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If diamond is a crystalline solid then why it doesn't show liquid state?

Posted by Shivani Arora 7 years, 8 months ago

CBSE > Class 12 > Chemistry

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Difference between n - type and p- type??? Semiconductor??

Posted by Ganesan Chandanapriya 7 years, 8 months ago

CBSE > Class 12 > Chemistry

1 answers

Liton Barman 7 years, 8 months ago

The semiconductor which is doped by adding 15 group(electron rich) element is called n- type and which is doped by 13 group (elrctron deficient) element called p-type semiconductor. The semiconductor (electronic devices) which are formed by element (metalloid) like silicon germanium etc , called semiconductor.

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Calculate the freezing point of a solution containing 60 gram of glucose (molar mass=180 g mole -¹) in 250 gram water. Kf of water= 1.86 k kg mole-¹)

Posted by Monika Verma 7 years, 8 months ago

CBSE > Class 12 > Chemistry

2 answers

Amit Kumar 7 years, 8 months ago

2.48°C and 275.48kK

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Tarun Asthana 7 years, 8 months ago

◇Tf = kf.1000 .w2/ M2.w1 Where w2 to mass of solute . M2 molar mass of glucose and w1 given wt. of water putting in formula answer comes ◇ Tf=2.4 Kelvin

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Name a salt which is added to AgCl so as to produce a cationic vaccancy

Posted by Deve Shee 7 years, 8 months ago

CBSE > Class 12 > Chemistry

1 answers

Niharika Srivastav 7 years, 8 months ago

SrCl2

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A compound is formed by two elements X&Y. Atoms of the element Y make ccp and those of the element occupy all the octahedral void. What is formula?

Posted by Shivali Dey 7 years, 8 months ago

CBSE > Class 12 > Chemistry

1 answers

Kalas Sahu 7 years, 8 months ago

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Thermodynamic notation for adiabeti process

Posted by Bilal Ahmed 7 years, 8 months ago

CBSE > Class 12 > Chemistry

2 answers

Rishabh Sahu 7 years, 8 months ago

Actually Δ Q=0

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Rishabh Sahu 7 years, 8 months ago

Q =0

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Chemistry me 88 lane ke liya arihant reading karo

Posted by Priyanka Aggarwal 7 years, 8 months ago

CBSE > Class 12 > Chemistry

1 answers

Ganta Joseph 7 years, 8 months ago

Ust read well

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What is the concentration of distilled water?

Posted by Akshay Kumar 7 years, 8 months ago

CBSE > Class 12 > Chemistry

1 answers

Harsh Agarwal 7 years, 8 months ago

55.55 moles per litre..

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Chemistry text sol. Are not there

Posted by Duemeek Rdd 7 years, 8 months ago

CBSE > Class 12 > Chemistry

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What is different between sp2 and sp3?

Posted by Brajesh Kumar 7 years, 8 months ago

CBSE > Class 12 > Chemistry

1 answers

Rishabh Sahu 7 years, 8 months ago

I have written your answer where you asked it for the first time.

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What is different between sp2 and sp3

Posted by Brajesh Kumar 7 years, 8 months ago

CBSE > Class 12 > Chemistry

2 answers

Sambhav Tyagi 7 years, 8 months ago

SP2 has high S character than SP3 . SP2 mein 33% S character mein or SP3 mein 25%. The higher S character have more electronegative

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Rishabh Sahu 7 years, 8 months ago

Sp2 and sp3 are ways to denote the type of hybridisation of orbitals where in 2or more orbitals hybridize to form hybrid orbitals. Sp2 meant 2of p and 1 of s orbitals combine ,sp3 means 3of p and1 of s orbitals combine. Their properties such as bond angles electronegativity ,s character etc differ

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Why KCN is ionic but AgCN is covalent compound?

Posted by Krishan Kumar 7 years, 8 months ago

CBSE > Class 12 > Chemistry

3 answers

Sambhav Tyagi 7 years, 8 months ago

Because K is metal and metals are ionic . But Ag is non metal and they are covalent

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Rishabh Sahu 7 years, 8 months ago

Because in K there are no inner shell d orbitals whereas in Ag + the configuration has inner d orbitals and due to fajan's rule this configuration increase the covalent character.

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Md Yasin 7 years, 8 months ago

Because Ag is heavier than K.

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Order of net dipole moment in ether , ketone , aldehyde if they have same number of carbons ?

Posted by Gopi Sravni 7 years, 8 months ago

CBSE > Class 12 > Chemistry

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Reaction mechanism for Stephens reaction - synthesis of aldehydes

Posted by Gopi Sravni 7 years, 8 months ago

CBSE > Class 12 > Chemistry

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Monochloro structural isomers expected to be form a free radical monochlorination of (CH3)2 CHCH2 CH3

Posted by Samandeep Kaur 7 years, 8 months ago

CBSE > Class 12 > Chemistry

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What is trans effect ?? How to determine the greatest molar conductivity of a complex molecule??

Posted by Sriparna Pal 7 years, 8 months ago

CBSE > Class 12 > Chemistry

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What are the basic factors affecting raoult law

Posted by Khushi Pandey 7 years, 8 months ago

CBSE > Class 12 > Chemistry

2 answers

Priyanka Mishra 7 years, 8 months ago

Raoult's law for the solution containing volatile liquid : The partial vapour pressure of each component is directly proportional to the mole fraction of that component in the liquid state and vapour pressure of the solution is equal to the some of the partial vapour pressure of each component

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Manav Rathore 7 years, 8 months ago

The Raoult’s law states “For a solution of two volatile liquids, the vapour pressure of each liquid in the solution is less than the respective vapour pressure of the pure liquids and the equilibrium partial vapour pressure of the liquid is directly proportional to its mole fraction.

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How to calculate kc in meest equation

Posted by Vip Mishra 7 years, 8 months ago

CBSE > Class 12 > Chemistry