) chloride (b) Magnesium + dil sulphuric acid → Magnesium sulphate + water (c) Magnesium + oxygen → ... oxide (d) Calcium oxide + water → Calcium hydroxide (e) Sodium + chlorine → Sodium chloride

Last Answer : (a) Iron + Chlorine → Iron (III) chloride 4Fe + 3Cl2 → 2F2Cl3 (b) Magnesium + dil sulphuric acid → Magnesium sulphate + water 2Mg + 2H2SO4 → 2MgSO4 + 2H2 (c) Magnesium + oxygen → Magnesium oxide 2Mg ... hydroxide CaO + H2O → Ca(OH)2 (e) Sodium + chlorine → Sodium chloride 2Na + Cl2 → 2NaCl

The preferred material of construction for storage tanks for 98% sulphuric acid is (A) Aluminium (B) Lead (C) Stainless steel 316 (D) Mild steel

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Last Answer : (B) Lead

Which of the following plants does not emit appreciable amount of SO2 in atmosphere? (A) Thermal power plant (B) Petroleum refinery (C) Nitric acid plant (D) Sulphuric acid plant

Description : Which of the following plants does not emit appreciable amount of SO2 in atmosphere? (A) Thermal power plant (B) Petroleum refinery (C) Nitric acid plant (D) Sulphuric acid plant

Last Answer : (C) Nitric acid plant

__________ plant emits large amount of SO2 as an air pollutant. (A) Nitric acid (B) Sulphuric acid (C) Chlor alkali (D) Iron & steel

Description : __________ plant emits large amount of SO2 as an air pollutant. (A) Nitric acid (B) Sulphuric acid (C) Chlor alkali (D) Iron & steel

Last Answer : (B) Sulphuric acid

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

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

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

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

When conc. H2 SO4 is added to dry KNO3 , brown fumes are evolved. These fumes are due to (1) SO3 (2) SO2 (3) NO2 (4) N2O

Description : When conc. H2 SO4 is added to dry KNO3 , brown fumes are evolved. These fumes are due to (1) SO3 (2) SO2 (3) NO2 (4) N2O

Last Answer : NO2

When concentrated sulphuric acid awas treated with potassium ferrocyanide, CO gas was evolved. By mistake, somebody used dilute sulphuric acid instead

Description : When concentrated sulphuric acid awas treated with potassium ferrocyanide, CO gas was evolved. By mistake, somebody used dilute sulphuric acid instead

Last Answer : When concentrated sulphuric acid awas treated with potassium ferrocyanide, CO gas was evolved. By mistake, somebody used ... C. `N_(2)` D. `CO_(2)`

Cooking liquor in case of sulphite process is (A) Sodium sulphite and sodium bisulphite (B) Magnesium sulphite and free SO2 in acid medium (C) Magnesium sulphate and magnesium bicarbonate (D) None of these

Description : Cooking liquor in case of sulphite process is (A) Sodium sulphite and sodium bisulphite (B) Magnesium sulphite and free SO2 in acid medium (C) Magnesium sulphate and magnesium bicarbonate (D) None of these

Last Answer : (A) Sodium sulphite and sodium bisulphite

Concrete tank can be used to store (A) Alum(B) Ferrous sulphate(C) Sulphuric acid(D) Saturated brine

Description : Concrete tank can be used to store (A) Alum (B) Ferrous sulphate (C) Sulphuric acid (D) Saturated brine

Last Answer : (D) Saturated brine

Fertiliser plant making ammonium sulphate employing gypsum￾ammonia reaction (usual practice is to use ammonia and sulphuric acid) is located in India at (A) Rourkela (under SAIL) (B) Bokaro (under SAIL) (C) Sindri (under FCI) (D) Baroda (under G.S.F.C.)

Description : Fertiliser plant making ammonium sulphate employing gypsum￾ammonia reaction (usual practice is to use ammonia and sulphuric acid) is located in India at (A) Rourkela (under SAIL) (B) Bokaro (under SAIL) (C) Sindri (under FCI) (D) Baroda (under G.S.F.C.)

