Which type of intermolecular forces exists among the following molecules?
(a) H2S molecules
(b) H2O
(c) Cl2 and CCl4
(d) SiH4
(e) Helium
(f) He atoms and HCl molecules
1 Answers
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Assertion : Bond angle of H2S is smaller than H2O. Reason : Electronegativity of the central atom increases, bond angle decreases.
(c) Bond angle of H2S (92°) < H2O (104°31). As the electronegativity of the central atom decreases, bond angle decreases. In the present case, S is less electronegative than oxygen....
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Identify the four groups into which the polymers are classified on the basis of the magnitude of intermolecular forces present in them.
Polymers are classified into four groups based on the magnitude of intermolecular forces. They ar — (i) Elastomers (ii) Fibers (iii) Thermoplastic polymers (iv) Thermosetting polymers Polythene—Polythene is a thermoplastic polymer. Bakelite— It is a thermosetting...
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How would you account for the following: (i) H2S is more acidic than H2O.
(i) This is because bond dissociation enthalpy of H—S bond is lower than that of H—O bond. (ii) This is because two bonds share a double bond in the resonance hybrid...
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Which is more acidic and why, H2O or H2S?
H2S, due to low bond dissociation enthalpy of H–S bond.
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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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Give one example for each of the following types of inter-particle forces (a) London dispersion forces (b)Dipole-Dipole forces
(a) noble gases. (b) between HCl molecules. (c) Between water molecules or HF molecules. (d)Between NO3 - and water molecules
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Which type of intermolecular forces are effected in each of the following process: (i) Sublimation of iodine. (ii) Evaporation of water
(i) Sublimation of iodine : Dispersion forces. (ii) Evaporation of water : Hydrogen bond.
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Critical temperature of two gases A and B are 30^o and -50^o respectively. Which of them has strong intermolecular forces and why?
A will have stronger interparticle forces as it can be liquefied at a higher temperature.
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Assertion (A): Three states of matter are the result of balance between intermolecular forces and the Thermal energy of the molecules.
(a) Both A and R are true and R is the correct explanation of A.
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Intermolecular forces between two benzene molecules are nearly of same strength as those between two toluene molecules.
(iii) These will form minimum boiling azeotrope. (iv) These will not form ideal solution.
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