CBSE > Class 12 > Chemistry | CBSE Board | Homework Help

I think ncert is best in chemistry to score good marks nd we can solve more questions by using question bank .Hence according to me, side book is not good in chemistry

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Divyansh Yadav 7 years, 6 months ago

Ncert undoubtly

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Tamoghna Roy 7 years, 6 months ago

1. Chhaya chemistry class 12 2. Dinesh colpabion chemistry 12

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farradays first law

Posted by Ashish Kumar 7 years, 6 months ago

CBSE > Class 12 > Chemistry

2 answers

Aashita Sharma 7 years, 6 months ago

W= molecular mass × I ×T ÷ n× F

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Divyansh Yadav 7 years, 6 months ago

M=zit

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Silver sol

Posted by Ankush Bhatia 7 years, 6 months ago

CBSE > Class 12 > Chemistry

0 answers

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Molar conductivity of acetic acidat infinite dilution os 390.7 and for 0.1 M avetic acis is 3.907S cm^2 per mol . what is ph solution

Posted by Aarzoo Loura 7 years, 6 months ago

CBSE > Class 12 > Chemistry

0 answers

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Hydrogen oxygen fuel cell

Posted by Anil Pawar 7 years, 6 months ago

CBSE > Class 12 > Chemistry

0 answers

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All the values of pressure

Posted by Divya Pal 7 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

Divya Pal 7 years, 6 months ago

All values of pressure

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how to make a model on medicinal chemistry

Posted by Paras Chaudhary 7 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

Princesses Kaur 7 years, 6 months ago

Drag topic

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Is fullerene purest form of carbon.

Posted by Vishu Rathore 7 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

Tamoghna Roy 7 years, 6 months ago

Fullerene is the purest as it has no surface bonds to attract other molecules to react with it.

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Neoprene structure

Posted by Ramjas Jat 7 years, 6 months ago

CBSE > Class 12 > Chemistry

0 answers

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Neoprene

Posted by Ramjas Jat 7 years, 6 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Hcl does not give an acidic solution in benzene. Why?

Posted by Ayushi Choudhary 7 years, 6 months ago

CBSE > Class 12 > Chemistry

0 answers

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How does concentration of sulphuric acid changes in Lead Storage Battery when current is drawn from it?

Posted by Ayushi Choudhary 7 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

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

Concentration of sulphuric acid decrease to 1.2g/cc from 1.3g/cc.. You can see the reaction in which sulphuric acid is reactant hence its concentration decreases

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Why deep sea divers are advised not to come to the surface immediately from deep waters?

Posted by Ayushi Choudhary 7 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

Jin Kazama 7 years, 6 months ago

Because when divers return to surface than they come from extream high pressuer to law so there us chance to brust blood vesseel . If they come imediatelyy ...

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propertise of acids

Posted by Gaurav Durgapal 7 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

Ravi Kumar 7 years, 6 months ago

1. When acid are added to a basic solution it neutarlises the solution . 2 . It turn blue litmus red 3. When it teact with metal then salt and hydrogen gas is liberated .4 . Wjen it react with metal oxide is liberate water and salt . 5 . It play vital role in biological system for instance the acid in our stomach provide from bacteria present in food .6 . It cause acid rain . 7 . It fast the process of rusting 8 . It absorb water if added on human body thus cause ls burn

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What are crystalline solids?

Posted by Ramneet Kaur 7 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

Mo Rahil Khan 7 years, 6 months ago

In crystalline solid regular arrangment of constituent particles is observed and they do not show fluidity and they have sharp melting point and they are anisotropic

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Aldehyde ketone. Intext question 12.5_2. Soln plz

Posted by Abhinav Kumar 7 years, 6 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

What is atomic mass of copper

Posted by Rajya Vardhan Singh 7 years, 6 months ago

CBSE > Class 12 > Chemistry

2 answers

Devraj Pahariya 7 years, 6 months ago

63.498

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Komal Thakur 7 years, 6 months ago

63.5

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The vapour pressure of an anques solution of glucose is 750mm of hg at 373k.calculate molality and mole fraction of solute at 373k v.p of pure H2o is 760mm of hg

Posted by Ravi Kumar 7 years, 6 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

When commen salts is spread over the ice, Ice melt faster. Explain why ??????

Posted by Kartikey Srivastava 7 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

Ravi Kumar 7 years, 6 months ago

It is because the salt get deposited over the ice and causes depression i frezing point due to which it decreases the frezzing point of water and thus ice is melts . It is an effective and cheper method of removalbof ice on road in cold countries.

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I need some solved numericals

Posted by Arsh Kooner 7 years, 6 months ago

CBSE > Class 12 > Chemistry

3 answers

Tannya Pande 7 years, 6 months ago

U can get some solved questions within this app. ??

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Amarjeet Kour 7 years, 6 months ago

Use exam idea its awesome fron the examination point of view

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Kaira Choudhary 7 years, 6 months ago

Hlo

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Why use of molarity is advantage instead use of molality in determine the molar mass of polymer

Posted by Dhruv Saini 7 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

Amarjeet Kour 7 years, 6 months ago

Because molarity is independent but molality depends on temperature. As the temperature increase or decrease molality also increase or decrease

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Whats is the perfect time for study Chemistry??

Posted by Arnab Roy 7 years, 6 months ago

CBSE > Class 12 > Chemistry

2 answers

Manjushree Hiremat 7 years, 6 months ago

when u get interest

1Thank You

Abhigyan Dwivedi 7 years, 6 months ago

All time is perfect for study Chemistry.But you have to create interest and be attentive,stressless and coolmind.

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In an hcp structure structure of atoms , fraction of volume occupied is A and in ccp structure , the fraction is B . Then relation for A and B is

Posted by Diljot Brar 7 years, 6 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

How face type semiconductor prepared by CuO

Posted by Kartikey Srivastava 7 years, 6 months ago

CBSE > Class 12 > Chemistry

0 answers

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Why NaCl is more harder then Na ???

Posted by Kartikey Srivastava 7 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

Amarjeet Kour 7 years, 6 months ago

NaCl is more harder than Na because NaCl has ionic bond and Na has metallic bond. Ionic bond is more stronger than Na

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ANSWER

Conversion of bromoethane to propanone

Posted by Dechen Bhutia 7 years, 6 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Excess of lithium makes LiCl crystals pink . why ?

Posted by Tannya Pande 7 years, 6 months ago

CBSE > Class 12 > Chemistry

1 answers

Rahul Chauhan 7 years, 6 months ago

Due to excess of lithium there would be deficiency of chlorine atom it is fullfilled by electron which is also known as f centre.simply u can say due to f centre

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Chemistry board exams ki kaise pade jab padne batho samaz hi nhi aata

Posted by Virendra Singh 7 years, 6 months ago

CBSE > Class 12 > Chemistry