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Which of the following particles, moving with same velocities will posses shorter wavelength?

Posted by Vivek Baghel 8 years, 4 months ago

CBSE > Class 11 > Chemistry

0 answers

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Can we make any bond between two atoms/ions which would be indestructible in nature?

Posted by Swarnendu Bose 8 years, 4 months ago

CBSE > Class 11 > Chemistry

1 answers

Dr. Kamlapati Bhatt 8 years, 4 months ago

Yes , chemical bonds are formed between indivisible or indestructible atoms of different or same elements yielding molecules of certain compounds. Ions can also react to form bonds in the similar way.

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what is lone pair

Posted by Aparna Kachhwah 8 years, 4 months ago

CBSE > Class 11 > Chemistry

1 answers

Anurag Gautam 8 years, 4 months ago

Lone pair is called to be when in a bonding all elements makes their octate but in few elements unable to make it then thier epectrons is said to be lone pair it is clewr by name itself

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Calculate the molarity and molality of 93% of sulphuric acid . The density of solution in 1.84 gm/ml . Calculate the masses of cane sugar and water required to prepare 250 gm of 25% solution of cane sugar .

Posted by Ritika Shaw 8 years, 4 months ago

CBSE > Class 11 > Chemistry

1 answers

Shubham Singh 8 years, 4 months ago

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What is resonance hybrid?

Posted by Saurabh Dixit 8 years, 4 months ago

CBSE > Class 11 > Chemistry

0 answers

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Is there any trick to remember the names of geometries of covalent molecules having bond as well as lone pairs? Ex. See saw, bent, T shaped etc.

Posted by Swarnali Mondal 8 years, 4 months ago

CBSE > Class 11 > Chemistry

0 answers

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What are isomerism

Posted by Kristin S 8 years, 4 months ago

CBSE > Class 11 > Chemistry

1 answers

Payal Singh 8 years, 4 months ago

Isomerism is a phenomenon in which two or more compounds have the same chemical formula but possess different properties because of different structural or spatial arrangements. Compounds which exhibit isomerism are called isomers. There are two types of isomerism:

Structural isomerism
Stereoisomerism

3Thank You

ANSWER

Calculate the uncertainty in position of an electron if the uncertainty in velosity is 5.7*10m/s

Posted by Nowhai Jamik 8 years, 4 months ago

CBSE > Class 11 > Chemistry

0 answers

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What is ice

Posted by Hritik Modanwal 8 years, 4 months ago

CBSE > Class 11 > Chemistry

2 answers

Sunny Nigam 8 years, 4 months ago

The water (H2O) at freezing point. 32 F 0 C 273.5 K

Saniya S 8 years, 4 months ago

Water frozen into solid state

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What will be the mass of 1 atom of carbon12 in gram

Posted by Anshul Soni 8 years, 4 months ago

CBSE > Class 11 > Chemistry

1 answers

Divya Kumari 8 years, 4 months ago

1.992646547*10^-23 gram

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What is hybridisation?

Posted by Simran Rajput 8 years, 4 months ago

CBSE > Class 11 > Chemistry

0 answers

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A certain compound has the molecular formula X4O6 if 10g of X4O6 has 5.72gX find atomic mass of x

Posted by Ankit Kumar 8 years, 4 months ago

CBSE > Class 11 > Chemistry

0 answers

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What is molequle

Posted by Ganesh Mathadhikari 8 years, 4 months ago

CBSE > Class 11 > Chemistry

1 answers

Dr. Kamlapati Bhatt 8 years, 4 months ago

A molecule refers to to two or more atoms of the same or different elements which have chemically combined or bonded to form a single species usually termed as compounds.

Examples of molecule : H₂ O , O₂ CH₄ etc.

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1 mole =

Posted by Ankit Kumar 8 years, 4 months ago

CBSE > Class 11 > Chemistry

2 answers

Divya Kumari 8 years, 4 months ago

6.022*10^23 particles

Ankit Kumar 8 years, 4 months ago

6.022

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What is the relation between normality and molarity

Posted by Simran Chauhan 8 years, 4 months ago

CBSE > Class 11 > Chemistry

0 answers

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What is the difference between normality and molarity

Posted by Simran Chauhan 8 years, 4 months ago

CBSE > Class 11 > Chemistry

1 answers

Sonu Kumar 8 years, 4 months ago

Normality=molarity ×n-factor

ANSWER

What is quantum?

