Description : Sulphur forms the chlorides S2Cl2 and SCl2. The equivalent mass of sulphur in SCl2 is [EAMCET 1985] (A) 8 g/mole (B) 16 g/mole (C) 64.8 g/mole (D) 32 g/mole
Last Answer : (D) 32 g/mole
Description : Which of the following is not a unit of mass transfer co-efficient? (A) Moles transferred/ [(time) (area) (mole fraction)] (B) Moles transferred/ [(time) (area) (mass A/mass B)] (C) Moles transferred/ [(time) (area) (pressure)] (D) None of these
Last Answer : (D) None of these
Description : The combustion of one mole of propane, C3H8, produces how many moles of H2O? (a) 2 (b) 3 (c) 4 (d) 5
Last Answer : 4
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 : FeO (s) + CO (g) = Fe (s) + CO2 (g), k = 0. 435 at 1173E; at equilibrium, what will be the number of moles of CO gas required to reduce one mole of FeO at 1173 K? (A) 1.0 (B) 1.3 (C) 2.3 (D) 3.3
Last Answer : Option D
Description : When a coordination compound CoCl3.6NH3 is mixed with AgNO3, 3 moles of AgCl are precipitated per mole of the compound. Write (i) Structural formula of the complex (ii) IUPAC name of the complex -Chemistry
Last Answer : i) Complex so formed is: CoCl3.6NH3 + AgNO3 → [Co(NH3)6]Cl3 (ii) IUPAC name of complex is: Hexaamminecobalt (III) chloride
Description : When a co-ordination compound CrCl3.6H2O is mixed with AgNO3, 2 moles of AgCl are precipitated per mole of the compound. Write (i) Structural formula of the complex. (ii) IUPAC name of the complex. -Chemistry
Last Answer : (i) The complex formed on mixing a coordination compound CrCl3.6H2O with AgNO3 is as follows CrCl3.6H2O + AgNO3 → [Cr(H2O5)Cl]Cl2. H2O (ii) Pentaaquachloridochromium (III) chloride monohydrate
Description : Moles of solute divided by kilograms of solvent is expression for: w) molarity x) solute-to-solution ratio y) mole percentage z) molality
Last Answer : ANSWER: Z -- MOLALITY
Description : One equivalent of a triprotic acid is the same as: w) one mole of the acid x) one-third mole of the acid y) three moles of the acid z) three equivalents of a diprotic acid
Last Answer : ANSWER: X -- ONE-THIRD MOLE OF THE ACID
Description : In a first order reaction, the time required to reduce the concentration of reactant from 1 mole/litre to 0.5 mole/litre will be __________ that requiredto reduce it from 10 moles/litre to 5 moles/litre in the ... (A) More than (B) Less than (C) Same as (D) Data insufficient; can't be predicted
Last Answer : (C) Same as
Description : The sum of the mass numbers of the atoms in a molecule equals the ______, which is measured in units called _______. a. Atomic Number; Milligrams b. Mass Weight; Micrograms c. Chemical Weight; Moles d. Molecular Weight; Daltons
Last Answer : d. Molecular Weight; Daltons
Description : The gas constant of a certain gas is the ratio of: A. Universal gas constant to molar mass B. Universal gas constant to atomic weight C. Universal gas constant to atomic number D. Universal gas constant to number of moles
Last Answer : Universal gas constant to molar mass
Description : An adult human lung has a volume of 2.9 liters. If its volume decreases to 1.2 liters and it contains 0.049 mole of air after it exhales, how many moles of air does it contain when full A. 0.025 mol B. 0.041 mol C. 0.083 mol D. 0.12 mol E. 0.14 mol?
Last Answer : An adult human lung has a volume of 2.9 liters. If its volume decreases to 1.2 liters and it contains 0.049 mole of air after it exhales, how many moles of air does it contain when full? A. 0.025 mol B. 0.041 mol C. 0.083 mol D. 0.12 mol E. 0.14 mol
Description : In distillation where q is defined as the moles of liquid flow in the stripping section per mole of feed introduced, for saturated liquid feed (A) q > 1 (B) q < 1 (C) q = 1 (D) q = 0
Last Answer : (C) q = 1
Description : Rate constant for a first order reaction does not depend upon reaction time, extent of reaction and the initial concentration of reactants; but it is afunction of reaction temperature. In a chemical reaction, the time required to ... Then the order of this reaction is: (A) 0 (B) 1 (C) 2 (D) 3
Last Answer : (B) 1
Description : For the reversible reaction A ⇌ 2B, if the equilibrium constant K is 0.05 mole/litre; starting from initially 2 moles of A and zero moles of B, how many moles will be formed at equilibrium? (A) 0.253 (B) 0.338 (C) 0.152 (D) 0.637
Last Answer : (B) 0.338
Description : What is the mass of 4.75 moles of arsenic trichloride?
