Description : Molecular oxygen is said to be paramagnetic. This indicates that molecular oxygen: w) is a gas at room temperature x) forms molecules containing two oxygen atoms y) has an approximate molecular weight of 32 z) has unpaired electrons
Last Answer : ANSWER: Z -- HAS UNPAIRED ELECTRONS
Description : The alcohol with lowest molecular weight is: w) isopropanol x) propanol y) ethanol z) methanol
Last Answer : ANSWER: Z -- METHANOL
Description : Which one of the following statements about the mass spectrum of CH3Br is correct? a. the last two peaks are of equal size and occur at m/z values of 94 and 96 b. the last two peaks have abundances in the ... m/z value of 95 d. there is just one peak for the molecular ion with an m/z value of 44
Last Answer : a. the last two peaks are of equal size and occur at m/z values of 94 and 96
Description : If two different gases have the same volume, temperature, and pressure and behave like ideal gases, they will also be identical in which one of the following ways? w) average molecular velocity x) total mass y) total molecular kinetic energy z) average momentum per molecule
Last Answer : ANSWER: Y -- TOTAL MOLECULAR KINETIC ENERGY
Description : When radiation breaks an electron pair bond in a molecule and each fragment of the molecule gets one of the bond electrons, the molecular fragments that are formed are called: w) ions x) free radicals y) stable molecules z) gases
Last Answer : ANSWER: X -- FREE RADICALS
Description : The energy of molecular motion in a gas appears in the form of: w) friction x) internal energy y) temperature z) potential energy
Last Answer : ANSWER: Y -- TEMPERATURE
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
Description : To develop the correct mathematical description of the distribution of radiated energy of a blackbody with respect to wavelength for a given temperature, Planck found it necessary to assume that the molecular ... units or quanta y) radiant energy in a continuous form z) none of the above.
Last Answer : ANSWER: X -- RADIANT ENERGY IN DISCRETE UNITS OR QUANTA
Description : Energy stored in a body as thermal or internal energy consists of one of the following. Does it consist of: w) heat in the form of radiant energy x) molecular kinetic energy only y) molecular potential energy only z) both kinetic and potential energy
Last Answer : ANSWER: Z -- BOTH KINETIC AND POTENTIAL ENERGY
Description : According to the kinetic theory, the Kelvin temperature of an ideal gas is proportional to which one of the following. Is the temperature proportional to the gas's average molecular: w) velocity x) momentum y) kinetic energy z) potential energy
Last Answer : ANSWER: Y -- KINETIC ENERGY
Description : Which of the following substances is a molecular solid? w) Glass x) Ice y) Silver z) Table Salt
Last Answer : ANSWER: X -- ICE
Description : What is the molecular geometry of thiocyanate (pron: thie-owe-SIE-a-nate) ion (SCN minus 1)? w) linear x) angular y) tetrahedral z) pyramidal
Last Answer : ANSWER: W -- LINEAR
Description : What is the molecular geometry of the Bromine Tetraflouride ion (B-F-4-minus 1) w) linear x) angular y) tetrahedral z) pyramidal
Last Answer : ANSWER: Y -- TETRAHEDRAL
Description : What is the molecular geometry of XeO2 (Xenon Dioxide)? w) linear x) angular y) tetrahedral z) trigonal planar
Last Answer : ANSWER: X -- ANGULAR
Description : The molecular shape of formaldehyde, H2CO, is: w) linear x) trigonal planar y) bent z) tetrahedral
Last Answer : ANSWER: X -- TRIGONAL PLANAR
Description : What two primary factors determine whether or no molecular collision leads to a chemical reaction? w) energy and volume of molecules x) energy and mass of molecules y) energy and orientation of molecules z) orientation and volume of molecules
