Given van der Waals constant for NH3, H2 and CO2 are respectively 4.17, 0.244, 1.36 and 3.59, which one of the following gases is most easily liquefied?
(1) NH3
(2) H2
(3) O2
(4) CO2
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Calculate the molecular masses of H2, O2, Cl2, CO2, CH4, C2H6, C2H4, NH3, CH3OH.
Molecular mass of H2 = 2 × Atomic mass of H = 2 × 1 = 2u Molecular mass of O2 = 2 × Atomic mass of O = 2 × 16 =...
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Write the IUPAC names of the following coordination compounds: (i) [Co(NH3)6]Cl3 (ii) [Co(NH3)5Cl]Cl2
(i) Hexaamminecobalt(III) chloride (ii) Pentaamminechloridocobalt(III) chloride (iii) Potassium hexacyanoferrate(III) (iv) Potassium trioxalatoferrate(III) (v) Potassium tetrachloridopalladate(II) (vi) Diamminechlorido(methylamine)platinum(II) chloride
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If CP and CV denote the specific heats of nitrogen per unit mass at constant pressure and constant volume respectively, then?
(b) : Molar heat capacity = Molar mass × specific heat capacity So, the molar heat capacities at constant pressure and constant volume will be 28CP and 28CV respectively Therefore, 28CP –...
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In van der Waals equation of state of the gas law, the constant b is a measure of (a) intermolecular repulsions.
(c) : van der Waals constant for volume correction b is the measure of the effective volume occupied by the gas molecules.
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The bond energies of F_2 , Cl_2, Br_2 and I_2 are 155, 244, 193 and 151 kJ mol^–1 respectively
(d) The lesser the bond energy, the weaker is the bond
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Let Cv and Cp denote the molar heat capacities of an ideal gas at constant volume and constant pressure respectively.
The correct answer is (c) Cp - Cv
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Although both CO2 and H2O are triatomic molecules, the shape of H2O molecule is bent while that of CO2 is linear.
CO2 molecule has only two bonds which lie farthest to each other to minimise repulsion, making an angle of 180°. H2O, on the other hand, has a lone pair. As lone...
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Is there any change in hybridization of B and N as a result of the reaction? (L-III) BF3 + NH3 → BF3.NH3
Hybridisation of B changes from sp2 to sp3 and that of nitrogen remains same as sp3 .
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Arrange the following in order of decreasing bond angles (i) CH4, NH3, H2O, BF3, C2H2 (ii) NH3, NH2 - ,NH4 +
(i) C2H2(180) > BF3(120)>CH4 (109.28)>NH3(107) > H2O(104.5) (ii) NH4 + > NH3 >NH2 - ,
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Which equation explains Nitrification? 1. NH3 → NO2 → NO3- 2. NH3 → NO3 → NO2-
(a) Nitrification is the process of conversion of ammonia.
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