Incorrect URL accessed!!!!

Hitesh Kumar 8 years, 1 month ago

0.05 M Al2(SO4)3has higher freezing point. 0.05 M Al2(SO4)3: i = 5, fT No of particles ;fT= i x concentration = 5 x 0.05 = 0.25 moles of ions 0.1 M K3[Fe(CN)6] : i = 4, = 4 x 0.1 = 0.4 moles of ions This is the solution that I got from Internet. BUT SAMAJ NAHI AA RAHA HAI ??? kaise

Anushka Tripathi 8 years, 1 month ago

I also not know about this. This is my preboard ques

Hitesh Kumar 8 years, 1 month ago

How ?????? can you give solution too

Anushka Tripathi 8 years, 1 month ago

Sorry not Ale it's Al2

ANSWER

Thermodynamic feasibility of reaction alone cannot decide the rate of reaction.explain with example.

Posted by Unique Person Arupitw 8 years, 1 month ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Give reasons why protonation of phenols is difficult whereas ethanol easily undergoes protonation.

Posted by Anushka Tripathi 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Aisha Grewal 8 years, 1 month ago

Protonation is easier when nucleophilic character Of O(oxygen) is more..... Alcohol have donating nature of alkyl grp... So their protonation is easy.. In case of phenol due to resonance... It not so easier

ANSWER

Name the type of crystal defect produced when Nacl crystal doped with Mgcl

Posted by Unique Person Arupitw 8 years, 1 month ago

CBSE > Class 12 > Chemistry

3 answers

Hitesh Kumar 8 years, 1 month ago

Your welcome ???

Unique Person Arupitw 8 years, 1 month ago

Thanks

Hitesh Kumar 8 years, 1 month ago

When NaCl is doped with MgCl2, each Mg2+ ion replaces 2 Na+ ions to maintain electrical neutrality. One site is occupied by Mg2+ ion while the other remains vacant. Thus, cation vacancies are introduced. This defect is called impurity defect.

ANSWER

A dilute aqueous solution of sodium fluoride is electrolysed what is the products at anode and cathode.. explain

Posted by Abhay Thakur 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Hitesh Kumar 8 years, 1 month ago

When electricity is passed through NaF , NaF --------> Na+ + F- The sodium cation (positive) gets attracted to the cathode (negative) and the fluorine anion (negative) is attracted towards the anode (positive). Thus Na is produced at cathode and fluorine is liberated in the anode.

ANSWER

Number of Sigma and Pi bond in C2 molecules is

Posted by Anand Kumar 8 years, 1 month ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

What is craft temperature

Posted by Manas Awasthi 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Unique Person Arupitw 8 years, 1 month ago

The temperature above which the micelle formation takes place is called Kraft temperature

3Thank You

ANSWER

Explain the cross aldol condensation reaction with the help of suitable example.

Posted by Annu Parween 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Hitesh Kumar 8 years, 1 month ago

In a crossed aldol reaction, two different carbonyl compounds are applied. If both carbonyl compounds contain an α hydrogen atom, both may act as electrophilic carbonyl compound, as well as nucleophilic enol or enolate. In addition, each enol may nucleophilically attack the two different carbonyl compounds. As a result, such a crossed aldol reaction yields four different products.

ANSWER

Nessler reagent name

Posted by Radhika Singh 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 8 years, 1 month ago

K2[HgI4]

ANSWER

Is activation energy depend upon temperature

Posted by Cbse Student 8 years, 1 month ago

CBSE > Class 12 > Chemistry

4 answers

Cbse Student 8 years, 1 month ago

My teacher said that it doesn't depend on temperature

Cbse Student 8 years, 1 month ago

Actually I have a confusion?

Hitesh Kumar 8 years, 1 month ago

Yes

Priyanka Aggarwal 8 years, 1 month ago

Last padegi

ANSWER

What is lanthanide contraction? give 2 consequences

Posted by Prakshal Jain 8 years, 1 month ago

CBSE > Class 12 > Chemistry

2 answers

Prakshal Jain 8 years, 1 month ago

Ar tu l*de khaiga

Priyanka Aggarwal 8 years, 1 month ago

Last khaiga

ANSWER

Geometrical isomerism is not possible in tetrahedral complexes of the type MA2B2?

Posted by Bhavna Shukla 8 years, 1 month ago

CBSE > Class 12 > Chemistry

4 answers

Anjali Sharma 8 years, 1 month ago

Hlo bhavna.i think that u should find on google about this question because some people's here don't know how to talk so pls if u don't know the answer than u can search on Google pls ??

Bhavna Shukla 8 years, 1 month ago

I think u should remain silnce

Bhavna Shukla 8 years, 1 month ago

If u dont know the ans then i shld stay silence disgusting man

Priyanka Aggarwal 8 years, 1 month ago

Tera baap

ANSWER

What is the trend of melting point in first transition series and why

Posted by Prakshal Jain 8 years, 1 month ago

CBSE > Class 12 > Chemistry

2 answers

Priyanka Aggarwal 8 years, 1 month ago

Tera baap

Vaibhav Singh 8 years, 1 month ago

Top to bottom decrease s

ANSWER

Why is cl2 permanent bleaching agent where as so2 is temporary

Posted by Prakshal Jain 8 years, 1 month ago

CBSE > Class 12 > Chemistry

2 answers

Radhika Tyagi 8 years, 1 month ago

Bcz bleaching effect of Cl2 is bcz of oxidation whereas that of SO2 is due to reduction. U may write the reaction as well

Priyanka Aggarwal 8 years, 1 month ago

Tera baap??????????☠️⛑️??????????️???????????️?‍❤️‍?‍??‍❤️‍?‍??‍❤️‍?‍???‍❤️‍??‍❤️‍??‍?‍??‍?‍??‍?‍?‍??‍?‍?‍??‍?‍??️??