Last Answer : ANSWER: Y -- ENERGY AND ORIENTATION OF MOLECULES
Description : Which class of solids could have London Forces the attractive forces between particles in crystal lattice positions? w) ionic x) covalent y) metallic z) molecular
Last Answer : ANSWER: Z -- MOLECULAR
Description : The theory of interionic attraction attributed to Debye and Hückel: w) was disproved by Arrhenius x) accounts quantitatively for the attraction between ions in dilute aqueous solutions y) does not account for kindered "ion-activity" z) accounts for intra-molecular polar bonds
Last Answer : ANSWER: X -- ACCOUNTS QUANTITATIVELY FOR THE ATTRACTION BETWEEN IONS IN DILUTE AQUEOUS SOLUTIONS
Description : The type of crystal lattice exemplified in a diamo is: w) ionic crystal x) covalent network crystal y) metallic crystal z) covalent molecular crystal
Last Answer : ANSWER: X -- COVALENT NETWORK CRYSTAL
Description : Solids may be considered to be either crystalline noncrystalline. The basic difference between them is that a crystal, in contrast to a noncrystal: w) has a sharp melting point x) has an irregular array of atoms y) exhibits double refraction z) has a completely regular atomic or molecular structure
Last Answer : ANSWER: Z -- HAS A COMPLETELY REGULAR ATOMIC OR MOLECULAR STRUCTURE
Description : How do I convert ppb ozone with a molecular weight of 48 to ug/m3 assuming STP?
Last Answer : You lost me at ppb. Sorry
Last Answer : Molecular mass of water 18
Last Answer : molecular mass 18 ****
Description : Assertion :- Equivalent weight of `KMnO_(4)` in acidic medium is `M//5` (M=molecular weight) while in basic medium, it is equal of M/3. Reason :- In a
Last Answer : Assertion :- Equivalent weight of `KMnO_(4)` in acidic medium is `M//5` (M=molecular weight) ... False. D. If both Assertion & Reason are False.
Description : The equivalent weight of `MnSO_(4)` is half its molecular weight when it is converted to
Last Answer : The equivalent weight of `MnSO_(4)` is half its molecular weight when it is converted to A. `Mn_(2)O_(3)` B. ` ... . `MnO_(4)^(-)` D. `MnO_(4)^(-2)`
Description : Molecular weight of `KBrO_(3)` is M. What is its equivalent weight, if the reaction is : `BrO_(3)^(-)rarrBr^(-)" (acidic medium)"`
Last Answer : Molecular weight of `KBrO_(3)` is M. What is its equivalent weight, if the reaction is : `BrO_(3)^(-)rarrBr^(-)" ... )"` A. M B. M/4 C. M/6 D. 6M
Description : 5 L of gas at STP weight 6.25 g . What is the gram molecular weight ?
Last Answer : 5 L of gas at STP weight 6.25 g . What is the gram molecular weight ? A. 1.25 B. 14 C. 28 D. 56
Description : The relation between molarity (M) and molarity (m) is given by : (`rho` = density of solution (g/mL), `M_(1)` = molecular weight of solute) :-
Last Answer : The relation between molarity (M) and molarity (m) is given by : (`rho` = density of solution (g/mL), `M_(1 ... ))` D. `m = (1000M)/(1000rho -MM_(1))`
Description : Identify molecular weight of final product (Y).
Last Answer : Identify molecular weight of final product (Y).
Description : Molecular weight of T will be:
Last Answer : Molecular weight of T will be:
Description : In the ionic equation `2K^(+)BrO_(3)^(-)+12H^(+)+10e^(-)rarrBr_(2)+6H_(2)O+2K^(+)`, the equivalent weight of `KBrO_(3)` will be : (where M = molecular
Last Answer : In the ionic equation `2K^(+)BrO_(3)^(-)+12H^(+)+10e^(-)rarrBr_(2)+6H_(2)O+2K^(+)`, the equivalent weight of ` ... )`) A. M/5 B. M/2 C. M/6 D. M/4
Description : A mixture of CuS (molecular weight = `M_(1)`) and `Cu_(2)S` (molecular weight `=M_(2)`) is oxidised by `KMnO_(4)` (molecular weight `=M_(3)`) in acidi
Last Answer : A mixture of CuS (molecular weight = `M_(1)`) and `Cu_(2)S` (molecular weight `=M_(2)`) is ... of CuS, `Cu_(2)S` and `KMnO_(4)` respectively.
