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A colloidal system in which solid is dispersed in a liquid is called ...
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The half life for a radioactive disintegration is 100 year-1. Time in which 87.5% of the radioactive element is decomposed is ...
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For the reaction N2+3H2→2NH3 rate of appearance of NH3 is 6 mol L-1 s-1 then rate of disappearance of H2 is ...
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The emf of the cell, Zn|Zn2+(0.01M)||Zn2+(0.1M)|Zn is given by (E°Zn2+,Zn=-0.76 V) ...
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Which of the following is true regarding bond order? ...
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Shape and hybridization of XeF2 is ...
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An electron travels with a velocity of v m/s. For a proton to have the same de Broglie wavelength, the velocity will be approximately ...
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In a compound, element Y form fcc and element X occupies half octahedral voids. The formula of the compound is ...
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pH of 0.1M aqueous solution of acetic acid is (Ka=4×10-5) ...
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Consider the following equilibrium in a closed container N2O4 [eq] 2NO2 At a fixed temperature the volume of the reaction container is halved, Then which of the following is true regarding equilibrium constant(Kp) and degree ...
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The enthalpy of combustion at 25°C of H2, cyclohexene(C6H10) and cyclohexane(C6H12) are -241, -3800 and -3920 kJ/mol respectively. The heat of hydrogenation of cyclohexene is ...
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The vapour pressure of solution of 5 g of non-electrolyte in 100 g of water at a particular temperature is 2985 M/m2. The vapour pressure of pure water at that temperature is 3000 N/m2. The molecular weight of the solute is ...
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The root mean square velocity of hydrogen is √7 times the root mean square velocity of nitrogen. If T is the temperature of the gas, ...
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How many moles of electron weigh one kilogram? ...
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When two diffetent capacitors carrying diffeent charges are connected , the final energy of the system ...
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Two concentric spheres are such that the outer sphere has a charge +Q and the inner is grounded.In another case the inner sphere has charge +Q and the outer is grounded.In which case will the capacitance be higher ? ...
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In the previous question if the wavelength of light ray is λ in air , what is the wavelength in glass ? ...
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Light ray enters into a glass slab of refractive index μ and then comes out it. If θ1 and θ2 be the initial and final angles with normal then ...
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In the above question what is the net decrese in entropy of the system ? ...
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Two blocks each of mass m and specific heat capacity C initially at temperatures at T1 and T2 are brought in contact.What is the final temperature of the block ? ...
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Centre of mass of a solid sphere whose density varies as Ï = Ïor will be ...
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A planet in a distant solar system is 4 times more massive than the earth and its radius is 16 times smaller. Given that the escape velocity from the earth is 11 km s–1, the escape velocity from the surface of the planet wo ...
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A spherical solid ball of volume V is made of a material of density Ï1. It is falling through a liquid of density Ï2 (Ï2 < Ï1). Assume that the liquid applies a viscous force on the ball that is proportional to the nt ...
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*Image* What is the resitance between A and B if all resitances are R. ...
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The output of two signals is 1 when exactly one input is 0 and the other 1..Which GATE describes this situation ? ...
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A proton and an electron moving with equal momentum enter into a perpendicular magnetic field.Then, ...
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Magnetic field B inside a solenoid is μoni where n is ...
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A metallic rod of length L rotates about one of its ends with angular speed ω in a magnetic field B. What is the potential difference between the two ends ? ...
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In a CR circuit ...
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n resistors are connected in series and then in parallel. What is the ratio of power developed in the two cases ? ...
asked2009-04-15 21:12:46