Last Answer : (C) Sindri (under FCI)

Double Contact Double Absorption (DCDA) process is the most recent process for the manufacture of (A) Nitric acid (B) Sulphuric acid (C) Ammonium sulphate (D) Hydrochloric acid

Description : Double Contact Double Absorption (DCDA) process is the most recent process for the manufacture of (A) Nitric acid (B) Sulphuric acid (C) Ammonium sulphate (D) Hydrochloric acid

Last Answer : (B) Sulphuric acid

Because less coal is consumed in this system, emissions of ______ and particulate and solid waste by products are reduced. a. Sulphur dioxide (SO2) b. Nitrogen oxide (NOx) c. Carbon dioxide (CO2) d. All of the above.

Description : Because less coal is consumed in this system, emissions of ______ and particulate and solid waste by products are reduced. a. Sulphur dioxide (SO2) b. Nitrogen oxide (NOx) c. Carbon dioxide (CO2) d. All of the above.

Last Answer : d. All of the above.

The ratio of the volume of `CO_(2)` evolved to the volume of `O_(2)` consumed in respiration is called.

Description : The ratio of the volume of `CO_(2)` evolved to the volume of `O_(2)` consumed in respiration is called.

Last Answer : The ratio of the volume of `CO_(2)` evolved to the volume of `O_(2)` consumed in respiration is called.

The ratio of the volume of `CO_(2)` evolved to the volume of `O_(2)` consumed in respiration is called.

Description : The ratio of the volume of `CO_(2)` evolved to the volume of `O_(2)` consumed in respiration is called.

Last Answer : The ratio of the volume of `CO_(2)` evolved to the volume of `O_(2)` consumed in respiration is called.

Which of the following statements concerning nickel-cadmium batteries is true? A. When mixing electrolyte always add acid to the water. B. Nickel-cadmium batteries can be charged and discharged only a limited number of times without damage to the cells. C. Nickel-cadmium batteries can be stored for a long time and still keep a full charge without additional charging. D. The electrolyte of an idle nickel-cadmium battery must be replaced monthly to maintain battery condition.

Description : Which of the following statements concerning nickel-cadmium batteries is true? A. When mixing electrolyte always add acid to the water. B. Nickel-cadmium batteries can be charged and ... The electrolyte of an idle nickel-cadmium battery must be replaced monthly to maintain battery condition.

Last Answer : Answer: C

Acid used in an automobile battery? (1) Sulphuric acid (2) Hydrochloric acid (3) Nitric acid (4) Citric acid

Description : Acid used in an automobile battery? (1) Sulphuric acid (2) Hydrochloric acid (3) Nitric acid (4) Citric acid

Last Answer : (1) Sulphuric acid Explanation: Each cell of an automotive battery consists of alternate plates of lead (cathode) and (anode) immersed in an electrolyte of sulfuric acid solution.

Which one of the following acids is used in battery? (1) Hydrochloric acid (2) Hydrofluoric acid (3) Sulphuric acid (4) Sulphurous acid

Description : Which one of the following acids is used in battery? (1) Hydrochloric acid (2) Hydrofluoric acid (3) Sulphuric acid (4) Sulphurous acid

Last Answer : (3) Sulphuric acid Explanation: Battery is a device consisting of one or more electrochemical cells that convert stored chemical energy into electrical energy. Possessing different chemical properties ... domestic acidic drain cleaner, electrolyte in lead-acid batteries and various cleaning agents.