Description : A sample of radioactive material has mass `m`, decay constant `lambda`, and molecular weight `M`. Avogadro constant `=N_(A)`. The initial activity of
Last Answer : A sample of radioactive material has mass `m`, decay constant `lambda`, and molecular weight `M`. Avogadro constant ... N_(4))/(M)` D. `mMe^(lambda)`
Description : If the boiling point of ethanol (molecular weight `= 46`) is `78^@ C`, the boiling point of dimethyl ether (molecular weight `= 46`) is
Last Answer : If the boiling point of ethanol (molecular weight `= 46`) is `78^@ C`, the boiling point of dimethyl ether (molecular ... ` C. `86^(@)C` D. `34^(@)C`
Description : Asserion (A): The boiling point of `C_(2)H_(5)OH` is less than that of `H_(2)O` though the molecular weight of `C_(2)H_(5)OH` is more than that of wat
Last Answer : Asserion (A): The boiling point of `C_(2)H_(5)OH` is less than that of `H_(2)O` though the molecular ... but R is false D. A is false but R is true
Description : Asseration: The thermal stability of hydrides of oxygen family decrease with molecular weight. Reason: The decomposition of `M-H` bond requires lesser
Last Answer : Asseration: The thermal stability of hydrides of oxygen family decrease with molecular weight. Reason: The decomposition ... in `O-H` than `S-H`.
Description : Why is ethanol boiling at a higher boiling point than methyl ether boils at a lower boiling point despite the fact that they have the same molecular weight?
Last Answer : Need answer
Description : What the molecular weight of CuSO45H2O?
Last Answer : The molecular weight of CuSO4.5H2O is 249,685.
Description : Molecular weight of heterogenous nuclear RNA (hnRNA) is (A) More than 107 (B) 105 to 106 (C) 104 to 105 (D) Less than 104
Last Answer : Answer : A
Description : __________ hormone is a single chain polypeptide having 32 amino acids with molecular weight of 3,600. (A) Testosteron (B) Thyroxine (C) Calcitonine (D) Vasopressin
Last Answer : Answer : C
Description : Molecular weight of transferrin is about (A) 40,000 (B) 60,000 (C) 80,000 (D) 1,00,000
Description : The immunoglobulin having highest molecular weight is (A) Ig G (B) Ig M (C) Ig E (D) Ig A MINERAL METABOLISM 187
Last Answer : Answer : B
Description : The immunoglobulins are differentiated and also named on the basis of (A) Electrophoretic mobility (B) Heat stability (C) Molecular weight (D) Sedimentaiton coefficient like 7 S, 19 S etc.
Last Answer : Answer : D
Description : Velocity maximum for an enzyme at half the substrate concentration gives (A) The molecular weight of the enzyme (B) Km value (C) Isoelectric pH (D) Pk value
Description : If the fatty acid is esterified with an alcohol of high molecular weight instead of glycerol, the resulting compound is (A) Lipositol (B) Plasmalogen (C) Wax (D) Cephalin
Description : The antibodies raised against a pure protein will show only one sharp spike on this technique: (A) Solubility curve (B) Solvent precipitation (C) Molecular weight determination (D) Immuno electrophoresis
Description : The purity of an isolated protein can be tested by employing various methods. (A) Solubility curve (B) Molecular weight (C) Ultra Centrifugation (D) Immuno Ractivity (E) All of these
Description : Immunoglobulins are characterized by their (A) Heavy chains (B) Molecular weight (C) Light chains (D) Electrophoretic behaviour
Description : The molecular weight of heavy chains is (A) 20,000–25,000 (B) 25,000–50,000 (C) 50,000–70,000 (D) 70,000–1,00,000