1.60 g of a metal A and 0.96 g of a metal B when treated with excess of dilute acid, separately, produced the same amount of hydrogen. Calculate the e

1 Answer

Answer :

1.60 g of a metal A and 0.96 g of a metal B when treated with excess of dilute acid, separately, ... weight of A if the equivalent weight of B is 12.

Related questions

Description : Componds `(A)` and `B` are treated with dilute `HCl` separately. The gases liberated are `Y` and `Z` respectively. `Y` turns acidified `K_2 Cr_2 O_7`

Last Answer : Componds `(A)` and `B` are treated with dilute `HCl` separately. The gases liberated are `Y` and `Z` ... )SO_(4)` D. `NaC1 and Na_(2)CO_(3)`

Description : A sample of natural gas containing 80% methane (CH4 ) and rest nitrogen (N2 ) is burnt with 20% excess air. With 80% of the combustibles producing CO2 and the remainder going to CO, the Orsat analysis in volume percent is (A) CO2 : 6 ... 96, N2 :72.06 (D) CO2 : 7.60, CO : 1.90, O2 : 4.75, N2 : 85.74

Last Answer : (B) CO2 : 7.42, CO : 1.86, O2 : 4.64, N2 :86.02

Description : Which gas is always produced if a metal reacts with water or dilute acid?

Last Answer : Hydrogen

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)`

Description : Oxygen and hydrogen gases are produced at the anode and cathod erespectively during electrolysis of dilute aq. Solution of

Last Answer : Oxygen and hydrogen gases are produced at the anode and cathod erespectively during electrolysis of dilute aq. Solution ... (3)` C. HCl D. `CuSO_(4)`

Description : Which out of carbon dioxide zinc chloride water and hydrogen is not produced from zinc carbonate and dilute hydrochloric?

Last Answer : This is hydrogen.

Description : Can anyone help me with this? Chlorine and carbon monoxide gases are mixed in a 1.00L container and the following equilibrium is established: CO(g) + Cl2(g) COCl2(g).. Initially 1.5 mol of ... monoxide. At equilibrium, 0.8 mol of COCl2(g) was found. How do you calculate the percent reaction?

Last Answer : For a start, your equation isn't balanced; it should be Cl2 (Cl2, not 2Cl, because of HONClBrIF). Given this, if we assume the reaction goes to completion, 1.5 mol Cl2 will produce 1.5 mol ... .3% Incidentally, is that supposed to be CO or Co? It has no effect on the calculation, just curious.

Description : Pick up the correct statement from the following: A. Hydrogen sulphide gas in excess, may cause corrosion of concrete sewers B. 4 ppm of Dissolved Oxygen (D.O.) is ensured before discharging the treated ... river C. Solubility of oxygen in sewage is 95% of that of distilled water D. All the above

Last Answer : ANS: D

Description : . A dilute aqueous solution is to be concentrated in an evaporator system. High pressure steam is available. Multiple effect evaporator system is employed, because (A) Total heat transfer area of ... in a single effect is much lower than that in any effect in a multi-effect system

Last Answer : (B) Total amount of vapor produced per Kg of feed steam in a multiple effect system is much higher than in a single effect

Description : Mark the correct option a) In case death of the one depositor of joint account holder , in the MIS account the account will be treated as single from the date of death of the account holder b ... amount is not withdrawn, the excess amount will carry the normal saving bank interest d) All the above

Last Answer : d) All the above

Description : 10 g of hydrogen and 64 g of oxygen were filled in a steed vessel and exploded. Amount of water produced in this reaction will be :-

Last Answer : 10 g of hydrogen and 64 g of oxygen were filled in a steed vessel and exploded. Amount of water produced in ... mole B. 3 mole C. 4 mole D. 1 mole

Description : `Na_(2)CO_(3),NaCl, NaNO_(2),Na_(2)SO_(3),NaBr,CH_(3)CO O Na` are separately treated with `AgNO_(3)` solution. In how many cases white precipitate is/

Last Answer : `Na_(2)CO_(3),NaCl, NaNO_(2),Na_(2)SO_(3),NaBr,CH_(3)CO O Na` are separately ... solution. In how many cases white precipitate is/are obtained.

Description : Acetamide is treated separately with the following reagens. Which one of these given methylamine?

Last Answer : Acetamide is treated separately with the following reagens. Which one of these given methylamine? A. `PCI_(5)` ... ` D. Hot concentrated `H_(2)SO_(4)`

Description : Beryllium oxide is treated separately with aqueous HCl and aqueous NaOH solutions.

Last Answer : Write balanced chemical equations : Beryllium oxide is treated separately with aqueous HCl and aqueous NaOH solutions.

Description : What mass of sodium chloride is produced if 92.0 g of sodium reacts with excess chlorine?

Last Answer : Sodium has an atomic weight of 22.99 g/mol. Chlorine has an atomic weight of 35.45 g/mol. NaCl has an atomic weight of 58.44 g/mol. Therefore 92g of sodium would yield 233.86g of sodium chloride (NaCl).

