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When a ligand ir ion approach to d- generate d subshell then d -subshell br eak into two sets why explain

Posted by Shivam Pandit 7 years, 6 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

For an elementary reaction 2a+b_3c. The rate of appearance of c at time t is 1.3*10

Posted by Prashant Tomar 7 years, 6 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Explain 12-16 and13-15 compounds

Posted by Vaishnavi Singh 7 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

Manmeet Marwaha 7 years, 6 months ago

12-16 compounds : Compounds formed b/w group 12 elements with elements with elements of group 16 are called 12-16 compounds. Eg : ZnS,Hg,Te etc 13-15 compounds : Compounds formed b/w elements of grou 13 with group 15 elements are called 13-15 compounds. Eg : GaAs,AlP etc

ANSWER

In potassium Dichromate comlpound, chromium transition element has no electrons in d subshell then it shows yellow colour , how it is possible

Posted by Shivam Pandit 7 years, 6 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Which substance show both frenkel and schottky defect and why????

Posted by Rahul Chauhan 7 years, 6 months ago

CBSE > Class 12 > Chemistry

5 answers

Rahul Chauhan 7 years, 6 months ago

K k ji all do not show such as agcl,agi.

Princesses Kaur 7 years, 6 months ago

Some substance Like Agbr or all substances which have ionic vacancies shows both effect ????????

Tannya Pande 7 years, 6 months ago

Yes it is due to ionic vacancy but the coordination number is also effected .??

Rahul Chauhan 7 years, 6 months ago

But as far i had studied that these defects are due to its ionic vacancies???

Tannya Pande 7 years, 6 months ago

AgBr shows both the defects because AgBr crystals has coordination number of 6 which is neither high nor low. ( frenkel has low & schottky has high coordination number) .☺????

ANSWER

Argon and hydrogen are gases but are given as the examples of molecular solids

Posted by Abd Fan 7 years, 6 months ago

CBSE > Class 12 > Chemistry

2 answers

H!Mαη$Hμ Ұαδαυ ✔️ 7 years, 6 months ago

Yes because when these gases make solid then their molecules react with each other by the vanderwall force..hence they make molecular solids

Akki Bhardwaj 7 years, 6 months ago

No

ANSWER

WHICH BOOK IS BEST NCERT OR OTHERS LIKE ABC

Posted by Sandeep Singh 7 years, 6 months ago

CBSE > Class 12 > Chemistry

2 answers

Tamoghna Roy 7 years, 6 months ago

NCERT, Dinesh, chhaya if ur target is HS Cengage, chhaya, Arihant if ur target is JEE /Neet

Saloni S 7 years, 6 months ago

NCERT is best for chemistry but do numerical with the help of other books like pardeep's, Arihant

ANSWER

Ch 2 solutions ko samajne ke liye class11 ka equilibrium Ch aana jaruri hai pls ans

Posted by Saloni S 7 years, 6 months ago

CBSE > Class 12 > Chemistry

7 answers

Tamoghna Roy 7 years, 6 months ago

Ch 2 to 5 needs class 11 concept of equilibrium, and analytical chemistry

Saloni S 7 years, 6 months ago

Thank you

Tannya Pande 7 years, 6 months ago

Just focus on concepts & learn formulas , u will surely able to do it .???

Rahul Chauhan 7 years, 6 months ago

Chemistry ke koi bhi chapter me 11 ka kuch bhi nhi h mainly and examples or intex question solve krne ki kosis kro

Rahul Chauhan 7 years, 6 months ago

No concept of equillibrium is important .focus mainly on formulaes because 5 marks numerical come from this chapter

Saloni S 7 years, 6 months ago

or ch3 ke liye samjna jaruri hair.

Sandeep Singh 7 years, 6 months ago

Not really just learn about the mole concept that is molality normality etc.

ANSWER

Why adsorption is exothermal process?

Posted by Devraj Pahariya 7 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

Tannya Pande 7 years, 6 months ago

During adsorption there is decrease in surface energy which appears as heat & ∆H of adsorption remains always negative so it is called as exothermal process .☺??

ANSWER

Molal elevation constant for sucrose is ?

Posted by Gurkamal Deep 7 years, 6 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

the density of copper metal is 8.95g cm-³pcubic if the radius of copper atom is 1 to 7.8 pm is the per unit cell is simple cubic a bcc or fcc? (at mass of cu=63.54gmol-¹&N=6.62*10²³mol-1)

Posted by Roshan Poddar 7 years, 6 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

What is Amorphous solids ?

