Related InterviewSolutions

• The energy required to stop ejection of electrons from a Cu plate is `0.24` eV.Calculate the work function Cu when a radiation of wavelength `lambda = 250` nm strikes the plate.A. 24.3 eVB. 24 eVC. 4.65 eVD. 4.95 eV
• The threshold wavelength for the ejection of electrons from the metal X is 330 nm. The work function for the photoelectric emission for metal X is `(h = 66 xx 10^(-34) Js)`A. `1.2xx10^(-18) J`B. `6.0xx10^(-19) J`C. `1.2xx10^(-20) J`D. `6.0xx10^(-22) J`
• A weight lifter, after weight lifting exercises. drinks 500 mL of 9% glucose (mol. Mass 180) solution. The number of glucose molecules consumed by him areA. `1.5xx10^23`B. `3.0xx10^23`C. `4.5xx10^23`D. `6.023xx10^23`
• The molecule having zero dipole moment isA. `CIF_(3)`B. `CH_(4)`C. `PH_(3)`D. `CH_(2)Cl_(2)`
• Which of the following show correct structure of `lCl_(2)`?A. B. C. D. None of these
• The intermolecular interaction that is dependent on the inverse cube of distance between the molecules isA. Ion-ion interactionB. Ion-dipole interactionC. London forceD. Hydrogen bond
• For two ionic solids, `CaO` and `KI`, which of the following statements is false?A. Lattice energy of CaO is much larger than that of KlB. Kl is soluble in benzeneC. Kl has lower melting pointD. CaO has higher melting point
• What is the correct mode of hybridization of the central atom in the following compounds. `NO_(2)^(+),SF_(4),PF_(6)^(-)`A. `sp^(2),sp^(3),d^(2)sp^(3)`B. `sp^(3),sp^(3)d^(2),sp^(3)d^(2)`C. `sp,sp^(3)d,sp^(3)d^(2)`D. `sp,sp^(2),sp^(3)`
• The hybridization state of the central atom in `AlI_3` isA. `dsp^2`B. `sp^3`C. `sp^2`D. `sp`
• Hybridization of the central atom in `PF_3` isA. `sp`B. `dsp^2`C. `sp^2`D. `sp^3`