Posted by Simran Chauhan 8 years, 4 months ago

CBSE > Class 11 > Chemistry

2 answers

Riya Agarwal 8 years, 4 months ago

The packets of radiant energy is called quantum

Raunak Pandey 8 years, 4 months ago

The smallest particle of an at is called quantum

ANSWER

what mole

Posted by Ashutosh Singh Singh 8 years, 4 months ago

CBSE > Class 11 > Chemistry

1 answers

Divya Kumari 8 years, 4 months ago

One mole of any substance contain as much as many entities (atoms, molecules,ions) as there are atoms in exactly 12 gram of carbon . It is a special number known as Avogadro's number.i.e. 6.022*10^23 particles.

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What is molecular orbital theory and its significance ?

Posted by Sakshi Dahiya 8 years, 4 months ago

CBSE > Class 11 > Chemistry

1 answers

Divya Kumari 8 years, 4 months ago

Molecular orbital theory is a method for determining molecular structure in which electrons are not assigned to individual bonds between atoms but are treated as moving under the influence of nuclei in the whole molecule.

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Define screening effect

Posted by Ramakant Pauranik 8 years, 4 months ago

CBSE > Class 11 > Chemistry

1 answers

Sohome Chowdhury 8 years, 4 months ago

SCREENING EFFECT MAY BE DEFINED AS THE ELECTRON ELECTRON REPULTION IN ORBITS ,AS THE NO OF ELECTRON INCREASES WITH INCREASING ATOMIC NO. .THIS CAUSES ELECTRONS TO JUMP OUT FROM THE ORBITS CAUSING THE ATOMIC RADIUS TO DECREASE. (AS NO. OF e- DECREASES,BUT PROTON DOESN'T,SO PER e- NUCLEAR CHARGE INCREASES,CAUSING ATOMIC RADIUS TO DECREASE.)

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Quatum number

Posted by Jai Bohat 8 years, 4 months ago

CBSE > Class 11 > Chemistry

1 answers

Divya Kumari 8 years, 4 months ago

Quantum number describe the location and energy of electron in an atom

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Why atomic spectrum are discontinuos

Posted by Vivek Pandey 8 years, 4 months ago

CBSE > Class 11 > Chemistry

0 answers

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Pls give a better explanation for hyperconjugation

Posted by Akash Raja 8 years, 4 months ago

CBSE > Class 11 > Chemistry

0 answers

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Energy level diagram

Posted by Abhishek Mishra 8 years, 4 months ago

CBSE > Class 11 > Chemistry

0 answers

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What is hunds rule of maximum multiplicity?

Posted by Prince Yadav 8 years, 4 months ago

CBSE > Class 11 > Chemistry

1 answers

Ritu Negi 8 years, 4 months ago

According to this rule electron pairing will not take place in a subshell untill each orbital of the subshell is singaly occupied.

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What is Heisenberg uncertainty principle

Posted by Sudarshan Paswan 8 years, 4 months ago

CBSE > Class 11 > Chemistry

1 answers

Sakshi Dahiya 8 years, 4 months ago

It states that it is impossible to measure simultaneously the position and momentum of a small particle with accuracy.

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critical temperature for Co2 and CH4 are 31.1℃ and -81.9℃ respectively. which of these has stronger intermolecular forces and why?

Posted by Aquib Hilal 8 years, 4 months ago

CBSE > Class 11 > Chemistry

0 answers

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Write the drawbacks of Rutherford's model...!!!

Posted by Zainam Algaz 8 years, 4 months ago

CBSE > Class 11 > Chemistry

1 answers

Sakshi Dahiya 8 years, 4 months ago

It could not explain the following : 1)stability of atom 2) line spectra of elements 3) distribution and energy of electrons

ANSWER

What is Black body.

Posted by Aman P 8 years, 4 months ago

CBSE > Class 11 > Chemistry

2 answers

Divya Kumari 8 years, 4 months ago

A black body is a body that absorbs radiation of all frequencies

Sakshi Dahiya 8 years, 4 months ago

It is a perfect radiator and absorber of energy