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what is mobility

Posted by Shahnawaz Khan 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Himanshu Gupta 7 years, 11 months ago

mobility is defined as the ratio of drift velocity of electron to the applied electric fieldexpressed as U mu=v÷e

ANSWER

What are transition elements

Posted by Bharat Agarwal 7 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

D and f block elements

Posted by Gopal Dixit 7 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

How to find rate of reaction....

Posted by Sowmya Missula 7 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

What is doping

Posted by Nishi Boudha 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Khushbu Shekhawat 7 years, 11 months ago

Process to add impurity

ANSWER

What is vapour pressure

Posted by Himanshu Pal 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Khushbu Shekhawat 7 years, 11 months ago

Pressure exerted by the vapour above liquid surface in equilibrium with the liquid at given temperature

ANSWER

Reaction road map

Posted by Preeti Bhardwaj 7 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Examples of non bio degradable polymers?

Posted by Sakshi Verma 7 years, 11 months ago

CBSE > Class 12 > Chemistry

3 answers

Sahiba Bhayana 7 years, 11 months ago

Tanisha PHBV is biodegradable polymer .

Tanisha Brar 7 years, 11 months ago

PHBV and nylon-2-nylon-6

Gautam Kumar 7 years, 11 months ago

Poly beta hydroxy butyrate - Co -beta-hydroxy valerate

ANSWER

define the term amorphous

Posted by Praveen Singh 7 years, 11 months ago

CBSE > Class 12 > Chemistry

2 answers

Khushbu Shekhawat 7 years, 11 months ago

It is isotropic in nature which cannot cannot change its properties like refractive index and it is also cld pseudo liquid

Praveen Singh 7 years, 11 months ago

Which has irregular shape and size and unsymmetric in nature

ANSWER

Write the structure and iupac name of the alcohol which can be obtained by hydration of isobutylene in the presence of conc. H2so4

Posted by Sahil Sharma 7 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

How do we convert chloro benbenzene to phenol

Posted by Tarun Rajpurohit 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Sweety Yadav 7 years, 11 months ago

Rxn of chlorobenzene with Naoh then hydrolysis

ANSWER

Draw structure of for phosphinic acid

Posted by Jasleen Kaur 7 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Why transition metal are coloured?

Posted by Rahul Kumar 7 years, 11 months ago

CBSE > Class 12 > Chemistry

4 answers

Harsh Bhati 7 years, 11 months ago

Presence of unpaired electron

Anuj Yadav 7 years, 11 months ago

And due to charge transfer also

Khushbu Shekhawat 7 years, 11 months ago

Due to d- d transition and metal charge transfer

Sweety Yadav 7 years, 11 months ago

Due to d-d transition

ANSWER

Define zeta potential

Posted by Rupinder Kaur 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Rahul Agrawal 7 years, 11 months ago

Potential difference b/w electrically double layer. Also known as electro kinetic potential.

ANSWER

Electron withdrawing groups are +I or -I?

Posted by Tarun Yadav 7 years, 11 months ago

CBSE > Class 12 > Chemistry

2 answers

Alisha Bisht 7 years, 11 months ago

-I

Jaahnavi Pannur 7 years, 11 months ago

Electron withdrawing groups are -I group

ANSWER

Aldol condensation Reaction

Posted by Raj Garg 7 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

But1-ene into but 2-ene

Posted by Muzaina Fatima 7 years, 11 months ago

CBSE > Class 12 > Chemistry

2 answers

Alisha Bisht 7 years, 11 months ago

Yes bhawna is right

Bhawna Jain 7 years, 11 months ago

First rxnwith hbr in presence of peroxide then react with Koh alcoholic then but 2 ene formed

ANSWER

Benzaldehyde into benzoic acid????

Posted by Muzaina Fatima 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Tarun Yadav 7 years, 11 months ago

2 Benzaldehyde + conc. NaOH on heating gives benzyl alcohol and sodium benznoate. Sodium benznoate on hydrolysis gives benzoic acid.

ANSWER

How to score 90+ from now.?

Posted by Rithik Kalal 7 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

How we check basic strength

Posted by Priyanka Bansal 7 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Out of pbcl4 and pcl5 which one is more covalent?

Posted by Rituparna Ray 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Harsh Bhati 7 years, 11 months ago

Pcl5 because of oxidation state or high charge presence

ANSWER

In a fcc lattice of x and y , x atoms are present at the corners while y is present at the face centre 1) what would be the formula of the compound if i) one of the atom is missing from a corner in each unit cell ii) two atoms of x are missing from the corners iii) one of the x atoms from a corner is replaced by z atoms ( also monovalent )

Posted by Sruthi R Nandan 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Priyanka Bansal 7 years, 11 months ago

1) 7:24 2) 1:4

ANSWER

The Rate of Reaction X-Y becomes eight times when the concentration of the Reactent X is doble Write the low of the reaction

Posted by Pramod Kudiyam 7 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Why Tertiary Alcohol do not undergo Oxidation Reaction?

Posted by Harsh Deep 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Tarun Yadav 7 years, 11 months ago

Because they do not have alpha hydrogen. However,under strong conditions and elevated temperature,they undergo oxidation with the cleavage of C-C bond.

ANSWER

Why it is necessary to use acetic anhydride during oxidation of toluene to benzaldehyde?

Posted by Mehak Suidui 7 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Conversion in organic chemistry

Posted by Suran Bisht 7 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Why is aniline a weaker base than methylamine?

Posted by Mayank Sharma 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Kamal Singh Rawat 7 years, 11 months ago

In aniline, NH2 make double bond with benzene by donate lone pair of electron. Due to resonance the aniline cannot accept proton. So aniline is weak base than Methylamine.

ANSWER

Why only concentrated sulphuric acid is use in dehydration o f alcohol not nitric acid

Posted by Alisha Bisht 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Aditi Singh 7 years, 11 months ago

Because nitric acid is a strong oxidising agent so it oxidises alcohol into carboxylic acid And sulphuric acid is a weak oxidising agent as compared to nitric acid

ANSWER

Define an atom

Posted by Abhijit Singh 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Abc Kamboz 7 years, 11 months ago

Atom is the basic unit of matter constisting of a central nucleus and surrounded by a charge of negatively charged ions.

ANSWER

Why are not amphorous true solid?

Posted by Karuna Choudhary 8 years ago

CBSE > Class 12 > Chemistry

3 answers

Prabhakar Gupta 7 years, 11 months ago

It is called super cooled liquid because it has tendency to flow

Aanchal Gupta 7 years, 11 months ago

Because they have tendency to flow

Mayank Sharma 7 years, 11 months ago

Because they doesn't have tendency to flow

ANSWER

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