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Ammonia is a stronger base than phosphine why

Posted by Aryan Singh 8 years, 1 month ago

1 answers

Aman Rathee 8 years, 1 month ago

Because on ammonia electron pairs are present on small sized nitrogen atom. so can be easily donated as compared phosphine on e' pairs r present on bigger sized phosphorus

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Bleaching action of chlorine is permanent. Justify?

Posted by Sohaib Akhtar 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Radhika Tyagi 8 years, 1 month ago

Bcz it is due to oxidation

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2 fluorobutanoic acid is more stronger than 3 fluorobutanoic acid?

Posted by Sohaib Akhtar 8 years, 1 month ago

CBSE > Class 12 > Chemistry

0 answers

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What is rectified spirit?

Posted by Sohaib Akhtar 8 years, 1 month ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

how we can score 60+in 70 in chemistry

Posted by Shobhitha Shetty 8 years, 1 month ago

CBSE > Class 12 > Chemistry

3 answers

Radhika Tyagi 8 years, 1 month ago

Aisa to kuch ni h

0Thank You

Lakshay Saxena 8 years, 1 month ago

Bs kuch common si baate yaad kr lo..... Sb me vhi ans. Hote h

5Thank You

Sanju Kumar Sah 8 years, 1 month ago

pd kr ke

1Thank You

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choloroacetic acid is stronger acid than acetic acid

Posted by Tajender Sheoran 8 years, 1 month ago

CBSE > Class 12 > Chemistry

0 answers

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Any tricks to study organic chemistry

Posted by Neeraj Mohan 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Radhika Tyagi 8 years, 1 month ago

Phle name reaction kr lo

1Thank You

ANSWER

Nacn in the extraction of gold from its one?

Posted by Sohaib Akhtar 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Benedict Sabu 8 years, 1 month ago

NaCn act as a depressent. Refer the eqn of its action.

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How Brownian moment responsible for the stability of sols?

Posted by Sohaib Akhtar 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Zyxw Abcd 8 years, 1 month ago

Brownian moment has stirring effect.thus it does not allow particles to settle, owing to the stability of the Sol.

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Out of SN1 SN2 which reaction occur with 1. inversion of configuration 2. Racemisation

Posted by Sohaib Akhtar 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Yuthika Yadav 8 years, 1 month ago

SN1 occur with racemization and SN2 occur with inversion of configuration

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Molar conductivity?

Posted by Sohaib Akhtar 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Abc Arora 8 years, 1 month ago

Molar conductivity of a solution at a given conc is the conductance of the vol V of sol containing one mole of electrolyte kept bw two electrodes with area of cross section A and dist of unit length Molar conductivity = kA/l

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What is the slope of the curve?

Posted by Sohaib Akhtar 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Pranjali Mahajan 8 years, 1 month ago

Tan theta

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Name the method used for refining copper metal?

Posted by Sohaib Akhtar 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

E Thanigai Selvan 8 years, 1 month ago

Copper can be refined by electrolytic method

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Actinoid elements show wide range of oxidation state?

Posted by Sohaib Akhtar 8 years, 1 month ago

CBSE > Class 12 > Chemistry

0 answers

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Organic Ko prepare kaise kre specially reactions ke numericals

Posted by Jass Mangla 8 years, 1 month ago

CBSE > Class 12 > Chemistry

5 answers

Jass Mangla 8 years, 1 month ago

Can someone help me ??

0Thank You

Jass Mangla 8 years, 1 month ago

Organic shod nhi skte kyuki iski weightage hi bohat hai

0Thank You

Jass Mangla 8 years, 1 month ago

Jehse A reacts with some compound and give B such that ....and identify A,B...

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Radhika Tyagi 8 years, 1 month ago

Reaction k numerical konse hote h

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Garima Suyal 8 years, 1 month ago

Organic chodo physics dekho.

2Thank You

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Toluene is more easily nitrated than benzane ? Explane

Posted by Ml Sharma 8 years, 1 month ago

CBSE > Class 12 > Chemistry

0 answers

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Why bond angle in Ph4 is higher than that in Ph3. Why?

Posted by Aditya Raj 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Ishu Chouhan 8 years, 1 month ago

Both are sp3 hybridised . In PH4+ all the four orbitals are bonded whereas in PH3 there is a lone pair of electrons on Phosphorus , which is responsible for lone pair bond pair repulsion in PH3 . That is the reason bond angle in PH4 is higher than PH3

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nitrobenzene react with br2/h20 to form

Posted by Manish Kumar 8 years, 1 month ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Why are solid are rigidity?

Posted by Shi Singh 8 years, 1 month ago

CBSE > Class 12 > Chemistry

2 answers

Jass Mangla 8 years, 1 month ago

Bcz the intermolecular attraction is strong due which they r non compressible and rigid in nature

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Ok Ok 8 years, 1 month ago

Because the molecules are held tightly in that

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Imp sources of sulphur

Posted by Aayisha Azeez 8 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Ishu Chouhan 8 years, 1 month ago

Gypsum, zinc blende etc.

1Thank You

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H2S is less acidic than H2Te why

Posted by Aayisha Azeez 8 years, 1 month ago

CBSE > Class 12 > Chemistry

3 answers

Jass Mangla 8 years, 1 month ago

Due to Inc in size as we move down the group the dissociation enthalphy Dec and acidic character Inc

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Ishu Chouhan 8 years, 1 month ago

Due to decrease in bond dissociation enthalpy down the group,acidic character increases.

1Thank You

Ritu Gupta 8 years, 1 month ago

Because as we move down the group atomic size increases so the E-H bond length increases and its strength decreases so Te easily loses H2 and thus is more acidic

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Why is H2O a liquid and H2S a gas?

Posted by Aayisha Azeez 8 years, 1 month ago

CBSE > Class 12 > Chemistry

2 answers

Ishu Chouhan 8 years, 1 month ago

Due to small size and high electronegativity of O2, molecules of water are associated through hydrogen bonding. While H2S is not associated through it hence H2S is a gas

0Thank You

Ritu Gupta 8 years, 1 month ago

Because electronegativity difference between H and O is greater than between H and S. Thus H2O forms hydrogen bonding and associates with each other and thus in liquid form while there is no hydrogen bonding inH2S

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how is methylene obtained from benzoic acid

Posted by Sanjay Prasad 8 years, 1 month ago

CBSE > Class 12 > Chemistry