Last Answer : 4,75 moles of arsenic trichloride (AsCl3) is equal to 181,28 g.
Description : 5 moles of `SO_(2)` and 5 moles of `O_(2)` react in a closed vessel. At equilibrium 60% of the `SO_(2)` is consumed . The total number of gaseous mole
Last Answer : 5 moles of `SO_(2)` and 5 moles of `O_(2)` react in a closed vessel. At equilibrium 60% of the `SO_(2)` is consumed ... - A. 5.1 B. 3.9 C. 10.5 D. 8.5
Description : `I_(2)` produced when ozone reacts with moist KI is used to convert `C_(2)H_(5)OH` to `CI_(3)CHO`. Number of moles of ozone required to convert 1 mole
Last Answer : `I_(2)` produced when ozone reacts with moist KI is used to convert `C_(2)H_(5)OH` to `CI_(3)CHO`. Number of ... CI_(3)CHO` is A. 1 B. 2 C. 4 D. 3
Description : How many moles are there in 140 g of Si (atomic mass of silicon is 28)?
Last Answer : 5
Description : Number of moles of `MnO_(4)^(-)` required to oxidise one mole of ferrous oxalate completely in acidic medium will be
Last Answer : Number of moles of `MnO_(4)^(-)` required to oxidise one mole of ferrous oxalate completely in acidic medium ... .2 moles C. 0.6 moles D. 0.4 moles
Description : In the hofmann-bromamide degradation reaction, the number of moles of NaOH and `Br_(2)` used per mole of amine produced are
Last Answer : In the hofmann-bromamide degradation reaction, the number of moles of NaOH and `Br_(2)` used per mole of ... moles of NaOH and one mole of `Br_(2)`
Description : Complete hydrolysis product of 1 mole each of following will need how many total number of moles of NaOH for complete neutralisation? `SOCl_(2), SO_(2
Last Answer : Complete hydrolysis product of 1 mole each of following will need how many total number of moles of NaOH for ... ), PCl_(3), PCl_(5), NCl_(3)`
Description : `NH_(3) + NaOCl overset("golatin or " EDTA^(+))rarr` products The number of moles of `N - H` bonds present in one mole of the strongest nucleophile pr
Last Answer : `NH_(3) + NaOCl overset("golatin or " EDTA^(+))rarr` products The number of moles of ... mole of the strongest nucleophile present in the product is:
Description : The number of moles of `KMnO_(4)` that will be needed to react completely with one mole of ferrous oxalate in acidic solution is:
Last Answer : The number of moles of `KMnO_(4)` that will be needed to react completely with one mole of ferrous oxalate in acidic ... //5` C. `3//5` D. `4//5`
Description : The number of moles of oxalate ions oxidised by one mole of `MnO_(4)^(-)` ion in acidic medium is :
Last Answer : The number of moles of oxalate ions oxidised by one mole of `MnO_(4)^(-)` ion in acidic medium is : A. `5//2` B. `2//5` C. `3//5` D. `5//3`
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 : One mole of acidified `K_(2)Cr_(2)O_(7)` on reaction with excess of KCl will liberate….., moles of `I_(2)`.
Last Answer : One mole of acidified `K_(2)Cr_(2)O_(7)` on reaction with excess of KCl will liberate….., moles of `I_(2)`. A. 6 B. 1 C. 7 D. 3
Description : One mole of complex compound `Co(NH_3)_5Cl_3` gives 3 moles of ions on dissolution in water. One mole of same complex reacts with two moles of `AgNO_3
Last Answer : One mole of complex compound `Co(NH_3)_5Cl_3` gives 3 moles of ions on dissolution in water. One mole of same ... [Co(NH_(3))_(3)Cl_(3)].2NH_(3)`
Description : How many moles of ATP are obtained from oxidation of 1 mole of acetyl CoA in the common metabolic pathway?