Description : ________ does not react with dilute hydrochloric acid but reacts with sulphuric acid and does not liberate hydrogen gas. a) iron b)copper c)gold d)zinc

Last Answer : b)copper

Description : 0.98 g of the metal sulphate was dissolved in water and excess of barium chloride was added. The precipitated barium sulphate weighted 0.95 g. Calcula

Last Answer : 0.98 g of the metal sulphate was dissolved in water and excess of barium chloride was added. ... 95 g. Calculate the equivalent weight of the metal.

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 : An organic compound contain 69% carbon and 4.8% hydrogen, the remaining being oxygen. Calculate the masses of carbon dioxide and water produced when 0.20g of this substance is subjected to complete combustion.

Last Answer : Calculation of mass of CO2 produced: Mass of compound =0.20g %C =12 x C 69=12*mass of CO2 formed*100/44*0.2 Mass of CO2 formed =69*44*.2/12*100 = 0.506g Similarly, % H =2* mass of H2Oformed*100/18* ... compound 4.8=2* mass of H2Oformed*100/18* 0.2 Mass of H2Oformed =4.8*18*0.2/2*100 =0.0864g

Description : Compound `A,C_(7)H_(8)O`, is insoluble in water, dilute `HCl`, and aquenous `NaHCO_(3)`, it dissolves in dilute `NaOH`. When `A` is treated with bromi

Last Answer : Compound `A,C_(7)H_(8)O`, is insoluble in water, dilute `HCl`, and aquenous `NaHCO_(3)`, it ... . o-cresol B. m-cresol C. p-cresol D. anisole

Description : When black copper oxide placed in a beaker is treated with dilute HCl, its colour changes to......... a) Whiteb) Red c) Blue-green d) No change

Last Answer : c) Blue-green

Description : Phosphoric acid is produced in wet process from phosphate rock and (A) Dilute H2SO4 (B) Concentrated H2SO4 (C) Concentrated NHO3 (D) Concentrated HCl

Last Answer : (A) Dilute H2SO4

Description : The product obtained when 4-hydroxybenzene sulphonic acid is treated with an excess of bromine water is

Last Answer : The product obtained when 4-hydroxybenzene sulphonic acid is treated with an excess of bromine water ... sulphonic acid D. 2,4,6-tribromophenol

Description : What happen when a solution of potassium chromate is treated with an excess of dil. Nitic acid?

Last Answer : What happen when a solution of potassium chromate is treated with an excess of dil. Nitic acid? A. `Cr^( ... CrO_4^(2-)` is oxidized to +7 state of Cr

Description : What happen when a solution of potassium chromate is treated with an excess of dil. Nitic acid?

Last Answer : What happen when a solution of potassium chromate is treated with an excess of dil. Nitic acid? A. Cr reduces ... (2-)` and `H_(2)O` will be formed.

Description : Hydrogen peroxide solution `(20 mL)` reacts quantitatively with a solution of `KMnO_(4) (20 mL)` acidified with dilute of `H_(2)SO_(4)`. The same volu

Last Answer : Hydrogen peroxide solution `(20 mL)` reacts quantitatively with a solution of `KMnO_(4) (20 mL)` ... calculate the molarity of `H_(2)O_(2)`.

Description : Oxygen content in a flue gas was found to be 4%. It implies that excess air used for combustion was around __________ percent. (A) 4 (B) 96 (C) 20 (D) 40

Last Answer : (C) 20

Description : 10.(a) An ore on treatment with dilute hydrochloric acid produces brisk effervesces. What type of ore is this? What steps will be required to obtain metal from the enriched ore. , (b) ... in coin and colour of the solution ? Write balanced chemical equation of the reaction involved. -Chemistry

Last Answer : (a) Carbonate ore: (i) Calcination: Carbonate ore is heated in limited supply of air and oxide is obtained, e.g. (b) Copper, being more reactive than silver will displace silver from silver nitrate ... and there will be deposition of silver on copper coin. The colour of solution will turn to blue.

Description : A metal salt solution gives a yellow precipitate with silver nitrate. The precipitate dissolves in dilute nitric acid as well as in ammonium hydroxide

Last Answer : A metal salt solution gives a yellow precipitate with silver nitrate. The precipitate dissolves in dilute nitric acid as ... (3-)` D. `SO_(4)^(2-)`

Description : A compound, C15H24, is reacted with excess hydrogen using a metal catalyst. One equivalent of the compound consumed three equivalents of hydrogen. How many rings did the original compound have? (a) 1 only (b) 2 only (c) 3 only (d) None of these

Last Answer : 1 only

Description : When ethanol is treated with sodium metal : (a) Sodium ethoxide is formed (b) The sodium is oxidized (c) The acidic hydrogen in reduced (d) All these occu

Last Answer : All these occu

Description : Jenny bought 6 CDs that were each the same price. Including sales tax, she paid a total of $ 96.60 . Each CD had a tax of $ 1.20. What was the price of each CD before tax?