Posted by Sumit Kumar Sahu 7 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

Kartikey Srivastava 7 years, 6 months ago

In amorphous solid element are uniformly arranged in all directions and they are isotropic...

ANSWER

A solution of urea in water has a boiling point of 373.128k calculate freezing point of same solution kf=1.86k/m , kb=0.52k/m

Posted by Anchal Kharwar 7 years, 6 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Explain isotropic and anisotropic behavior with reason and full explanation

Posted by Abd Fan 7 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

Janhavi Sharma 7 years, 6 months ago

In case of amorphous substances properties like electrical conductivity refractive index etc are identical in all directions just in case of gas or liquid this property is called isotropy and the substance showing this property is called isotropic and the substance showing different properties are called anisotropy and the substance exhibited this type of behaviour are called anisotropic

ANSWER

Write the complex compound used in chemotherpic

Posted by Garima Paliwal 7 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

Tamoghna Roy 7 years, 6 months ago

I think Pt(NH3)2Cl2 - Platinol or Cisplatin

ANSWER

Explain why the rate of reaction increase in temperatures

Posted by Tanu Tanu 7 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

S Rohit Kumar 7 years, 6 months ago

With the increase in temperature the molecular collisions between the reacting molecules increases for what the rate of the reaction increases.

ANSWER

Difference between natural and synthetic rubber

Posted by Shagun Pandey 7 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

Shagun Pandey 7 years, 6 months ago

I dont know can you help me

ANSWER

Find out no. Of electron passed when charge of 9650c is passed?

Posted by Farhan Azam 7 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

S Rohit Kumar 7 years, 6 months ago

6031250000000

ANSWER

In the arrhenius equation, what does factor e-Ea/Rt corresponds to?

Posted by Deepak Pal 7 years, 6 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Write structure of different dihalogen derivatives of propane

Posted by Abhishek Singh 7 years, 6 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

10g glucose is dissolved in 400g of solution. Calculate percentage concentration of the solution

Posted by Tanu Tanu 7 years, 6 months ago

CBSE > Class 12 > Chemistry

2 answers

Tamoghna Roy 7 years, 6 months ago

2.5

S Rohit Kumar 7 years, 6 months ago

2.5

ANSWER

Write the difference between order and molecularity of reaction

Posted by Tanu Tanu 7 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

Shivam Pandit 7 years, 6 months ago

Order of rxn is sum of concentration terms on which rate of rxn actually depends .It can be fraction as well as zero. On the other hand , molecularity is number of atoms or molecules that collide with one another simultaneously so as to result into chemical rxn . It is always whole number , it cannot be fraction or zero

ANSWER

Write the chemical reaction involved in the process of extraction of gold.explain the role of dilute NaCN and Zn in this process

Posted by Ananya Kumari 7 years, 6 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

The presence of nitro group (-NO2) at O/P position increases the reactivity of haloarenes. Give reason

Posted by Alok Raj 7 years, 6 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Which metal helps in the cathodic protection of iron ?

Posted by Aashita Sharma 7 years, 6 months ago

CBSE > Class 12 > Chemistry

2 answers

Tamoghna Roy 7 years, 6 months ago

Zn, Al, Mg

Shivam Pandit 7 years, 6 months ago

Zinc

ANSWER

anhydrous copper sulphat was dissolved in one beaker and hydrated copper sulphat in anothor beaker. what heat change do you expect in these beaker anfd why

Posted by Anjali Goryan 7 years, 6 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Name the substances which is use as infactant as well disinfection

Posted by Ranjan Yadav 7 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

Tannya Pande 7 years, 6 months ago

Chloroxylenol . ??

ANSWER

Diffusion or osmosis definition and example

Posted by Rudraksh Sharma 7 years, 6 months ago

CBSE > Class 12 > Chemistry

3 answers

Neha Kumari 7 years, 6 months ago

The

Kartikey Srivastava 7 years, 6 months ago

The movement of molecules from high concentration to low concentration is called diffusion....... And the movement of solvent molecular form dilute solution to concentrated solution through semi permeable membrane is called osmosis..

Tannya Pande 7 years, 6 months ago

The movement of molecules from high concentration to low concentration is called diffusion & osmosis is an example of diffusion.☺??

ANSWER

Why we can not grasp water???????????

Posted by Devraj Pahariya 7 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

Tamoghna Roy 7 years, 6 months ago

As it can't be grasped.....

ANSWER

Please help me Which element is more chemically reactive: Mn(manganese) or Cr(chromium)?

Posted by Tamoghna Roy 7 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

Shivam Pandit 7 years, 6 months ago

Chromium is more reactive

ANSWER

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