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Cannizzaro's reaction is performed by

If the enthalpies of formation of C_3H_8(g), CO_2(g) and H_2O(l) at standard conditions are -104 kJ mol^-1, -394 kJ mol^-1 and -286 kJ mol^-1 respectively then the standard anthalpy of combustion of 66 g of C_3H_8(g) will be

If the enthalpy change for the reaction CH_4(g)+Cl_2(g)rarrCH_3Cl(g)+HCl(g), triangleH=-25 kcal. Bond energy of C-H is 20kcal/mol greater than the bond energy of C-Cl and bond energies of H-H and H-Cl are same in magnitude, then for the reaction: 1//2H_2(g)+1//2Cl_2(g)rarrHCl(g) triangleH is

In a calorimeter, the temperature of the calorimeter increases by 6.12 K, the heat capacity of the systemm is 1.23 kJ/g/deg. What is the molar heat of decomposition for the ammonium nitrate?

In a buffer solution consisting of NaCN and HCN, [NaCN] = 0.18(M) and [HCN) = 0.16(M). If 2 millimoles of HCl is added to 100mL of this buffer solution (assuming volume of the solution remains the same because of the addition of HCl), then pH of the buffer will-

If the enolate ion combines with the carbonyl group of an ester, we get

If the enolate ion combines with carbonyl group of ester, we get

In a calomel electrode glass tube is filled with

If the energy released by burning 1 g of carbon is about 8000 cal (or approximately 3 xx 10^(11) erg) then the amount of energy released by converting 1 g of carbon ( or any other matter) completely to nuclear energy would be approximately equivalent to the energy produced by ..... g of carbon

In a buffer solution consisting of a weak acid its salt, the ratio of concentration of salt to acid is increased tenfold, then the pH of the solution will:

If the energy absorbed by each X_2 molecule of a gas is 3.5xx10^-19 J and the bond energy of X_2 is 180.6 kJ mol^-1 then the kinetic energy per atom will be

In a buffer solution comprising a weak base (B) and its ion (BH^+), [B]=[BH^+]. If K_b for the weak base=10^(-5) Then find the pH value of the buffer solution.

If the elevation in boiling point of a solution of 10 gm of solute (mol wt.=100) in 100 gm of water is DeltaT _(b), the ebullioscopic constant of water is

If the elevation in boiling point of a solution of non-volatile, non-electrolyticand non-associating solute in a solvent ( K_(b)=x "K kg mol"^(-1) ) is y K, then the depression in freezing point of the same concentration would be ( K_(f) of the solvent = z "K kg mol"^(-1))

If the e.m.f of a galvanic cell is negative , it implies that :

If the electronic configuration of an element is 1s^(2)2s^(2)2p^(6)3p^(6)3d^(2)4s^(2), the four electrons involved in chemical bond formation will be :

In a breeder reactor, which of the following is converted to fissionable fuel ?

If the electronegativity difference between bonding atoms is 1.7 then the chemical bond is nearly

In a bomb calorimeter, the heat of reaction is measured at :

If the electronegativity difference between two atoms is 2.0, the percentage covalent character of the molecule is :

If the E_(cell)^(o) for a given reaction has a negative value, then whih of the following gives the correct relationships for the value of DeltaG^(@) and K_(eq)

In a body centred cubic cell an atom at the body of centre is shared by-

If the E_(cell)^(@) for a given the correct relationships for the values of DeltaG^(@) and K_(eq)?

In a body centred cubic arrangement, the number of atoms per unit cell is-

If the E_(cell)^(@) for a given reaction has negative value, which of the following gives the correct relationships for the value of DeltaG^(@) and K_(eq)

If the E_("cell")^(@) for a given reaction has a negative value, which of the following gives the correct relationships for the value of DeltaG^(@) and K_(eq)-

If the E_("cell")^(@) for a given reaction has a negative value, then which of the following gives the correct relationships for the values of Delta G ^(@) and K_(eq),

If the E^(0) of a metal is large and negative, the metal is a ………..

If the distance between Nat and C ions in sodiumchloride crystal is Xpm, the length of the edge of the unit cell is

If the dissociation constant of an acid HA is 1 xx 10^(-5) the Ph of a 0.1 M solution of theacid HA will be approximately:

In a body-centred cubic arrangement the ion A occupies the centre while the ions of B occupy the corners of a cube. The formula of the crystal is:

If the dispersion medium is an alcohol, the colloid is termed as______.

In a body-centred and face-centred arrangement of atoms of an element, what will be the number of atoms present in respective unit cells ?

In a body centred cubic arrangement the ion A occupies the centre while the ,ions B occupy the corners of a cube the formula of the crystal is:

If the disintegration constant of an isotope is .1237 xx 10^(-4) "years"^(-1), then its half-life period will be

In a body centered unit lattice of A_(2) type

If the disintegration constant is 6.93 xx 10^(-6) yr^(-1), then half-life of ._(6)C^(14) will be

In a bimolecular reaction , the steric factor P was experimentally determined to be 4.5 , the correct option (s) among the following is (are)

If the dipolemoment of toluene and nitrobenzene are 0.93 D and 3.93 D what is the dipolemoment of p-nitrotoluene ?

If the density of the solvent is 2.5 kg dm^(-3) . The 2 molal solution of a solute in this solvent will be molal solution of a solution of a solute in this solvent will be

In a binary solution, mole fraction of one component is 0.068. What is the mole fraction of another component?

In a bimolecular reaction. The steric factor P was experimentally determined to be 4.5. the correct option(s) among the following is (are)

If the density of some lake water is "1.25 g mL"^(-) and contains "92 g of Na"^(+) ions per kg of water, calculate the molality of Na^(+) ions in the lake.

If the density of some lake water is 1.25 g mL""^(-1)and contains 92 g of Na^+ ions per kg of water, calculate the molality of Na^+ions in the lake.

If the density of some lake water is 1.25 g mL^(-1)and contains 92 g of Na^+ ions per kg of water, calculate the molarity of Na^+ions in the lake.

If the density of some lake water 1.25g mol^(-1) is and contains 92 g of Na^(+) ions per kg of water, calculate the molality of Na^(+) ions in the lake.

If the density of pure water is 0.999gcm^(3). The molarity of prue water will be

In a balance equation H_(2)SO_(4) + xHI to H_(2)S + yI_(2) + zH_(2)O,find the ratio of x+y, y+z