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1 what type of substance show antiferemagnetic ? 2 what type of substance would make better pemanent magnets, ferrimagnetic,or ferromagnetic? 3 calculate the packing efficiency of a metal crystal for simple cubic latish?

Posted by Nilam Agrawal 7 years, 1 month ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

reaction of CH2=CH-CH2OH with K2Cr2O7 and H2SO4

Posted by Ayush Sahu 4 years, 3 months ago

CBSE > Class 12 > Chemistry

0 answers

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Chemistry cbse pratical file full

Posted by Anosh Field 7 years, 1 month ago

CBSE > Class 12 > Chemistry

0 answers

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???Why temp. Applied is very High for Haber's process? Since, ∆H=-ve(exothermic✨)❓❓???

Posted by Harsh Kumar 7 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Rajat Dhull 7 years, 1 month ago

The temperature applied shiuld not be very high it should be of range 700K not more than this because it is exothermic. It is also high temperature but according to the reaction it is low. This is the minimum temperature.

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Caros acid

Posted by Amitabh Choudhary 7 years, 1 month ago

CBSE > Class 12 > Chemistry

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how can you purify phosphine gas

Posted by Abhinav Adarsh 7 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

O Singh 7 years, 1 month ago

By reacting it with HI

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Aldol condesation

Posted by Abishek K 7 years, 1 month ago

CBSE > Class 12 > Chemistry

0 answers

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What is slow reaction and what is fast reaction

Posted by Raj Pandey 7 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Rohan Singh 7 years, 1 month ago

Slow reaction:- These are the reactions which take place at very slow rate or speed it can take upto 3 to 4 years to complete eg:-rusting of iron Fast reaction:- These are the reaction which take place at very fast or may be in seconds or min. Such as combustion of LPG. That's all may be its helpful

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What are colloids and give their classification with example

Posted by Raj Pandey 7 years, 1 month ago

CBSE > Class 12 > Chemistry

4 answers

Vineet Kumar Gupta 7 years, 1 month ago

Emulsions pH 143

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Vineet Kumar Gupta 7 years, 1 month ago

See page no 134 ncert part 1 class 12 chemistry

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Raj Pandey 7 years, 1 month ago

What do you mean by emulsifying agent define with example

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Raj Pandey 7 years, 1 month ago

What is coagulation and what is the meaning of coagulation power

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2i +hno3-

Posted by Vinayak Shukla 7 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Rohan Singh 7 years, 1 month ago

Its may be 2I+HNO3----------2HI+No3

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How many ethylene diaminetetraacetate molecules are required to make an octahedral Complex with Ca²+ ion?

Posted by Aryan Singh 7 years, 1 month ago

CBSE > Class 12 > Chemistry

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The number of monobromo products obtained from the most symmetrical alkane of molar mass 72 gram/mole is:...........

Posted by Aryan Singh 7 years, 1 month ago

CBSE > Class 12 > Chemistry

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Log 2

Posted by Junaid Rajput 7 years, 1 month ago

CBSE > Class 12 > Chemistry

2 answers

E S 7 years, 1 month ago

0.3010

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Aryan Singh 7 years, 1 month ago

0.3

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Write difference between formaldehyde and acetaldehyde

Posted by Gaurav Rai 7 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Aayush Kaushal 7 years, 1 month ago

Formaldehyde is methanal and acetaldehyde is ethanal

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Convert aniline to phenol

Posted by Aditya Kumar 7 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Shaurya Pratap Singh 7 years, 1 month ago

Reacts with NaNO2+HCL forms diazonium salt and then reacts with NaOH forms phenol

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What is the role of CO in the purification of nickel?

Posted by Manish Raj 7 years, 1 month ago

CBSE > Class 12 > Chemistry

2 answers

Vineet Kumar Gupta 7 years, 1 month ago

So basically it's role is to form a volatile compound with nickel so that extraction could be done

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Vineet Kumar Gupta 7 years, 1 month ago

When nickel is heated with carbon monoxide it forms a volatile complex nickel tetracarbonyl which on further heating at higher temperature decomposes to give pure nickle. Ni+4CO330−350k−→Ni(CO)4450−470k−→−−−−−−−Ni+4CO

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What is physical properties of alcohol

Posted by Swapnil Yadav 7 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Sourabh Sheokand 7 years, 1 month ago

Alcohol are in liquid state at room temperature. Have burning taste. Bad smell .

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??Why black phosphorus is insulator?❓❓? Any one ??

Posted by Harsh Kumar 7 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Vineet Kumar Gupta 7 years, 1 month ago

Tere is two types of black Phosphorus Alpha black and beta black Phosphorus Alpha black has monoclinic or rhombohedral crystal and hence it doesn't conduct electricity whereas beta black consists of conjugated sheet that result in the formation of Franky layers crystals that conduct electricity (graphite like) hence the Alpha black Phosphorus act as insulator where as beta black as conductor hence your question is incomplete

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What is spdf block

Posted by Ashutosh Dixit 7 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Rajat Dhull 7 years, 1 month ago

Nothing but when combined with each other form periodic table.

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Ar-CN + H2O

Posted by Aviral Manihal 7 years, 1 month ago

CBSE > Class 12 > Chemistry

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What is solid stats

Posted by Preeti Kushwaha 7 years, 1 month ago

CBSE > Class 12 > Chemistry

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Phenol to methanol conversion.

Posted by Kam Boj 7 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Shaurya Pratap Singh 7 years, 1 month ago

Reacts with CH3MgBr forms CH4 reacts with Cl2 in presence of sunlight forms methyl chlorine and then reacts with NaOH forms CH3OH methanol

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Trick for doing conversions?

Posted by Aryaman Singh Tomar 7 years, 1 month ago

CBSE > Class 12 > Chemistry

7 answers

Rakshit Negi 7 years, 1 month ago

Voi to puchra hun.. Chemistry se.. Koi sa bhi.. Bdiya sa

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Aryaman Singh Tomar 7 years, 1 month ago

Kis topic se related?

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Rakshit Negi 7 years, 1 month ago

Plz help me too... Can u suggest any chemistry project.. Easy n prbhavshali.. ?

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Rakshit Negi 7 years, 1 month ago

My pleasure... ??

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Aryaman Singh Tomar 7 years, 1 month ago

Yaa i got it..thanku so much..??

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Rakshit Negi 7 years, 1 month ago

U got that? ?

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Rakshit Negi 7 years, 1 month ago

Learn them....only way i know... u can make a simple table(tree type) ... writen in that.... Rxn with this.. gives this.. For every chapter... It Can help u recall them easily... N with practice u will learn them... Automatically?.... Bhot buri english hai.. Sry.. Hope uh undrstand

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Raoult s law

Posted by Ravi Sharma 7 years, 1 month ago

CBSE > Class 12 > Chemistry

1 answers

Vishali Raina 7 years, 1 month ago

According to raoult's law for a solution of two volatile liquids the partial vapour pressure of each component in the solution is directly proportional to its mole fraction

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Calculate the mass of nacl (molar mass= 58.5) to be dissolved in 37.2g of water to lower the freezing point by 2 degree celsius, assuming that NaCl undergoes complete dissociation (kf=1.86)

Posted by Sumath Karde 7 years, 1 month ago

CBSE > Class 12 > Chemistry