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

1.convert benzene to benzaldehyde by gatterman koch rxn2. Oxidise benzaldehyde to benzoic acid by using alk KMnO4 3. Esterification : add methanol to benzoic acid we get methyl benzoate.this is one of the easiest methods

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ANSWER

???OPEN CHALLANGE??? Convet ethanoic acid into glycine in at least 5 steps .....if you don't know what is glycine refer NCERT or google......

Posted by H!Mαη$Hμ Ұαδαυ ✔️ 7 years, 3 months ago

CBSE > Class 12 > Chemistry

3 answers

H!Mαη$Hμ Ұαδαυ ✔️ 7 years, 3 months ago

Listen if you use NH3 it will form complex with COOH group

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H!Mαη$Hμ Ұαδαυ ✔️ 7 years, 3 months ago

This is wrong

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Nitika Neb 7 years, 3 months ago

Through HVZ reaction , chloroacetic acid ( ClCH2COOH ) can be prepared and next adding some ammonia solution to the product yields glycine , Note that it is only the inorganic way for conversion of acetic acid to glycine , while in reality , glycine is synthesised in our body by organic reactions ClCH2COOH + 2 NH3 → H2NCH2COOH + NH4Cl

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Conversion of ethanol into propenal

Posted by Vikas Nain 7 years, 3 months ago

CBSE > Class 12 > Chemistry

5 answers

Ankush Sharma 7 years, 3 months ago

First we will convert ethanol into ethylhalide than we will add grignard reagant than we will get propane then we will add aq KOH and get propanol than do its oxidation

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Arsh Sidhu 7 years, 3 months ago

yes you are right after doing oxidation with a oxidising agent such as kmno4

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H!Mαη$Hμ Ұαδαυ ✔️ 7 years, 3 months ago

Answer is (1) first use Cu 573K to oxidise ethanol to form ethanal .......(2) then add methnol in ethanal with dil NaOH { Aldol Condensation } and heat it ...you will get propenal... ....

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H!Mαη$Hμ Ұαδαυ ✔️ 7 years, 3 months ago

Wrong answer ashish???

1Thank You

Ashish Bhati 7 years, 3 months ago

Do the oxidation of ethanol(alcohol) then you will get propenal(aldehyde)

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What are the applications of reverse osmosis

Posted by Jyoti Gautam 7 years, 3 months ago

CBSE > Class 12 > Chemistry

2 answers

Àñshul Shärmã 7 years, 3 months ago

1).... In the purification of water 2).....In wastewater treatment. 3)..... In concentration. Processes

2Thank You

Ashish Bhati 7 years, 3 months ago

It is used to extract salt from sea water

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ANSWER

Estimation of Acid and basic radicals practical

Posted by Aman Bhardwaj 7 years, 3 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

In carius method of estimation of halogen 0.30g of organic compound gave 0.24 g of AgBr find out % of bromine

Posted by Jitisha Kalra 7 years, 3 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

What is +I nd +R effect..?

Posted by Neelesh Pandey 7 years, 3 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Hydration enthalpy?

Posted by Krishnendu S K 7 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Deepak Jindal 7 years, 3 months ago

The energy released when an ion is surrounded by water molecules due to dipole interactions is called hydration enthalpy.

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ANSWER

Why does nitrogen not shows pentavalent state

Posted by Tushar Chaudhary 7 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Neelesh Pandey 7 years, 3 months ago

Bcz of the absence of d orbital Nitrogen doesn't show pentavalent state nd hence does not form pentavalent compounds.

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ANSWER

When a coordination compound CrCl3.6H2O is mixed with AgNO3, 2 moles of AgCl are precipitated per mole of the compound. Write the structural formula and IUPAC name of the complex.

Posted by Iris Wilson 7 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Yuvraj Singh 7 years, 3 months ago

[Cr (H20)5 cl] cl2 IUPAC name - pentaaquachloridochromium(3)chloride

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ANSWER

zno crystal on heating acquire the formula zn 1+×.O.give reason

Posted by Subodh Chaudhary 7 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Ajay Arya 7 years, 3 months ago

On heating zno,it loses oxygen and there is excess of zn2+ ion in the crystal

1Thank You

ANSWER

Name of pure water

Posted by Lucky Pandit 7 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Tikishree Menaka Murmu 7 years, 3 months ago

DI-HYDROGEN OXIDE

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ANSWER

Hydrocarbon

Posted by Vivek Maurya 7 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Tikishree Menaka Murmu 7 years, 3 months ago

It is an organic compound consisting of entirely hydrogen and carbon atom.

