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

Ask questions which are clear, concise and easy to understand.

Ask Question

Structure of glucose

Posted by Neha N 7 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

What is steric hinderance

Posted by Pragya Sharma 7 years, 11 months ago

CBSE > Class 12 > Chemistry

2 answers

Ujjawal Sharma 7 years, 11 months ago

Hindrance produce by methyl, ethyl group

0Thank You

Vikas Meena 7 years, 11 months ago

Hindrance due to structure of a molecule

1Thank You

ANSWER

Which is the abundent metal on the earth

Posted by Tarkeshwar Yadav 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Navdeep Kaur 7 years, 11 months ago

Aluminium

0Thank You

ANSWER

Which element show +3 oxidation state

Posted by Neeky Aria 7 years, 11 months ago

CBSE > Class 12 > Chemistry

3 answers

Annu Gautam 7 years, 11 months ago

All d-group elements are show commonly +3 oxidation state

0Thank You

Aakash Tiwari 7 years, 11 months ago

0Thank You

Harsh Agarwal 7 years, 11 months ago

Firstly, I will have to say that your question is flawed. Sm, Eu, Tm and Yb show +2 oxidation state.

0Thank You

ANSWER

What is a protective colloid

Posted by Soujanya Sobarad 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Vikas Meena 7 years, 11 months ago

A protective colloidal is one which forms a thin layer around another colloid so as to prevent.it from coagulating

1Thank You

ANSWER

give an example of polymers used to make cups for hot drinks

Posted by Bk Das 7 years, 11 months ago

CBSE > Class 12 > Chemistry

2 answers

Ujjawal Sharma 7 years, 11 months ago

Urea formaldehyde

0Thank You

Bk Das 7 years, 11 months ago

polystyerene

3Thank You

ANSWER

chromium metal can be plated from an acidic solution containing cro3 according to equation cro3+6H+6e->cr+H2O . how many grams of cr will be plated out by 24000C

Posted by Fathima Rana 7 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

many grams of cr will be plated out by 24000C

Posted by Fathima Rana 7 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Write a balanced equation for the hydrolytic reaction of PCl5 in heavy water?

Posted by Muskan Kumari 7 years, 11 months ago

CBSE > Class 12 > Chemistry

4 answers

Aastha Singh 7 years, 11 months ago

PoCl3+H2O=H3Po4+3HCl PCl5 with heavy water then Phosphorous oxychloride are formed PCl5 +D2O =PoCl3+2DCl Hope it helps..

1Thank You

Aastha Singh 7 years, 11 months ago

In moist air,PCl5 hydrolysis to PCl3 and finally gets converted to phosphoric acid- PCl5+H2O = PoCl3 +2HCl

1Thank You

Vikas Meena 7 years, 11 months ago

PCl5 + D2O = POCl3 +2DCl

2Thank You

Kamal Singh Rawat 7 years, 11 months ago

4H2O+PCl5 = 5HCl + H3PO4

1Thank You

ANSWER

What is the role of baso4 in Rosenmund reduction.

Posted by Ujjawal Sharma 7 years, 11 months ago

CBSE > Class 12 > Chemistry

2 answers

Gudiya Chouhan 7 years, 11 months ago

As a poison to stop the reaction at aldehyde otherwise with only pd alcohol is formed

0Thank You

Nitin Murali 7 years, 11 months ago

Surface for catalyst(palladium) to act on

0Thank You

ANSWER

Why is di alkyl cadmium is better for preparing ketones

Posted by Ujjawal Sharma 7 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

What is role of red phosphorus OK hvz reaction.

Posted by Ujjawal Sharma 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Vineit Kumar Gupta 7 years, 11 months ago

It acts as a catalyst i guess i am not sure

0Thank You

ANSWER

Conversion of ethanamine to methanamine

Posted by Sujal Soumya 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Ujjawal Sharma 7 years, 11 months ago

Ethanamine treat with HNO2 ethanol is form then it react with KMNO4 IT form ethnoic acid it react with NH3 FORM CH3CONH2 IT TREAT WITH Koh andbr2

0Thank You

ANSWER

Write mechanism of reaction CH3CH2OH ? ---HBr-------? CH3CH2BR + H2O

Posted by Yashas Shettigar 7 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Structure of phenylethyl ether

Posted by Abhishank Pandey 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Kamal Singh Rawat 7 years, 11 months ago

C6H5—O—C2H5

0Thank You

ANSWER

Draw the structure of 4- terrifyingly -3- iodoheptane

Posted by Moba Konyak 7 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

plź anyone tell me how to many time management

Posted by Nitika Thakur 7 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Write The equation showing the relationship between equivalent and concentrated of a strong electrolyte

Posted by Prasun Tiwari 7 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Previous year

Posted by Choudhary Panwar 7 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Name the method of refining of metal such as Germanium

Posted by Ravi Kumar 7 years, 11 months ago

CBSE > Class 12 > Chemistry

3 answers

Kamal Singh Rawat 7 years, 11 months ago

Germanium is used as a semiconductor and zone refining is best method for prepare pure semiconductor.

1Thank You

Ujjawal Sharma 7 years, 11 months ago

Zone refining

2Thank You

Chinkee Jaatrana 7 years, 11 months ago

Van arkel method Zr react with 2I2 at low temp. and then decompose at high temp. to give pure Zr

0Thank You

ANSWER

Why chlorine is more electronegative

Posted by Swastika Prasad 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Kamal Singh Rawat 7 years, 11 months ago

The chloride has small radii. Due to this force of attraction between nucleus and electron is increase.hence the electronegative is increase.

0Thank You

ANSWER

Wh why chlorine is more electronegative than fluorine

Posted by Swastika Prasad 7 years, 11 months ago

CBSE > Class 12 > Chemistry

2 answers

Ankit Chaudhary 7 years, 11 months ago

Wrong question

2Thank You

Bhumi Jain 7 years, 11 months ago

Chlorine isnot more electonegative than fluorine

5Thank You

ANSWER

I factor of cuso4

Posted by Sachin Singh 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Padmini Soni 7 years, 11 months ago

3Thank You

ANSWER

Why are low spin tetrahedral complexes not formed

Posted by Mohan Chhabaria 7 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Why is sulphuric acid not used during the reaction of alcohol with Ki.

Posted by Annu Gautam 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Padmini Soni 7 years, 11 months ago

Because it oxidises i

0Thank You

ANSWER

Why we used food preservation

Posted by Gaurav Saini 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Navdeep Kaur 7 years, 11 months ago

Increase shelf life of product and not add calories to food

0Thank You

ANSWER

Structure of maltose

Posted by Praduman Singh 7 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

How to prepare Mohr 's salt

Posted by Pinky Kumari 7 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Identify the step to identify cationic and anionic radical in given unknown salt by performing dry and wet test for cationic radical and anionic radical

Posted by Vinayak Kumar 7 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Which of these CdCl2 and NaCl will produce vacancy defect if added to a AgCl crystal?

Posted by Rish Sharma 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Rashi Bamne 7 years, 11 months ago

cdcl2

1Thank You

ANSWER

Page 487 of 608

myCBSEguide

myCBSEguide

Test Generator

CUET Mock Tests

Download myCBSEguide App

All Courses

Other Websites

CBSE Courses

Resources

Corporate

NCERT Solutions

CBSE Sample Papers