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Sahil Saini 2 years, 2 months ago

D block elements is called transition metal
  • 2 answers

Rani Bose 2 years, 2 months ago

P⁰A - P⁰S / P⁰A = mole fraction of B i.e the mole fraction of solute particle

Account Deleted 2 years, 2 months ago

Cologative properties ...
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Sharan M 2 years, 2 months ago

conversion of ethyl bromide to ethyl iodide using sodium iodide and dry acetone, this reaction is known as Finkelstein reaction. In dry acetone, sodium bromide gets precipitated. CH3CH2Br+NaI ⇄ CH_3CH_2I + NaBrCH3CH2I+NaBr The classic Finkelstein reaction involves the process of an alkyl bromide or an alkyl chloride into an alkyl iodide which is treated with a sodium iodide. Final Answer:- The correct answer is the conversion of ethyl bromide to ethyl iodide using sodium iodide and dry acetone, this reaction is known as the Finkelstein reaction.

Shanika Sharma 2 years, 2 months ago

The conversion of ethyl bromide to ethyl iodide using sodium iodide and dry acetone, this reaction is known as Finkelstein reaction. In dry acetone, sodium bromide gets precipitated. CH3​CH2​Br+NaI ⇄ CH_3CH_2I + NaBrCH3​CH2​I+NaBr The classic Finkelstein reaction involves the process of an alkyl bromide or an alkyl chloride into an alkyl iodide which is treated with a sodium iodide. Final Answer:- The correct answer is the conversion of ethyl bromide to ethyl iodide using sodium iodide and dry acetone, this reaction is known as the Finkelstein reaction.
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CLASS _12TH _ARTS _PCM_PCB_COMMERCE STUDENTS_ MentorShip_1 YEAR 2024 Exam https://chat.whatsapp.com/FVnZqqD5nZE7Y3orMigwKj
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CLASS _12TH _ARTS _PCM_PCB_COMMERCE STUDENTS_ MentorShip_1 YEAR 2024 Exam https://chat.whatsapp.com/FVnZqqD5nZE7Y3orMigwKj

Priya Bisht 2 years, 3 months ago

Like volume same, force of attraction same, and so on...

Priya Bisht 2 years, 3 months ago

IN IDEAL SOLN WE SAY THAT REACTANT SIDE IS EQUAL TO PRODUCT SIDE

Priya Bisht 2 years, 3 months ago

Those soln which completely follow RAULTS LAW or GAS LAW

Milkan Barbhuiya 2 years, 3 months ago

Those solution who does not obeys rooalt law
  • 1 answers

Milkan Barbhuiya 2 years, 3 months ago

Because of f lanthanide contraction
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Jiya Jha 2 years, 3 months ago

because Butan-2-ol has chiral carbon where as in butan-1-ol there is no chiral carbon
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Kritika Kritika 2 years, 1 month ago

The maximum amount of solute that can dissolve in a known quantity of solvent at a certain temperature is its solubility.

Mahesh Lovely 2 years, 3 months ago

the amount of that substance that is required to form a saturated solution in a given amount of solvent at a specified temperature
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Mahesh Lovely 2 years, 3 months ago

Addition of glycol lowers the freezing point of water in the radiator so that the cold winter temperatures wouldn't burst the lines
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..... ..... 2 years, 3 months ago

The properties of the solutions which depend only on the number of solute particles but not on the nature of the solute are called colligative properties. Relative lowering in vapour pressure is also an example ofcolligative properties. For an experiment, sugar solution is prepared for which lowering in vapour pressure was found to be 0.061 mm of Hg. (Vapour pressure of water at 200C is 17.5 mm of Hg) The following questions are multiple choice questions. Choose the most appropriate answer: (i) Relative lowering of vapour pressure for the given solution is (a) 0.00348 (b) 0.061 (c) 0.122 (d) 1.75 (ii) The vapour pressure (mm of Hg) of solution will be (a) 17.5 (b) 0.61 (c) 17.439 (d) 0.00348 (iii) Mole fraction of sugar in the solution is (a) 0.00348 (b) 0.9965 (c) 0.061 (d) 1.75 or If weight of sugar taken is 5 g in 108 g of water then molar mass of sugar will be (a) 358 (b) 120 (c) 240 (d) 400 (iv) The vapour pressure (mm of Hg) of water at 293K when 25g of glucose is dissolved in 450 g of water is (a) 17.2 (b) 17.4 (c) 17.120 (d) 17.02

..... ..... 2 years, 3 months ago

Wait ??
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Mahesh Lovely 2 years, 3 months ago

The process of photosynthesis is commonly written as: 6CO2 + 6H2O → C6H12O6 + 6O2. This means that the reactants, six carbon dioxide molecules and six water molecules, are converted by light energy captured by chlorophyll (implied by the arrow) into a sugar molecule and six oxygen molecules, the products.
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Sharan M 2 years, 2 months ago

Because of partial double bond between c and oh
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Kirti Bhatt 2 years, 3 months ago

If a solution has more osmotic pressure than any other solution is called hypertonic solution If a solution has less osmotic pressure than any other solution is called hypotonic solution
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Tani Gupta 2 years, 4 months ago

Azeotropes are defined as the mixture of liquids which boil at constant temperature like a pure liquid and posses same composition of components in liquid as well as in vapour phase .
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Tani Gupta 2 years, 4 months ago

Randomness of particles while mixing . Delta S mix is always positive in solutions either it is ideal solution or non-ideal solution (-ve and +ve deviation)
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Tani Gupta 2 years, 4 months ago

The solution which does not follow Raoult's law is called non ideal solution. Non ideal solutions show positive and negative deviations. The solution whose actual vapour pressure is greater than the expected vapour pressure shows positive deviation and the solution whose actual vapour pressure is lower than the expected vapour pressure shows negative deviation.

Anshika Namdev 2 years, 4 months ago

which solution do not obey raoults law,enthalpy of mixture and volume of mixture is not zero
  • 3 answers

Tani Gupta 2 years, 4 months ago

Xb= 1/4, Xa=3/4

Arpit Agnihotri 2 years, 4 months ago

46%(w/w) C2H5OH = 46 gram of C2H5OH (solute) present in 100 gram of solution(solvent:water) mole fraction = (mole of solute)/ (mole of solute + mole of solvent) so, mole fraction of C2H5OH = [46/(2*12+6*1+1*16]/[{46/(2*12+6*1+1*16}+{54/2*1+1*16}] = [46/46]/[{46/46}+{54/18}] = 1/[1+3] = 1/4 hence, ans : mole fraction of C2H5OH = (1/4) molar mass of: C - 12; H - 1; O - 16 mole = mass / molar mass

Deepam Rawat 2 years, 4 months ago

.25 of ethylene gycocol
  • 3 answers

Arpit Agnihotri 2 years, 3 months ago

total weight of solution(NaOH+H20) = 40+54 = 94 mole = mass/molar mass the molar mass of Na =40; O =16;H=1 mole fraction = mole of substance to be founded/mole fraction of solution now, mole fraction of NaOH = moles of NaOH/ (Mole of NaOH+Mole of H2O) = (40/40)/[(40/40)+(54/1*2+16*1)] = 1/[1+3] = 1/4 so, mole fraction of NaOH in the solution = 1/4 mole fraction ( solute+solvent) = 1 therefore mole fraction of H2O = 1-(1/4) mole fraction of H2O=3/4

Rohit 2 years, 4 months ago

1/4

Anshul Pratap Singh 2 years, 4 months ago

1
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Anshul Pratap Singh 2 years, 4 months ago

Electrolyte are those which dissociate into their ions Ex NaCl . Na+ ,Cl-

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