Physical Properties (Group 1)
Trending Questions
Q. 67 Give the increasing order of solubility of the following carbonates and sulphates respectively(II A grp) 1)BeCO3, MgCO3, CaCO3, SrCO3, BaCO3 2)BeSO4, MgSO4, CaSO4, SrSO4, BaSO4
Q. what is the molar solubility of AgCl(s) in 0.1M NH3 (aq)?Ksp(AgCl)=1.8*10^-10 , Kf[Ag(NH3)2]^+=1.6*10^7.
Q. Mole fraction of NaOH in 5 molal aq. NaOH solution i
Q. 68 Solubility of AgCl in 0.2M NaCl is x and that in 0.1 M AgNO3 is y then which of the following is correct ? (1) x = y (2) x > y (3) x < y (4) we can not predict
Q.
Na2SO4 is soluble in water while BaSo4 is insoluble. Which of the reason is correct about the above statement
Lattice energy of BaSO4 exceeds its hydration energy
Hydration energy of BaSO4 exceeds its hydration energy
The solubility in H2O of a compound depends only on its hydration energy
The solubility in H2O of a compound depends only on its lattice energy
Q.
Which of the following has a high polarising power
Mg2+
Al3+
Na+
Ca2+
Q. the solubility of CaCO3 is 7*10^-3 mg/litre.calculate the solubility of BaCO3 (in mol/l) from this information and from the fact that when Na2CO3 is added slowly to a solution containing equimolar concentration of Ca^2+ and Ba^2+, no precipitate of CaCO3 is formed until 90% of Ba^+2 has been precipitated as BaCO3 .(assume no hydrolysis of CO3^2- ion.)
Q. 39. How many copper atoms are present in 13.05g of copper?
Q. 37. The K.4 x 10-12. The molar solubility of the salt isfor a sparingly soluble Ag, CrO4 isSP(1) 2.0 x 10- mol L-1(2) 1.0 x 10-4 mol L-1(3) 2.0 x 10-12 mol L-1 (4) 1.0 x 10-15 mol L-1
Q. What volume of 0.4 M Na2S203 would be required to react with the l2 liberated by adding excess of Ki to 50 ml of 0.2 M CuS04, when in reaction cuprous salt is formed with 12?
ptions:
25 ml
11.2 ml
50 ml
5 ml
Q. A sample of AgCl was treated with 5.00 ml of 1.5 (M) Na_2CO_3 solution ^ to give Ag_2CO_3. The remaining solution contained 0.0026 gL^{-1} of Cl^-. Calculate the solubility product of AgCl. \lbrack K_{sp}(Ag_2CO_3)=8.2×10^{-12}\rbrack
Q. 36. What is the reaction between fluorine and hot and concentrated NaOH?
Q. Amount of H2O2 present in 1L of 1.5 N H, O2 solution is(1) 8 g(3) 2.5 g27.(2) 3g(4) 25.5 g
Q. For the reaction PCl3, (g) + Cl2(g) gives PCl5(g), at 250C, value of Kcis 26, then the value of Kp at same temperature will be (1) 0.61 (3) 0.92 (2) 0.47 0.26
Q. The density of 3 molar solution of NaCl is 1.25gperml .Find out its motality
Q. 7 The solubility of srf2 at 25degree Celsius is 0.0122g/l what will be ksp of srf2 at this temp (mol wt srf2 125.6g)
Q. 21. The correct order of increasing solubility of AgCl2 in (a) Water (B) 0.1 M Nacl (C)0.1 M BaCl2 (D)0.1 M NH3
Q. What is the mass of the ppt formed when 50ml of 16.9% solution of AgNo3 is mixed with 50ml of 5.8% NaCl solution.
Q. 46. Molarity of Cl- when equal volume of 0.5 M AgNO3 and 0.5 M NaCl solution are mixed
Q. 21. The solubility of PbCl2 in water is 0.01M at 25^° c maximum concentration of Pb2+ in 0.1M NaCl will be
Q. How H3Po3 have basicity =2
Q. 0.05M Nacl of 100 ml, 20.1M MgCl2 of 200ml are mixed and made to 500 ml.Find the concentration of Cl-.
Q. 14. Calculate solubility of calcium flouride(CaF2) in presence of 0.1 M KF
Q. lThe crystalline salt Na2SO4.xH2O on heating loses 55.9% of its mass and becomes anhydrous. Theformula of crystalline salt is
Q. Which of the following acts as a better metal?
- Li
- Na
- K
- Rb
Q. Which of pair of ions will act as strong oxidising agents?
- Mn3+ and Co3+
- Mn3+ and Sc3+
- Co3+ and Sc3+
- Cr3+ and Ti3+
Q. The metal that produces red-violet colour in the non-luminous flame is:
- Ba
- Rb
- Ag
- Pb
Q. The concentration of NH_4OH in 0.18 M aqueous ammonium acetate solution will be \lbrack Given: K_a(CH_3COOH)=K_b(NH_4OH)=1.8×10^{-5}\rbrack (1) 10^{-3}M (2) 10^{-4}M (3) 4×10^{-3}M (4) 6×10^{-5 }M
Q. The metallic luster exhibited by sodium is explained by :
- oscillation of loose electron
- diffusion of sodium ions
- excitation of free protons
- existence of body-centered cubic lattice
Q. Which is more basic and why?