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ANSWER

Three elements xy and Z have atomic number 7 8 and 9 respectively. (a) state their position (group number and period number both) in the modern period table. (b) arrange these elements in the decreasing order of their atomic Radii. (c) write the formula of the compound formed when X combines with Z

Posted by Ankush Singh 7 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Ankush Singh 7 years, 3 months ago

Stop

1Thank You

ANSWER

What is acetal

Posted by Nityam Nischal 7 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Shrey Shekhar 7 years, 3 months ago

R2C(OR')2

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ANSWER

what are the important topics in chemistry(chapter wise)??

Posted by Aadhil Abubacker 7 years, 3 months ago

CBSE > Class 12 > Chemistry

3 answers

Priya Singh 7 years, 3 months ago

Only NCERT ki book pdo Intex questions and exercise

3Thank You

O Singh 7 years, 3 months ago

Polymer-classification and different polymer imp-PHBV,glyptal,nylon 6,buna -S

3Thank You

O Singh 7 years, 3 months ago

Organic-all naming reaction ,distinguish test, ncert conversions

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what is meant by rate constant

Posted by Aadhil Abubacker 7 years, 3 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

What is counter ion?

Posted by Arbaz Turk 7 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

O Singh 7 years, 3 months ago

Ion outside the coordination Sphere

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ANSWER

What is strong field ligands

Posted by Rafe Khan 7 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Yogita Ingle 7 years, 3 months ago

Strong field ligands are formed when the crystal field stabilisation energy (Δ0) is greater than the p.
Strong field ligands are called low spin complexes.
Strong field ligands are mostly diamagnetic or less paramagnetic than weak field.

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ANSWER

Conversion of but-1-ene to but-2-ene

Posted by Abhishek Mewada 7 years, 3 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Solution of sample paper 1of 2018 19 EAD

Posted by Krishan Yadav 7 years, 3 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

What are binary compounds?

Posted by Arushi Priya 7 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Ayush Kumar Gupta 7 years, 3 months ago

Compounds having 2 reacting species

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ANSWER

B D glucose pentose O is why

Posted by Shahrukh Silavat 7 years, 3 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

CuSO4+PH3

Posted by Vedika Chavan 7 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Mohit Sepat 7 years, 3 months ago

Cu3P2 and H2So4

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ANSWER

Complete the reaction NaOH+Cl2

Posted by Vedika Chavan 7 years, 3 months ago

CBSE > Class 12 > Chemistry

3 answers

Mansi Sharma 7 years, 3 months ago

2NaOH + Cl2 = NaCl + NaClO +H2O

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Mohit Sepat 7 years, 3 months ago

NaCl n Naocl

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Ammu Gill 7 years, 3 months ago

Nacl+H2o

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ANSWER

Project of food and adulltrasion

Posted by Sandeep Chaurasiya 7 years, 3 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

What is love

Posted by Anand Ranjan 7 years, 3 months ago

CBSE > Class 12 > Chemistry

2 answers

????? ???? 7 years, 3 months ago

Ranjan bora gya hai..

0Thank You

Mansi Sharma 7 years, 3 months ago

What nonsense is this? Stop asking these types of questions in this study app ...

4Thank You

ANSWER

What is permenant hard water

Posted by Subham Kumar 7 years, 3 months ago

CBSE > Class 12 > Chemistry

1 answers

Yogita Ingle 7 years, 3 months ago

When the soluble salts of magnesium and calcium are present in the form of chlorides and sulfides in water, we call it permanent hardness because this hardness cannot be removed by boiling. We can remove this hardness by treating the water with washing soda. Insoluble carbonates are formed when washing soda reacts with the sulfide and chloride salts of magnesium and calcium. And thus hard water is converted to soft water.

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Write the synthesis of bakelite

Posted by Manoj Kumar 7 years, 3 months ago

CBSE > Class 12 > Chemistry