Zeolites

Q.

The zeolites which are used as ion exchangers in softening of "hard" water are:

1. Hydrated zeolites

2. ZSM-5

3. Feldspar

4. Mica

Q. How many moles of FeSO4 reacted with one mole of KMnO4 in acidic medium?

Q. 47 How many Na ion are present in 100ml of 0.25M of NaCl solution

Q. 15.The moles of Ammonium Sulphate needed to react with one mole of MnO2 in acidic medium in a reaction giving MnSO4 and (NH4)2S2O8 are

Q. How many mole of FeSO4 reacted with one mole of KMnO4 in acidic medium?

Q. Zeolites are ion-exchange resins used for softening of water. Superior ion-exchangers were made just before and Second World War. These consisted of:

1. fine sand
2. a giant structure of hydrocarbons
3. finely divided silica
4. organic salts of lithium

Q. 67.Find molarity of chloride ion present in solution obtained by mixing 200 ml. 0.1M Baso4 and 200 ml. 0.01M Cacl2.

Q. Calculate the number of Cl ion in 100 ml of the solution which is formed by mixing of 200ml 2(M) NaCl(aq) solution, 800 ml 1(M) MgCl_{2 }(aq) solution an 1L 5.3 × 10^{-4 }(M) CCl_{4 }(aq) solution.

Q. The correct statements among the following are
I. Due to greater polarizing power of Li⁺, Li₂CO₃ is most stable
II. LiHCO₃ does not exist as solid
III. NaNO₃ on strong heating gives NaNO₂where as LiNO₃ will give Li₂O
IV. Sodium &Potassium ions are involved in the transport of sugars and amino acids in to the cells

V. LiF is less soluble due to smaller hydration energy of Li⁺ ion

1. I, II & V

2. III, IV & V

3. II, III & IV

4. I, III & V

Q. 53. Ab aqueous solution contains 1 mol of S2O3 2- ions and this reduces 4 mol of Cl2 molecules. What is the sulphur containing product of this reaction?

Q. 12 2electronegativity-ionisation enthalpy-elevtron affinity=0explain

Q. 58. What is the role of catalyst Cu in conversion of 3degree alcohol to Corresponding alkene and water? Explain

Q. 46. 200ml of 1M H_2SO_4 , 100ml of 1M HNO_3 and 100ml of 3 N H_3PO_4 are mixed together the number of H^+ ions present in the solution will be ??

Q. How beryllium show sp*2 hybrid state in becl2 ( beryllium dichloride) ?

Q. the speed of movement of ions in water follow the order ​​li plus na plus k plu an rb plus explain he anomaly

Q. Which of the following statement about zeolite is false?

1. They are used as cation exchangers
2. They have open structure which enables them to take up small molecules
3. Zeolites are aluminosilicates having three dimensional network
4. Some of the $Si{O}_4^{4-}$ units are repalced by $Al{O}_4^{5-}$ and $Al{O}_6^{9-}$^- ions in zeolite

Q. Write no.of ions produced on complete association of 1mole of NaHCO3, aluminum sulphate, aluminum chloride and calcium sulphate