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What is the structure of BrF5 .and Xe F4

Posted by Anuj Singh 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Aman Bhuyan 7 years, 11 months ago

Structure of XeF4 is Put 4 F on 4 corners of Xe and 2 lone pairs on upper face and lower face to satisfy the valency

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How to convert acetaldehyde to ethane.

Posted by Luksh Kumar 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Aman Bhuyan 7 years, 11 months ago

First give NH2NH2 (hydrazine) ,then proceed with wolf-kishner reqction followed by reaction with ethylene glycol and KOH. U will get the desired result

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Why is sky blue in colour?

Posted by Manali Kashyup 7 years, 11 months ago

CBSE > Class 12 > Chemistry

6 answers

.Ismat .Jamil 7 years, 11 months ago

Accordingly,in optics the scattering is governed by Rayleigh scattering ,scattering is inversely proportion to fourth power of wavelength, hence blue colour have small wavelength it's scattering is maximum

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.Ismat .Jamil 7 years, 11 months ago

Dust particles along with water suspended in air form colloid which due to Tyndal effect scatter blue light(due to small wavelength it's scattering is intense) which reaches our eyes & thus sky looks blue

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Annu Baghel 7 years, 11 months ago

In physics

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Vineet Atrri 7 years, 11 months ago

Because the dust particles present in air scatter blue colour

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Annu Baghel 7 years, 11 months ago

Unit 6 optics me h full detail

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Shehbaz Khan 7 years, 11 months ago

please try to read 10 ncert science book chapter name the human eye and the colourful world you will get ur answer

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A litre of sea water ( about 1030 gm) contain 6 x 1/1000 g dissolved O2 calculate mass% and PPM

Posted by Linesh Maravi 7 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Define atomic City write the atomicity of water

Posted by Prince Royce 7 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Define atomicity? Write the atomicity of water

Posted by Prince Royce 7 years, 11 months ago

CBSE > Class 12 > Chemistry

2 answers

Shivi Rao 7 years, 11 months ago

Tendency to loss H^+ ion is known as atomicity. Atomicity of water is 1.

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Eati Srinivasa Rao 7 years, 11 months ago

Atomicity is the number of atoms present in a molecule . Atomicity of water is 3

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highest mp element

Posted by Ziyaul Hussain 7 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

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Who is a very reactive chemical?

Posted by Vaibhav Gupta 7 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Transqulliser

Posted by Aman Barhela 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Anchal Negi 7 years, 11 months ago

It is a drug which is given to the patient who is suffering from anxiety,mental stess ,or depression

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What is basicity of H3PO3?explaib

Posted by Yogendra Mishra 7 years, 11 months ago

CBSE > Class 12 > Chemistry

2 answers

Shruti Bajpai 7 years, 11 months ago

It's basicity is 2 because it has 2 P-OH bonds

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Tanu Panwar 7 years, 11 months ago

Bcz it structure have 3 OH group and basicity is tendeny to release OH

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Why reducing character increases from HF to HI.

Posted by Yogendra Mishra 7 years, 11 months ago

CBSE > Class 12 > Chemistry

2 answers

Shivi Rao 7 years, 11 months ago

Because when we move top to bottom size increase and bond length is also increase Therefore bond is easily break so reducing character is increase

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Sumit Jha 7 years, 11 months ago

Its directly proportional to size. Whereas oxidising power is inversely related to size.

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How to solve conversion problems of organic chemistry ,, what is master reaction I am havina lots of problem

Posted by Harshal Srivastava 7 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Different isomers ki structure kaise bante h organic chemistry me

Posted by Tanu Panwar 7 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

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Can anyone pls tell me the important questions of chemistry practical viva?

Posted by Payal Priya 7 years, 11 months ago

CBSE > Class 12 > Chemistry

3 answers

Shivi Rao 7 years, 11 months ago

In ractical viva examinor is ask you . 1. Why we add H2SO4 add in mohr salt? 2. Why we add H2SO4 add in oxalic acid?

