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  • 1 answers

Sia 🤖 3 hours ago

Racemization occurs when one pure form of an enantiomer is converted into equal proportion of both enantiomers, forming a racemate.

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Kishan Kumar 15 hours ago

Because after removal of chlorine the carbocation formed will be more stable by resonance thus the reaction which includes formation of most stable carbocation always are higly reactive towards SN1.
Noo

Gamer Gk 17 hours ago

Are u from chinmaya??
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Beacuse Sn2 reaction involved front back mechanism in which group is attacks from back side and other group leaving from front side.
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Khuskaran Sidhu 20 hours ago

If boiling points of two components in a mixture are different and we want to separate them,then frac..........
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No.. it's still there..😄

Ranjana Suman 6 hours ago

No

Vineet Ahuja 17 hours ago

No yeh syllabus mein hai

Khuskaran Sidhu 20 hours ago

No,it is in syllabus
Nahin ye syllabus me hain
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Sia 🤖 1 day, 1 hour ago

{tex}Mole\;fraction,\;x\;=\frac{\frac wm}{\frac wm+\frac WM}{/tex}
(where, w and m represent the mass and molar mass of solute and W and M represent the mass and molar mass of solvent.)
{tex}\frac1x\;=\frac{\frac wm+\frac WM}{\frac wm}{/tex} 
{tex}\frac1x=1+\frac{W\times m}{M\times w}\times\frac{1000}{1000}{/tex}
{tex}\frac1x=1+\frac{1000}{M\times m}{/tex}({tex}\because{/tex}Molality, {tex}m=\frac{w\times1000}{m\times W}{/tex})
{tex}=1+\frac{1000}{18\times4.5}{/tex} ({tex}\because{/tex} Molor mass of H2O=18gmol-1)
{tex}=1+\frac{1000}{81}{/tex} 
{tex}=\frac{1081}{81}=13.34{/tex}
{tex}x=\frac1{13.34}=0.075{/tex}

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Sia 🤖 1 day, 3 hours ago

Given, Mass of solute (glycerol) (W2) =?
Molar mass of solute (M2) = 92 g mol-1
Mass of solvent (water) (W1) = 500g
{tex}\Delta{/tex}Tb = 100.42oC - 100oC
= 0.42oC = 0.42 k
Kb = 0.512 k kg mol-1
{tex}\therefore{/tex} {tex}\Delta{/tex}Tb = Kb {tex} \times \frac{{{W_2}}}{{{M_2}}}{/tex}{tex}\times{/tex} {tex}\frac{100}{W_1}{/tex} {tex}\therefore{/tex} W2{tex}\frac{{{\Delta T_b} \times {M_2}\, \times {W_1}\,}}{{{K_b} \times \,100}}{/tex}
W2{tex}\frac{{0.42 \times 92\, \times 500\,}}{{0.512 \times 1000}}{/tex}
W2 = 37.73 g
Hence, the mass of glycerol dissolved = 37.73 g.

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Raman Brar 17 hours ago

Due to large size of chlorine then fluorine.there is small electron cloud in flourine and replusion is very much.
Because chlorine have half filled orbital
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Vikas Semwal 17 hours ago

Solubility increases with increase in temp for solid in liquid ex sugar and water...... Solubility is inversely proportional for gas and liquid ex aquatic animals felt calm in cold water than in warm water

Isha Raj 1 day, 2 hours ago

it is for gas👆

Isha Raj 1 day, 2 hours ago

solubility is inversely proportional to temperature
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Vikas Semwal 17 hours ago

Because F is capable due to smaller size, high electro negativity
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  • 2 answers

Muskan Jangra 1 day, 17 hours ago

P/Q=R/S where R is unknown resistance whose resistance we have to find it

Rishabh Rathi 2 days, 3 hours ago

(R1/R4)=(R2/R3) or R1.R3=R2.R4. Here resistors are named in clockwise manner
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Sia 🤖 1 day, 23 hours ago

The Sandmeyer reaction is a chemical reaction used to synthesize aryl halides from aryl diazonium salts using copper salts as reagents or catalysts. It is an example of a radical-nucleophilic aromatic substitution.

 

Deepika Joshi 1 day, 16 hours ago

https://goo.gl/search/Sandmeyer+reaction Sandmeyer reaction,
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Sia 🤖 1 day, 22 hours ago

H2SO4, 413 K
{tex}\underset{Ethanol}{2\;CH_3-CH_2-OH}\rightarrow\underset{Ethoxy\;ethane\;(or\;Diethyl\;ether)}{CH_3-CH_2-O-CH_2-CH_3\;+\;H_2O}{/tex}

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Mechanism is important

Neha Tomar 1 day, 19 hours ago

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,,,,,,,,,,, ,,,,,,,,,,, 1 day, 22 hours ago

yes ,mainly mechanism of hydration & dehydration..
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Mehak Verma 2 days, 15 hours ago

Although, glucose in its open chain structure contains a free aldehydic group yet it does not give 2,4-DNP test, a characteristic reaction of aldehyde,i.e. -CHO group. This is because glucose actually exists in the cyclic hemiacetal form with only a small amount of the open chain form in equilibrium. Since,the concentration of the open chain form is very low and its reaction with 2,4-DNP are reversible, thus its 2,4-DNP adduct is generally not observed.
  • 4 answers

Deepika Joshi 1 day, 16 hours ago

1

Muskan Jangra 1 day, 17 hours ago

1+(-2)+x=0 1-2+x=0 x=1

Mehak Verma 2 days, 15 hours ago

+1

Vikas Semwal 2 days, 17 hours ago

1
  • 1 answers

Khuskaran Sidhu 2 days, 20 hours ago

Aldehydes having alpha - H atom,reacts with each other in presence of dil.NaOH
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Gelatin works in mixing icw with creme

Vikas Semwal 2 days, 17 hours ago

To prevent hardness
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Vikas Semwal 2 days, 20 hours ago

When dialysis prolonged needed particles also removed out from membrane due to continuous force from water
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Vikas Semwal 2 days, 20 hours ago

Profit

Vikas Semwal 2 days, 20 hours ago

Simply minerals are naturally occurring and ores are formed from which we can got

Gaurav Seth 3 days, 1 hour ago

Minerals

Ores

1. The natural materials in which the metals or their compounds are found in earth are called minerals.

2. All the ores are minerals.

1. Those minerals from which the metals can be extracted conveniently and profitably are called ore.

2. All the minerals are not ores.

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