Last Answer : Need answer
Description : If 4 moles of gas are added to container that already holds 1 mole of gas the pressure inside the container due to the change in the amount of gas?
Last Answer : 5 moles
Description : If you wanted to make 8.12 mole h2o how many moles of h2 would you need?
Last Answer : Feel Free to Answer
Description : In the reaction M g C I 2 plus 2 KO H - and gt MG OH 2 plus 2 K CI if 1 mole Mg CI 2 is added to 3 moles KO H what is the limiting reagent?
Description : How many moles of water are associated with each mole of methane in methane hydrate?
Last Answer : 5.75 moles of water per mole of methane.
Description : HOW MANY MOLES OF O2 ARE NEEDED TO MAKE 3 MOLE OF WATER?
Last Answer : 3 moles of O, so that must be 6 moles of O2
Description : Under anaerobic conditions the glycolysis one mole of glucose yields __ moles of ATP. (A) One (B) Two (C) Eight (D) Thirty
Last Answer : B
Description : If f = moles of vapour present per mole of feed, then the slope of feed line is (McCabe-Thiele method) (A) (1 - f)/f (B) - (f - 1)/f (C) -1/f (D) -f/(1 - f)
Last Answer : (C) -1/f
Description : What is the unit of the rate constant in a chemical reaction in which 10% of the reactant decomposes in one hour, 20% in two hours, 30% in three hours and so on? (A) Litre/mole.second (B) Moles/litre.second (C) Litre/mole (D) Litre/second
Last Answer : (A) Litre/mole.second
Description : Which of the following is not a unit of reaction rate? (A) Moles for med/(surface of catalyst) (time) (B) Moles formed/volume of reactor) (time) (C) Mole formed/volume of catalyst) (time) (D) None of these
Description : For the irreversible reaction, Ca+ 2C = Ca C2, Δ H°298 = - 60000 J . mole-1. If a system initially containing 2 moles of calcium, 3 moles of carbon and 1 mole of calcium carbide is allowed to react to completion, the heat evolved ... will be (A) 30,000 J (B) 60,000 J (C) 90,000 J (D) 2,40,000 J
Last Answer : (C) 90,000 J
Description : The total sulphur content of the body is (A) 25–50 gm (B) 50–75 gm (C) 100–125 gm (D) 150–200 gm
Last Answer : Answer : D
Description : Two elemets `X(` atomic weight `=75)` and `Y(` atomic weight `=16)` combine to give a compound having `75.8%` X.` The formula of the compound is
Last Answer : Two elemets `X(` atomic weight `=75)` and `Y(` atomic weight `=16)` combine to give a compound having `75.8%` X.` ... C. `X_(2)Y_(2)` D. `X_(2)Y_(3)`
Last Answer : Two elemets `X(` atomic weight `=75)` and `Y(` atomic weight `=16)` combine to give a compound having `75.8%` X. ... B. `xy_(2)` C. xy D. `x_(3)y_(3)`
Description : Which of the following has the minimum atomic mass? A.Oxygen B.Sulphur C.Nitrogen D.Carbon
Last Answer : Answer: D
Description : Atomic mass of Nitrogen is 14 and that of Hydrogen is 1. What will be the molecular mass of Ammonia? (1) 18 (2) 17 (3) 16 (4) 15
Last Answer : (2) 17 Explanation: Ammonia (NH3) is composed of one atom of Nitrogen and three Hydrogen atoms. This means that its molar mass of ammonia will be the sum of the molar mass of one nitrogen atom and three times the molar mass of a hydrogen atom.
Description : Sulphur can form dihalide, tetrahalide and hexahalide with fluorine. One mole of each of these three compounds is mixed with water. The total number o
Last Answer : Sulphur can form dihalide, tetrahalide and hexahalide with fluorine. One mole of each of these three ... is ____. If no reaction occurs, count zero
Description : What is the molecular mass of a gas that effuses through a small hole at twice the rate as oxygen gas at the same temperature. (The molecular mass of O2 is 32.) w) 8.0 atomic mass units x) 16 atomic mass units y) 48 atomic mass units z) 64 atomic mass units
Last Answer : ANSWER: W -- 8.0 ATOMIC MASS UNITS