Statement-I: Gold chloride `(AuCI_(3))` solution cannot be stored in a vessel made of copper iron, nickel, chromium, zinc or tin.
Because Statement-II: Gold is veru precious metal.

Statement-I: If an aqueous solution of NaCI is electrolysed, the product obtained at the cathode is H_(2) gas and no Na. Because Statement-II: Gases are liberated faster than the metals.

Statement-I: If an aqueous solution of NaCI is electrolysed, the product obtained at the cathode is H_(2) gas and no Na. Because Statement-II: Gases are liberated faster than the metals.

Statement-I: 1M solution of Glauber's salt is isotonic with 1M solution of KNO_(3) . Because Statement-II: Solutions having same molar concentration of solute may or may not have same osmotic pressure.

Statement - I : The equation sqrt(3)cosx-sinx=2 has exactly one solution in [0,\ 2pi]dot Because Statement - II : For equations of type a costheta+b s intheta=c have real solutions in [0,\ 2pi],\ |c|lt=sqrt(a^2+b^2) should hold true. A (b) B (c) C (d) D

Statement-I : In Rutherford's gold foil experiment, very few alpha -particles are deflected back. Because Statement-II : Nucleus present inside the atom is heavy.

represents the distillation of mixture of liquid A and liquid B which gives both of pure liquid A and B . Represents the azeotropic mixture of HNO_(3) and H_(2)O which distillation gives an azeotropic mixture and either of pure liquid. We cannot separate both the pure liquid, i.e., H_(2)O and HNO_(3) . Which of the following statements is/are correct? i. HNO_(3) solution is not obeying the Raoult's law. ii. More the difference in vapour pressure of pure compounds forming a mixture, easier to separate them through distillation. iii. T_(2) is less than T_(1) because the liquid of composition Q is richer in more volatile component.

Statement-I: If decimolal solution of sodium chloride boils at 101.2^(@)C , then decimolal solution of calcium chloride will also boil at the same temperature. Because Statement-II: For same molal concentration of aqueous solutions of electrolytes, the elevation of boiling point may not be same.

Statement I: The electronic structure of O_(3) is : Statement II: structure is not allowed because octet around O cannot be expanded.

Statement 1 is True: Statement 2 is True; Statement 2 is a correct explanation for statement 1 Statement 1 is true, Statement 2 is true;2 Statement 2 not a correct explanation for statement 1. Statement 1 is true, statement 2 is false Statement 1 is false, statement 2 is true Statement I: Consider the system of equations 2x+3y+4z=5x+y+z=1x+2y+3z=4 This system of equations has infinite solutions. because Statement II: If the system of equation is e_1: a_1x+b_1y+c_1-d_1=0 e_2: a_2x+b_2y+c_2z-d_2= e_3: e_1+lambdae_2=0,\ w h e r e\ lambda\ R\ &(a_1)/(a_2)!=(b_1)/(b_2) Then such system of equations has infinite solutions. a. A b. \ B c. \ C d. D

Can a solution of 1 M copper sulphate be stored in a vessel made of nickel metal ? Given that E_(Ni^(+2)//Ni)^(@)=-0.25 volt and E_(Cu^(+2)//Cu)^(@) =+0.34 volt