Which one of the following acids is used in battery ? (1) Hydrochloric acid (2) Hydrofluoric acid (3) Sulphuric acid (4) Sulphurous acid

Description : Which one of the following acids is used in battery ? (1) Hydrochloric acid (2) Hydrofluoric acid (3) Sulphuric acid (4) Sulphurous acid

Last Answer : Sulphuric acid

The acid used in lead storage battery is`

Description : The acid used in lead storage battery is`

Last Answer : The acid used in lead storage battery is` A. Nitric acid B. Sulphuric acid C. Hydrochloric acid D. Phosphoric acid

From the standpoint of safety, you should never allow salt water to enter a leadacid storage battery or come in contact with sulfuric acid because ______________. A. the resulting gas is extremely flammable B. the resulting gas is a respiratory irritant that can be fatal C. the primary constituent, sodium, reacts lethally with lead peroxide D. combining salt water with lead-acid creates an invisible gas resulting in severe corrosion

Description : From the standpoint of safety, you should never allow salt water to enter a leadacid storage battery or come in contact with sulfuric acid because ______________. A. the resulting gas is ... peroxide D. combining salt water with lead-acid creates an invisible gas resulting in severe corrosion

Last Answer : Answer: B

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

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

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 only C. a weak solution of sulfuric acid and distilled water D. a strong solution of sulfuric acid and distilled water

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

Last Answer : Answer: A

The plates of a NiCad storage battery are made of ________. A. potassium hydroxide with a small amount of sulfuric acid B. lead and lead peroxide C. silver oxide and lead sulfate D. combinations of nickel powder and nickel & cadmium salts

Description : The plates of a NiCad storage battery are made of ________. A. potassium hydroxide with a small amount of sulfuric acid B. lead and lead peroxide C. silver oxide and lead sulfate D. combinations of nickel powder and nickel & cadmium salts

Last Answer : Answer: D

When troubleshooting a lead-acid storage battery, a weak or dead cell is best detected by _________________. A. measuring and comparing all cells' specific gravity B. taking an open circuit voltage test of individual cells C. visually inspecting the electrolyte levels of each cell D. taking each cell's temperature with a calibrated mercury thermometer

Description : When troubleshooting a lead-acid storage battery, a weak or dead cell is best detected by _________________. A. measuring and comparing all cells' specific gravity B. taking an open circuit ... electrolyte levels of each cell D. taking each cell's temperature with a calibrated mercury thermometer

Last Answer : Answer: A

Which of the processes listed occurs during the charging of a lead-acid storage battery? A. Negative plates change to lead peroxide. B. Positive plates change to lead peroxide. C. Both plates change to lead peroxide. D. Both plates change to lead sulfate.

Description : Which of the processes listed occurs during the charging of a lead-acid storage battery? A. Negative plates change to lead peroxide. B. Positive plates change to lead peroxide. C. Both plates change to lead peroxide. D. Both plates change to lead sulfate.

Last Answer : Answer: B

During discharge of a lead-acid storage battery, which of the following actions occurs? A. The acid becomes stronger. B. Both plates change chemically to ammonium chloride. C. The acid becomes weaker. D. Hydrogen gas is liberated.

Description : During discharge of a lead-acid storage battery, which of the following actions occurs? A. The acid becomes stronger. B. Both plates change chemically to ammonium chloride. C. The acid becomes weaker. D. Hydrogen gas is liberated.

Last Answer : Answer: C

Which of the following activities occurs during the charging process of a lead-acid storage battery? A. The specific gravity of the acid increases. B. Both plates change chemically to lead sulfate. C. The specific gravity of the acid decreases. D. Hydrogen gas is absorbed.

Description : Which of the following activities occurs during the charging process of a lead-acid storage battery? A. The specific gravity of the acid increases. B. Both plates change chemically to lead sulfate. C. The specific gravity of the acid decreases. D. Hydrogen gas is absorbed.

Last Answer : Answer: A

When mixing electrolyte for a lead-acid storage battery, ______________. A. stirring should always be avoided B. a lead container should always be used C. always pour the water into the acid D. always pour the acid into the water

Description : When mixing electrolyte for a lead-acid storage battery, ______________. A. stirring should always be avoided B. a lead container should always be used C. always pour the water into the acid D. always pour the acid into the water

Last Answer : Answer: D