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  • 1 answers

Sahana Sankaranarayanan 6 years, 9 months ago

Solid States = 4 marks Solutions= 5 marks Electrochemistry= 5 marks Chemical Kinetics= 5 marks Surface Chemistry=4 marks General Principles and Process of Isolation of Elements= 3 marks P Block Elements=7 marks D BLock Elements=5 marks Coordination Compounds=4 marks Haloalkenes and Haloarenes=3 marks Alcohols, Phenols and Ethers=5 marks Aldehydes, Ketones and Carboxylic Acids=6 marks Organic Compounds=4 marks Biomolecules=3 marks Polymers=3 marks Chemistry in Everyday Life=4 marks Total Marks=70 marks
  • 1 answers

Yuvraj Patel 6 years, 9 months ago

Given Density=1.95g/cm3 Weight of H2SO4 =98%=98g Weight of solution =100g Hence, volume of solution =100/1.95 =51.2cm3 Weight of solvent =100-98=2g Molar mass of H2SO4 98g Hence, no. of moles of H2SO4 =Given mass/Molar mass=98/98=1mol Molality =no.of moles *1000/mass of solvent =1*1000/2=500Mol Molarity =no. of moles*1000/volume of solution =1*1000/51.2=19.5Mol
  • 1 answers

Priyanshi Cha 6 years, 9 months ago

Because amino is a ERG .At ortho position it destabilised the phenol by intensify the negative charge while at meta position it remains unaffected.
  • 1 answers

Tanya Majumdar 6 years, 9 months ago

Just remember the process how they react and also the type compounds they rect with
  • 1 answers

Tanya Majumdar 6 years, 9 months ago

1 in very short,2 to 5 in shorts,6 to 8 in sec c, 9 to 11 min in longs.
  • 1 answers

Prit Gajera 6 years, 9 months ago

In rate law expression if sum of the power of reactants is one then it is known as first order reaction
  • 1 answers

Sanskriti S 6 years, 9 months ago

if u know the structure of compound, then u can easily determine acidity/basicity as it is the no. of ionisable OH-/H+ ions. there isn't any other way.. I think..
  • 1 answers

Sanskriti S 6 years, 9 months ago

Fe2O3 + 3C -----> 2Fe + 3CO ; S, Si & P react with O2 to form slag. Si + O2 ----> SiO2(slag) S + O2 ----> SO2 2P + 5O2 -----> P2O5
  • 1 answers

Prit Gajera 6 years, 9 months ago

  • 1 answers

Ts Parmar 6 years, 9 months ago

C12H10
  • 1 answers

Amanpreet Aulakh 6 years, 9 months ago

Acetaldehyde...green apple smell.....found in ripe fruits
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  • 1 answers

Sanskriti S 6 years, 9 months ago

NaCl, KCl, CsCl, etc. exhibit vacancy defect Hydrogen, palladium etc. show interstitial defect
  • 1 answers

Rohit Jain 6 years, 9 months ago

Because Aspartame becomes unstable at high (cooking) temperature
  • 1 answers

Anshika Pahariya 6 years, 9 months ago

Divide the whole syllabus in three parts- Physical Inorganic Organic Prepare organic in the last days, so that you don't forget it during exam Read all the examples within in the chapters thoroughly Prepare all the intext ques Get ready for 60/70 marks!
  • 1 answers

Kartik Periwal 6 years, 9 months ago

Because in haloarenes c-cl bond gets double character and hence bond length of decrease
  • 2 answers

Amrit Kaur 6 years, 9 months ago

Oxidation and reductipn reactions

Jogender Yadav 6 years, 9 months ago

Simultaneously both oxidation and reduton take place.
  • 1 answers

Sonu Sharma 6 years, 9 months ago

Oxygen family
  • 3 answers

Sanskriti S 6 years, 9 months ago

if haloform reacn. is carried out for fluorine, then energy released when new bond (C-F) is formed is much greater than that required to break C-C bond due to its small size & high electronegativity. So the reacn. is explosive in nature.

Suhani Rana? 6 years, 9 months ago

Can you please elaborate it..

Sonu Sharma 6 years, 9 months ago

Due to small in size
  • 1 answers

Suyash Tripathi 6 years, 9 months ago

Those antibiotic which are effective against the particular type of bacteria . Ex- penicillin G
  • 1 answers

Sanskriti S 6 years, 9 months ago

Ca - 8 d F2 - 4
  • 2 answers

Mandeep Sandhu 6 years, 9 months ago

Norethindrone and novestrol

Amrit Kaur 6 years, 9 months ago

Mifepristone, ormeloxifene
  • 1 answers

Amrit Kaur 6 years, 9 months ago

The elements os group number 15 form two types of oxides E2O3 and E2O5. The oxide in the higher o.s is more acidic than that of lower o.s. Their acidic character decreases down the group. E2O5 type oxides of N and P are purely acidic while oxides of As and Sb are amphoteric and oxides of Bi are basic.
  • 3 answers

Sanskriti S 6 years, 9 months ago

sorry it's basicity

Himanshu Thakur 6 years, 9 months ago

Well, how to calculate acidity?.... I think it is related to OH-ions

Sanskriti S 6 years, 9 months ago

acidity of H2SO4 is 2. Normality = Molarity * Acidity = 1.5*2 = 3N
  • 2 answers

Nishant Mor 6 years, 9 months ago

+3 or 5

Amrit Kaur 6 years, 9 months ago

The common o.s of group number 15 elements are -3,+3,+5. Nitrogen shows +1,+2,+4 o.s while phosphorus show +1 and +4 o.s.
  • 1 answers

Shivam Bhati 6 years, 9 months ago

To calculate potential of anoter electrode
  • 1 answers

Sahana Sankaranarayanan 6 years, 9 months ago

Two or more different physical forms of an element which can exists.. For example : diamond and graphite are allotropes of carbon

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