ANSWER

Iron on reaction with hcl forms fecl2 not fecl3

Posted by Prakshal Jain 8 years, 1 month ago

CBSE > Class 12 > Chemistry

3 answers

Radhika Tyagi 8 years, 1 month ago

Iron on reaction with hcl forms fecl3+h2. As h2 is a reducing agent, therefore it doesn't allow fe2+ to convert to fe3+

Prakshal Jain 8 years, 1 month ago

AR baki Sab Teri maa

Priyanka Aggarwal 8 years, 1 month ago

????????? ye sare Tere baap

ANSWER

Why f2 is more reactive than cif3

Posted by Prakshal Jain 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Hitesh Kumar 8 years, 1 month ago

This is because of the small size of fluorine atoms, the F-F bond distance is very small due to which there is appreciable inter-electronic repulsion.This repulsion weakens the bond between two fluorine atoms. Hence, F2 is more reactive than ClF3 but ClF3 is more reactive than Chlorine

ANSWER

What is solution ??

Posted by Himanshu Sagar 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Varun Banda 8 years, 1 month ago

A solution is a homogeneous mixture composed of two or more substances. In such a mixture, a solute is a substance dissolved in another substance, known as a solvent.

ANSWER

Which is more reactive among PCl3 and PCl5

Posted by A B 8 years, 1 month ago

CBSE > Class 12 > Chemistry

2 answers

Radhika Tyagi 8 years, 1 month ago

How???

Aditya Raj 8 years, 1 month ago

Pcl5

ANSWER

Refractive index of a solids is observed to have the same value among all directions. Comment on nature of this solids. Would it show cleavage property?

Posted by Aditya Raj 8 years, 1 month ago

CBSE > Class 12 > Chemistry

2 answers

.Ismat .Jamil 8 years, 1 month ago

This is solid of isotopic nature hence is amorphous solid irregular cleavage property cut into two irregular surfaces

Hitesh Kumar 8 years, 1 month ago

If it shows same properties in all direction then it is amorphous. It doesn't show cleavage property

ANSWER

What is ionic solid

Posted by Sachin Rawal 8 years, 1 month ago

CBSE > Class 12 > Chemistry

2 answers

Aditya Raj 8 years, 1 month ago

Solid in which cps are binded in strong electrostic force. In Ionic solid the cation are surrounded with anions and anions are surrounded with cations In aqueous solution and matter free ions present hence conduct electricity

Ayushi Tiwari 8 years, 1 month ago

Solids are the solids contains oppositely charged ions. Consist of positively charged cations and negatively charged anions

ANSWER

How the eq are formed

Posted by Ritu Kansujia 8 years, 1 month ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Describe the principle controlling vapour phase refining of titanium.

Posted by Radhika Tyagi 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Sudha Yadav 8 years, 1 month ago

In this method... Metal is converted into its volatile compound and is collected else where

ANSWER

Why

Posted by Kiti Thakur 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Aditya Raj 8 years, 1 month ago

What why

ANSWER

Bp of alcohol and phenol

Posted by Shivanshu Yadav 8 years, 1 month ago

CBSE > Class 12 > Chemistry

2 answers

Radhika Tyagi 8 years, 1 month ago

Maybe the ques is why alcohol has less boiling point than phenol

Aisha Grewal 8 years, 1 month ago

Kya puchna cha rha h tu

ANSWER

How Delta formation at sea takes place?

Posted by Akash Rathod 8 years, 1 month ago

CBSE > Class 12 > Chemistry

2 answers

Hitesh Kumar 8 years, 1 month ago

Sea water contains a lot of electrolytes. River contains colloids of sand and clay. When they meet the electrolytes neutralise the charge on colloidal particles and result in the precipitation of sand, clay etc. Thus resulting in a delta formation .

Pankaj Sihag 8 years, 1 month ago

Due to coagulation of collidal paricles presrent in river by elecrolyte present in sea

ANSWER

What is legand?

Posted by Akash Rathod 8 years, 1 month ago

CBSE > Class 12 > Chemistry

5 answers

Anushka Tripathi 8 years, 1 month ago

I have prepared all my subject but except physics .

Hitesh Kumar 8 years, 1 month ago

A ligand is an ion or molecule that binds to a central metal atom to form a complex

Akash Rathod 8 years, 1 month ago

Anuska tumhari hogayi taiyaari ya baki hai

Anushka Tripathi 8 years, 1 month ago

Intezar kr rhi hu ki tum apna 5 sub ka B ques send karoge

Anushka Tripathi 8 years, 1 month ago

Ab chemistry suru

ANSWER

Which is the best oxidising agent?

Posted by Akash Rathod 8 years, 1 month ago

CBSE > Class 12 > Chemistry

3 answers

Mmmmmmmmmmmmmmmmmmmm Wwwwwwwwwwwwwwwwwwww 8 years, 1 month ago

Cesium

Aisha Grewal 8 years, 1 month ago

Nai Suda... May be it wrong

Sudha Yadav 8 years, 1 month ago

Lithium

ANSWER

Hoffman bromide reaction?

Posted by Akash Rathod 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Hitesh Kumar 8 years, 1 month ago

CH3 CONH2 + Br2 + 4NaOH = CH3 NH2 + 2NaBr + Na2 CO3 + 2H2O

ANSWER

I dont Know how to conversions of organis compounds can you please help me

Posted by Shweta Soni 8 years, 1 month ago

CBSE > Class 12 > Chemistry

2 answers

Hitesh Kumar 8 years, 1 month ago

You have to memories some of the most important reaction like naming reaction and there some other to have a good control over conversation. So rutta marna start kar do rxn ko.??it will definitely help you.

Aisha Grewal 8 years, 1 month ago

Practice shweta