PTFE
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Q. The hydrated salt Na2SO4 xH2O under goes 55% loss in weight on heating and become anhydrous .The value of x will be
Q. 2. What is the molarity of 0.2N Na2CO3 solution?
Q. The molality of a urea solution in which 0.0100g of urea , (NH2)CO is added to 0.3000 dm\ast3 of water at STp
Q. Molarity of NAOH in 200 mL of an aqueous solutionof it is 1M, find the change in molarity if 2g ofNAOH is added to it.(1) 1.25 M2) 0.25 M(3) 0.50 M(4) 0.75 M
Q. 48. n-factor of KI when treated with alkaline KMnO4 solution is 1)2 2)3 3)5 4)6
Q. 2.5L of 1M NaOH solution mixed with another 3L of 0.5M NaOH solution .then find out resul†an t solution
Q. 200ml of 0.01M KMnO4 oxidise 20 ml of H2O2 sample in acidic medium. The volume strength of H2O2 i
Q. 200ml N/10 H2SO4 mix to 300 ml N/100NaOH
Q. 22. How many miles of HCl are present in 1l of 1M HCl solution
Q. which have greaer solubility in ccl4 options cl2, br2 , i2 , NACL . WHY
Q. 7. Can dihydrogen act as a reducing agent if not why??
Q. which of the following attraction is strongest ? 1.Cl- and HCl 2.CHCl3 and CHCl3 3.CCl4 and H2 O 3.Cl- and H2O
Q. 100 ml of 0.2 M NaCl is mixed with 50 ml of 0.5 M AgNO3 solution. Mole of silver chloride formed in the reaction is?
Q. Q 62/75 The molality of a sulphuric acid solution is 0.6 mol/kg. The total weight of the solution is
Q. What is the equivalent mass of carnallite
Q. Nitrobenzene \xrightarrow[{weakly acidic medium}]{electroreduction}niline n factor of nitrobenzene in this process
Q. 34. What is the molarity and molality of 10% NaoH (w/v) solution?
Q. how much water should be added to 300ml of decimormal HCl solution to make it 0.001
Q. What is the molality of NaOH in solution if 50 g of an aq. solution contains 4 g of NaOH?
Q. which of the following is insoluble in dilute HCl (1)CdCl2 (2)PbCl2 (3)BiOCl (4)SbCl
Q. 52. Balance in acidic medium. H2S + Fe -> Fe + S
Q. 29. How much ml of 5.6 volume strength H2O2 solution is required to completely reduce 100 ml of 0.1 M KMnO4 solution in acidic medium
Q. 6.Which of the following structures will form a linear polymeric structure due to H-bonding (1) HCl (2) HF (3) H2O (4) NH3
Q. the resul†an t molarity of solution made by mixing 600ml of 2M NaOH solution and 400ml of 3M NaOH solution i
Q. 50 sucrose solution which is 40% by mass is heated till it become 50% by mass . water lost from 100g of the solution
Q. Calculate the percent error in the \lbrack H, O°ledR1 made by neglecting theionisation of water in 10-6 M NaOH solution.
Q. z effective of sc(z=21).
Q. Which one of the following is used to prepare polythene plastic?
- Ethane
- Methane
- Acetylene
- Ethylene
Q. Which of the following is fully fluorinated polymer-
- Teflon
- Neoprene
- PVC
- Thiokol
Q. the amount ofzinc required to produce 224ml of hydrogen at stp on treatment with dilute sulphuric acid will be
