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Jatin Kumar 3 years, 7 months ago

RCOCl

ANSWER

can any of you share your organic chemistry model questions for practice? (or) share me a best website to practice oraganic chemistry. with love M.Dhivyasree?

Posted by Dhivyasree Mohan 3 years, 7 months ago

CBSE > Class 12 > Chemistry

2 answers

Dhivyasree Mohan 3 years, 7 months ago

Yes..bt in that too some doubts are there...to clear those doubts only i'm asking for some websites

Vaibhav Goswami 3 years, 7 months ago

First tell me have u completed chapterwise questions?

ANSWER

Arrang the following in decreasing order F3CCH2OH (CH3)3CCH2OH FCH2CH2CH2OH

Posted by Shivam Jadhav 3 years, 7 months ago

CBSE > Class 12 > Chemistry

1 answers

Anjali Kumari??? 3 years, 7 months ago

Of what?

ANSWER

Where to study aldehydes,ketones and carboxylic acids?

Posted by Gaurav Bagga 3 years, 7 months ago

CBSE > Class 12 > Chemistry

2 answers

Anurag Saral 3 years, 6 months ago

ncert obviously...

Shreya Jain 3 years, 7 months ago

From ncert... Or u can use the modern abc book

ANSWER

Calculate the mass of Na2CO3 required to prepare 500ml solution of 0.1M Na2CO3

Posted by Abdul Razique 3 years, 7 months ago

CBSE > Class 12 > Chemistry

1 answers

Divyani Pandey 3 years, 7 months ago

Molarity=(mass of Na2CO3×1000)÷molecular (mass of Na2CO3×Volume in ml) u can easily calculate mass from this formula

ANSWER

Formula of density

Posted by Uzma Patel 3 years, 7 months ago

CBSE > Class 12 > Chemistry

3 answers

Anurag Saral 3 years, 7 months ago

d=zM/a^3Na Na=6.022*10^23=Avogadro No.

Jatin Kumar 3 years, 7 months ago

M/V

Keshav Garg 3 years, 7 months ago

Mass/vol.

ANSWER

Jai Hind Dosto ??

Posted by ?Sᴀʀᴋᴀʀ? ▄︻┻┳═一 ? Ꭰꭿꭰꭰꮍ ? 3 years, 7 months ago

CBSE > Class 12 > Chemistry

2 answers

Tec Om 3 years, 7 months ago

Jai hind

5Thank You

Royal Thakur ? 3 years, 7 months ago

5Thank You

ANSWER

Concentrated nitric acid used in laboratory work is 68% nitric acid by mass in aqueous solution. What should be the molarity of such a sample of the acid if the density of the solution is 1.504 g mL¹

Posted by Suman Deep 3 years, 7 months ago

CBSE > Class 12 > Chemistry

1 answers

Vaibhav Goswami 3 years, 7 months ago

16.23M

ANSWER

Best reference book of chemistry for a weak student?

Posted by Class 12 3 years, 7 months ago

CBSE > Class 12 > Chemistry

4 answers

Umesh Sharma 3 years, 6 months ago

modern abc of chemistry and ncert

Abhi Yaduvanshi 3 years, 7 months ago

Ncert is best

Anurag Saral 3 years, 7 months ago

i think ncert only is enough for weak students

54 Arjal Kumari 11 'A' 3 years, 7 months ago

Modern abc

4Thank You

ANSWER

acetylation of nh2 group is done in aniline before preparing its ortho and para compounds

Posted by Srinithi Ganesh 3 years, 7 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

How will you prepare the sec-Butyl bromide from an alcohol

Posted by Rini Patel 3 years, 7 months ago

CBSE > Class 12 > Chemistry

1 answers

Abhi Yaduvanshi 3 years, 7 months ago

CH3-CH(OH)CH2-CH3 + HBR gives CH3-CH(BR)CH2CH3 ( sec- butyl alcohol react with HBr to form sec-butyl bromide)

ANSWER

What is the structure of face centered unit cell?

Posted by Isha Antil 3 years, 7 months ago

CBSE > Class 12 > Chemistry

1 answers

Bhanvi Chauhan 3 years, 7 months ago

The structure of face centered unit cell is a cube like structure in which constituent particals on each face of cube in addition to constituent particals at its each corner

ANSWER

(i) Sodium dicyanidourate(I) (ii)Tetraammine chloridonitrito-N-platinum(IV) sulphate

Posted by Mr. Badmash 3 years, 7 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Use the edit icon to pin, add or delete clips.

Posted by Mr. Badmash 3 years, 7 months ago

CBSE > Class 12 > Chemistry

1 answers

Mr. Badmash 3 years, 7 months ago

Sorry it's by mistake

ANSWER

Does fire have mass.if yes or no prove it..

Posted by Anshu Pathak 3 years, 7 months ago

CBSE > Class 12 > Chemistry

2 answers

Saloni Kaushik 3 years, 7 months ago

I think it has mass. Because it is a form of energy and it should satisfy famous equation E=mc^2 so mass cant be zero since it has energy

Xian Wu 3 years, 7 months ago

The “fire” part (heat and light) haveno mass, and the burning material (solid to gas) does have mass.