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Aanshika Singh 7 years, 11 months ago

Learn salt analysis tests.. Prepare a chapter from theory ... And read ur project

1Thank You

Pranav Rastogi 7 years, 11 months ago

Questions are mainly asked from ur practical record and ur investigatory project Few of them are as follows: 1.What is standardisation? 2.Which apparatus is used for preparation of H2S gas in laboratory?

2Thank You

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What is the formula of oleum

Posted by Navjeet Mohan 7 years, 11 months ago

CBSE > Class 12 > Chemistry

4 answers

Akki Singh 7 years, 11 months ago

H2S2O7

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Sumit Kumar 7 years, 11 months ago

H2S2O7

1Thank You

Narender Yadav 7 years, 11 months ago

H2S2O7

2Thank You

Rishab Soni 7 years, 11 months ago

H2SO4.SO3

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What is hybridization of NiCO4 on the basis of VBT?

Posted by Akshay Verma 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Lekha Raj 7 years, 11 months ago

Sp3

2Thank You

ANSWER

Convert benzene to N, N dimethyl amine

Posted by Shivanshu Yadav 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Shivanshu Yadav 7 years, 11 months ago

Answer please

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ANSWER

HCHO+CH3OH =? IN presence of cacl2 and hcl gas

Posted by Madhusudan Das 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Shivanshu Yadav 7 years, 11 months ago

Ethanal

6Thank You

ANSWER

HCHO

Posted by Madhusudan Das 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Shivanshu Yadav 7 years, 11 months ago

Formalaldehyde

2Thank You

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A solution containing 0.5g of KCl dissolved in 100g of water freezes at -0.24C. Calculate the percentage ionisation of the salt ?

Posted by Salman Khan 7 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Convert ethyne into propyne

Posted by Apoorva Dubey 7 years, 11 months ago

CBSE > Class 12 > Chemistry

2 answers

Eati Srinivasa Rao 7 years, 11 months ago

First treat ethyne with NaNH2 in liquid ammonia and then add CH3Br

1Thank You

Shivanshu Yadav 7 years, 11 months ago

Freidalcraft rxn

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Number of atoms in unit cell

Posted by Ankit Malik 7 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

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Some of the very old glass objects appear slightly milky instead of being transparent.why? N the ans is.....due to realignment of molecules.....what is realignment n .how is realigning of molecules responsible for milky appearance}???

Posted by Shambhavi Singh 7 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Why glass is called super cooled liquids? Ans h bcz their molecules moves under gravity.......tell me wht does it mean ...pls

Posted by Shambhavi Singh 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Ruhii Yadav 7 years, 11 months ago

They have tendancy to flow slowly nd they r created by giveing tmp nd cooled very fst

1Thank You

ANSWER

How benzophenone can be prepared from benzaldehyde in not more than two steps?

Posted by Pranav Rastogi 7 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Out of BaCl2 and kcl which is more effective

Posted by Hitesh Kumar 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Shambhavi Singh 7 years, 11 months ago

A/c to hardy Schulz's rule....greater is the flocculating power , more will be the coagulation. In BaCl2 , Ba carries charge of +2 whereas K carries charge of +1 .hence BaCl2 will be more effective in causing coagulation.

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ANSWER

What is Raoult's law?

Posted by Sheetal Wankhede 7 years, 11 months ago

CBSE > Class 12 > Chemistry

2 answers

Sheetal Wankhede 7 years, 11 months ago

Yes thanks ranz R...

0Thank You

Ranz R 7 years, 11 months ago

Raoult's Law binary liquid solutions - The partial pressure of each component is equal to product of vapor pressure of pure component and it's molefraction. Hope it helps! ^_^

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{(CH3OH)2Ce(NO3)4} - name this complex

Posted by Ayushi Tiwari 7 years, 11 months ago

CBSE > Class 12 > Chemistry

0 answers

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What are de icing agents?

Posted by Salman Khan 7 years, 11 months ago

CBSE > Class 12 > Chemistry

1 answers

Shambhavi Singh 7 years, 11 months ago

The agents which lowers the freezing points are known as de icing agents.for example...NaCl is a de icing agents which is used to prevent the formation of snow .therefore it is used to clear roads.

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Is there any mechanisms in organic book

Posted by Sudhanshu Garg 7 years, 11 months ago

CBSE > Class 12 > Chemistry