Last Answer : Each CD was $14.90

Description : A liquid/gaseous fuel containing hydrocarbons and high amount of sulphur is burnt with 40% excess air. The flue gas still contains large amount of carbon monoxide. This may be due to the (A) Presence of large ... fuel (C) High sulphur content in the fuel (D) Lack of thorough mixing of fuel with air

Last Answer : (D) Lack of thorough mixing of fuel with air

Description : An investor invested a sum of Rs. 12 lakhs in Company P in 1998. The total amount received after one year was re-invested in the same Company for one more year. The total appreciation received by the investor on his investment ... 2, 42,200 C. Rs. 2, 25,600 D. Rs. 2, 16,000 E. None of these

Last Answer : C. Rs. 2, 25,600

Description : Two samples of lead oxide were separately reduced to metallic lead by heating in a current of hydrogen. The weight of lead from one oxide was half the weight of lead obtained from the other oxide. ... (B) Law of constant proportions (C) Law of multiple proportions (D) Law of equivalent proportions

Last Answer : (C) Law of multiple proportions

Description : The ‘Green House effect' is produced due to the presence of excess amount of – (1) Sulphur dioxide (2) Nitrogen dioxide (3) Carbon monoxide (4) Methane

Last Answer : (4) Methane Explanation: By their percentage contribution to the greenhouse effect on Earth the four major gases are: Water vapour (36-70%), Carbon dioxide (9-26%), Methane (4-9%) and Ozone (3- 7%).

Description : Short/intense flame is produced during combustion of gaseous fuel by using (A) High amount/current of combustion air (B) Low amount/current of combustion air (C) Preheated secondary air (D) Very little excess air

Last Answer : (A) High amount/current of combustion air

Description : The ‘Green House effect’ is produced due to the presence of excess amount of (1) Sulphur dioxide (2) Nitrogen dioxide (3) Carbon monoxide (4) Methane

Last Answer : Methane

Description : Opening WDV off the block of assets was Rs 15 lakh. During the year, asset was acquired under this block on 15 June 2017 amounting to rupees 10 lakh. One of the assets falling within the block was sold for rupees 5.5 ... . rupees 1.95 lakh f. rupees 2.5 lakh g. rupees 2.25 lakh h. Rs 1.45 lakh

Last Answer : e. rupees 1.95 lakh

Description : Why is this happening to me ? I carefully answered each question separately from the previous answer. Even then why my 50-60 points were deducted ? It would be nice if someone could explain the reasons for cutting points.

Last Answer : answer:

Description : Name some metals which do not displace hydrogen from dilute acids.

Last Answer : Platinum, gold, silver, mercury & copper do not displace hydrogen from dilute acids.

Description : Sodium displaces hydrogen from dilute acids violently but copper does not displace hydrogen from dilute acids. Why?

Last Answer : Sodium is highly reactive than copper. Hence reaction with sodium reacts violently then that of copper.

Description : When caring for a patient with an uncomplicated, mild urinary tract infection (UTI), the nurse knows that recent studies have shown which of the following drugs to be a good choice for ... to be significantly more effective than TMP-SMX in community-based patients and in nursing home residents.

Last Answer : a) Levofloxacin (Levaquin) Levofloxacin, a floroquinolone, is a good choice for short-course therapy of uncomplicated, mild to moderate UTI. Clinical trial data show high patient compliance with the 3-day regimen (95.6%) and a high eradication rate for all pathogens (96.4%).

Description : If the total amount of a drug present in the body at a given moment is 2.0 g and its plasma concentration is 25 μg/ml, its volume of distribution is: A. 100 L B. 80 L C. 60 L D. 50 L

Last Answer : B. 80 L

Description : 2 If the total amount of a drug present in the body at a given moment is 2.0 g and its plasma concentration is 25 μg/ml, its volume of distribution is: A. 100 L B. 80 L C. 60 L D. 50 L

Last Answer : B. 80 L

Description : If the total amount of a drug present in the body at a given moment is 2.0 g and its plasma concentration is 25 μ g/ml, its volume of distribution is: A. 100 L B. 80 L C. 60 L D. 50 L

Last Answer : B. 80 L

Description : The percentage of P2O5 in diammonium hydrogen phosphate (NH4)2HPO4 is [CPMT 1992] (A) 23.48 (B) 46.96 (C) 53.78 (D) 71.00

Last Answer : (C) 53.78

Description : If the temperature is increased the amount of SO3(g) produced will: A increase. B decrease. C remain the same.

Last Answer : B decrease.

Description : Saturated steam at 1 atm is discharged from a turbine at 1200 kg/h. Superheated steam at 300 0C  and 1 atm is needed as a feed to a heat exchanger. To produce it, the turbine discharge ... amount of superheated steam at 300 0C produced and the volumetric flow rate of the  400 0C steam.

Last Answer : Solution 1. Mass balance of water 1200 + m1 = m2 ………………………………………… (1) …………………….1 mark 2. Energy balance (1200 kg/h)(2676 kJ/kg) + m1(3278 kJ/kg)