ANSWER

What is the molarity of sulphuric acid before discharge?

Posted by Noddy Dev 3 years, 7 months ago

CBSE > Class 12 > Chemistry

1 answers

Sia ? 3 years, 7 months ago

During the discharge of a lead storage battery, the density of sulphuric acid fell from 1.294gmL-1 to 1.139gmL-. Sulphuric acid of density 1.294gmL-1 is 39% by weight and that of density 1.139gmL-1 is 20% by weight. The battery hold 3.5 litre of acied and discharge.

ANSWER

Jab

Posted by Shivam Kumar 3 years, 7 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Vapour pressure does not depends upon volume of liquid or shape, size and volume of container. ? How, plz help me It is making me confused

Posted by Satyam Satyam 3 years, 7 months ago

CBSE > Class 12 > Chemistry

1 answers

Sia ? 3 years, 7 months ago

Vapor pressure does not depend on surface area because it is derived from the thermodynamic equilibrium between the liquid and gas phases of a substance. The closer the vapor pressure is to atmospheric pressure, the closer that substance is to boiling. At its boiling point, vapor pressure equals atmospheric pressure and the molecules that comprise the liquid now have enough thermal energy to overcome the intermolecular forces that are maintaining it in a condensed phase. So it might help to think about how container geometry does not affect the boiling point of a liquid; the same reasons are true for why it does not affect the vapor pressure.

ANSWER

How to score good marks ain chemistry in the all topics and specially that organic chemistry ..and elements

Posted by Sahib Singh 3 years, 7 months ago

CBSE > Class 12 > Chemistry

2 answers

Kuldeep Nagar 3 years, 7 months ago

Practice is must for this

Dhivyasree Mohan 3 years, 7 months ago

Practice daily 10-15 equations...u will get thorough in organic chemistry

ANSWER

Why osmotic pressure is considered best colligative property to determine molecular mass of polymer?

Posted by Hitesh Jindal 3 years, 7 months ago

CBSE > Class 12 > Chemistry

2 answers

Shivani Thakur 3 years, 7 months ago

It give large value for a small amount of mass.

Hey Kriti 3 years, 7 months ago

because it contains concentration in terms of molarity

ANSWER

What is the formula of a compound in which the element of y forms ccp lattice and atoms of x occupy 2/3rd of octahedral voids?

Posted by Lovnika Sihag 3 years, 7 months ago

CBSE > Class 12 > Chemistry

2 answers

Devil ? 3 years, 7 months ago

X2Y3

Hey Kriti 3 years, 7 months ago

No. Of atoms present in element Y = a No. Of octahedral voids = a No. Of atoms present in X = a*⅔ Ratio = x:y = a*⅔*3:a*3 = 2:3 The formula of the compound = x2y3.

ANSWER

On the basis of CFT, write electronic configuration of d4 ion if deltanot greater than pairing energy

Posted by Kavya S 3 years, 7 months ago

CBSE > Class 12 > Chemistry

1 answers

Nidhi Bharti 3 years, 7 months ago

T2g4

ANSWER

Transition elements show magnetic moment due to spin and orbital motion of electrons. Which of the following metallic ions have almost same spin only magnetic moment? (i)Co³+ (ii)Cr²+ (iii)Mn²+ (iv)Cr³+

Posted by Shivam Agrawal 3 years, 7 months ago

CBSE > Class 12 > Chemistry

1 answers

Kavya S 3 years, 7 months ago

Co3+ - 4.8, cr2+ - 4.8 , Mn2+ - 5.9, Cr3+ - 3.7.So,Co3+ and Cr2+ have same magnetic moment

ANSWER

Determination of formula of the compound?

Posted by Udit Jayapuria 3 years, 7 months ago

CBSE > Class 12 > Chemistry

1 answers

Sia ? 3 years, 7 months ago

Chemical formulas tell you how many atoms of each element are in a compound, and empirical formulas tell you the simplest or most reduced ratio of elements in a compound. If a compound's chemical formula cannot be reduced any more, then the empirical formula is the same as the chemical formula.

ANSWER

How to prepare for school viva... For physics & Chemistry...

Posted by Shivi ?? 3 years, 7 months ago

CBSE > Class 12 > Chemistry

4 answers

Mr. Badmash 3 years, 7 months ago

You can prepare one chapter by own. And practical knowledge is must . Because they first ask from practical then from theory if you can't answer properly

Dhruv .. 3 years, 7 months ago

Just offer something fantasy to your external?

3Thank You

Lakshya Sharma 3 years, 7 months ago

Simple bro do 1 chapter . They will ask from that chapter...

Kavya S 3 years, 7 months ago

In my scl for practicals questions are from, 1.thorough with the experiment 2.requirements needed 3.reason for the color and observations,etc U should be thorough in each experiment in and out