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If there be a compound of the formuls CH_3C(OH)_3 which one of the following compounds would be obtained from it without treatment with any reagent :

If there are three possible values for spin quantum number, then possible number of elements in the 5^(th) perid of periodic table would be :

If the yeild of chloroform obtainable from acetone and bleching powder is 58% . What is the weight of acetone required for producing 23.9 gm of chloroform ? 2CH_(3)COCH_(3) +6CaOCl_(2) to Ca(CH_(3)C"OO")_(2) + 2CHCl_(3) + CaCl_(2) + 2Ca(OH)_(2)

If the Zn^(2+)//Zn electrode is diluted to 100 times then the change in e.m.f.

If the work function (w) of an arbitrary metal is 3.1 eV, find its threshold wavelength and the maximum kinetic energy of the electron emitted when radiation of 300 nm strike the metal surface. ("Take" hc=12400 eV Å)

If the wavelength of light is 5.89 xx 10^(-5) cm, what will be the energy in one photon in the given region of light ? (h= 6.63 xx 10^(-27) " erg".s, c= 3 xx 10^(10)cm//s)

If the volume of the vessel in which the reaction 2 NO + O_(2) to 2NO_(2) is occuringis diminished to 1/3 rd of its initial volume . The rate of the reaction will be increased by

If the volume of the vessel in which the reaction 2NO_((g)) + O2_((g)) rarr 2NO_(2(g)) is occurring is diminished to 1//3^(rd) of its initial volume. The rate of the reaction will be increased by

If the wave number of 1^(st) line of Balmer series of H-atom is 'x' then :

If the volume of a given mass of a gas at constant temperature becomes three times, the pressure will be

If the volume occupied in a crystal by a molecule of NaCl is 47xx10^(-24)mL calculate the volume of the crystal weighing 1g. .

If the velocity of an elelctron moving in first bohr 's orbit of hydrogen has to be reduced to 7.272 xx 10^(5) ms^(-1)it shouldbe shifted by

If the vapour pressure of pure liquids A and B are 300 mm and 800 mmHgat 75^@C , calculate the composition of the mixture such that it boils at 75^@C. Find the composition of the vapour phase.

If the various terms in the given below expressions have usual meanings, the van't Hoff factor (i) cannot be calculated byb which one of the expressions

If the various terms in the following expressions have usual meanings, the van't Hoff factor 'i' cannot be calculated by which of the following expression ?

If the value of n+l is more than 3 and less than 6, what will be the possible number of orbitals?

If the value of Avogadro's number is 6.023xx10^(23)"mol"^(-1) and the value of Boltzman constant is 1.380xx10^(-23)JK^(-1). The number of significant digits in the calculated value of the universal gas constant is:

If the value of Avogadro number is6.023 xx 10^(23) mol^(-1) and the value of Boltzmann constant is 1.380 xx 10^(-23)J K^(-1), then the number of significant digits in the calculated value of the universal gas constant is

If the value of an equilibrium constant for a particular reaction is 1.6xx10^(12), then at equilibrium the system will contain

If the units of rate constant ia a reaction is mol^-1LS^-1 then mention its order.

If the unit of the rate constantof a reaction isdm^(3//2).mol^(-1//2).s^(-1), then the overall order of the reaction will be -

If the unit length of the unit cell is5 Åthe smallest distance is A^(@)between two neigghbouring metal atoms is a fcc is

If the unit of rate constant of a reaction is mol^(-1)Ls^(-1) then mention its order.

If the unit cell of a mineral has cubic close packed (ccp) array of oxygen atoms with m fraction of octahedral holes occupied by aluminium ions and n fraction of tetrahedral holes occupied by magnesiums ions, m and n respectively, are

If the uncertainty in the positioin of an electron is zero, the uncertainty in its momentum would be

If the two alkyl groups attached to the oxygen atom are the same, then it is calleld _______ ether.

If the total energy of anelectron in a hydrogen like atom in excited state is -3.4eV,then the de Broglie wavelength of the electron is

If the two chlorine atoms are attached to the same carbon atom of an alkane, it is termed as :

If the total energy of an electron in a hydrogenatom in excited state is - 3.4 eV, then the de Broglie wavelength of the electron is

If the third layer arrangement is aba arrangement, it is called ………………….. arrangement.

If the temperature of an ideal gas is increased by 25% then by what percentage would its volume increase?

If the t_(1//2) for a first order reaction is 0.4 min, the time for 99.9% completion of the reaction is……………. Min.

If the temperature increases from 0^(@)C to 50^(@)C at atmospheric pressure, which of the following processes is expected to take place more in case of liquids

If the temperature increases from 0^@C to 50^@C at atmospheric pressure, which of the following processes is expected to take place more in case of liquids?

If the system CaF_2(s) hArrCa^(2+) + 2F^- increasing the concentration of Ca^(2+) ions 4 times will cause the equilibrium concentration of F^- ions to change to :

If the supply of oxygen is limited, H_2S reacts with O_2 to form

If the starting materical is 1-methyl-1, 2-epoxy cyclopentane, of absolute configuration, decide which one compound correctly represent the product of its reaction with sodium methoxide in methanol

If the standard electrode potential of Cu^(2+)//Cu electrode is 0.34 V.What is the electrode potential of 0.01 M aqueous solution of Cu^(2+)at 298K?

If the standard electrode protential of Cu^(2+)// Cu electrode is 0.34 V , what is the electrode potential at 0.01 M concentration of Cu^(2+) ? (T = 298^(@)K)

If the standard electrodepotential (E^(@)) of ametal is "______"and "______" the metalis a powerfulreductingagent .

If the standard electrode potential of an electrode is greater than zero, then we can infer that its

If the spin quantum number can have the following values (-(3)/(2), (1)/(2) , 0 + (1)/(2) + (3)/(2)) then, number of elements in 10 ^(th) period of periodic table.

If the SRP of nickel and chlorineelectrodes are -0.25 Vand + 1.36 V respectively . The EMF of the cellNi//Ni^(2+) (0.01M)// // Cl^(-) (0.01M) // Cl_2 , Pt is - V

If the specific conductance and conductance of a solution are same, then its cell constant is equal to

If the solution of mercurycyanide of strenght 3gl/1 has an osmotic pressure 0.3092xx10^(5)Nm^(-2) at 298 K, what is the apparent molecular weight and degree of dissociation of Hg(CN)_(2)?

If thesolution of copper sulphate in which a copper rod is immersed, is diluted 100 times, what is thechange in electrode potential (Reduction) ?

If the solution boils at a temperature T _(1 )and the solvent at a temperature T _(2) the elevation ofboiling point is given by

If the solubility products of AgCl and AgBr are 1.2 xx 10^(-10) and 3.5 xx 10^(-13) respectively, then the relation between the solubilities (denoted by the symbol'S') of these

If the solubility product of lead iodide (Pbl_(2)) is 3.2 xx 10^(-8), then its solubility in moles/litre will be

If the standard electrodepotential (E^(@)) of ametal is ""and "" the metalis a powerfulreductingagent .