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What volume of oxygen o2 is soluble in 100 cm3 of water at 293K?

Posted by Dharshika As 7 years, 8 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

The arrangement of ions in a solid is best investigated by which means

Posted by Rishika Singh 7 years, 8 months ago

CBSE > Class 12 > Chemistry

3 answers

Rahul Chauhan 7 years, 8 months ago

Practise ncert examples and cbse imp question from cbseguide only bc i had given che exam this year.now ur choice .....best of luck

Rahul Chauhan 7 years, 8 months ago

Imp topic: type of solids, packing efficiency, density formulae,defects , f centre only

Rahul Chauhan 7 years, 8 months ago

Is ch me jo imp h bs us pr focus kro

ANSWER

What are crystalline solid

Posted by Phisic Master 7 years, 8 months ago

CBSE > Class 12 > Chemistry

3 answers

Uday Pratap 7 years, 8 months ago

Crystalline solids are those solids which have regular arrangement of particals. These are long range order solid.

Ash Thunderbird ✔ 7 years, 8 months ago

Solids which have an arranged structure

Phisic Master 7 years, 8 months ago

Solid

ANSWER

Chemistry mein equations kese yaad karein

Posted by Reetika Kapoor 7 years, 8 months ago

CBSE > Class 12 > Chemistry

1 answers

Pranjali Mahajan 7 years, 8 months ago

Just write them and practice

ANSWER

Uses of crystalline and amorphous solid?

Posted by Vini Phogat 7 years, 8 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Why some substance exist as solid

Posted by Vini Phogat 7 years, 8 months ago

CBSE > Class 12 > Chemistry

1 answers

Pranjali Mahajan 7 years, 8 months ago

Becoz their intermolecular forces r quite strong

ANSWER

Express the relationship between radius and the edge length in the FCC unit cell

Posted by Ritu Raj Singh 7 years, 8 months ago

CBSE > Class 12 > Chemistry

1 answers

Uday Pratap 7 years, 8 months ago

a=2(square root)2r

ANSWER

Which colligative property is suitable for measure molar mass of solutes ?

Posted by Neeraj Goswami 7 years, 8 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Swarts reaction

Posted by Vishnu Jaiswal 7 years, 8 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Chemistry me reaction kaise yaad kren

Posted by Keshav Rana 7 years, 8 months ago

CBSE > Class 12 > Chemistry

1 answers

Rishabh Sahu 7 years, 8 months ago

For organic reactions whenever you read a reaction try to associate it with known mechanism. For memory based reactions write the reactions with chemical formulae and try to write the impact of common names of reactants and products . Their colour and physical state which may be important characteristics are given if they are to be remembered so also write them . When you revise see the reactants and try to recall which were the products or which products should be formed according to given reaction conditions. When you have practiced by writing try to practice questions based on reactions from different sources ,archive ,NCERT ,NCERT exemplar etc.

ANSWER

what is darzen reaction

Posted by Akhil Bohra 7 years, 8 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

how make benzene from phenol

Posted by Neha Mahour 7 years, 8 months ago

CBSE > Class 12 > Chemistry

1 answers

Atishay Jain 7 years, 8 months ago

Add zinc dust to phenol..... Zinc will remove oxygen and will form ZnO and benzene

ANSWER

out of molarit morality and mole fraction which is dimensionless

Posted by Krashika Patidar 7 years, 8 months ago

CBSE > Class 12 > Chemistry

2 answers

Rishabh Sahu 7 years, 8 months ago

But molarity and molality have dimensions which can be deduced from their definitions mole per litre for molarity mole per kg for molality.

Rishabh Sahu 7 years, 8 months ago

Mole fraction is dimensionless the units of mole in numerator and denominator get cancelled.

ANSWER

Why the each half cell of galvanic cell consists of a metallic rod?

Posted by Tushar Yadav 7 years, 8 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Cleavage property

Posted by Deepa Roy 7 years, 8 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

What is isotropy in crystalline solid

Posted by Aman Tirkey 7 years, 8 months ago

CBSE > Class 12 > Chemistry

2 answers

Niraj Kumar 7 years, 8 months ago

crystalline solid are in Anistropic in nature. because the physical quantity such as refractive index,resistance,etc have differnt value in diffdrent direction

Shreya Verma 7 years, 8 months ago

Crystalline solids which have isotropic nature , shows different values of their physical quantities when calculated along different directions in the same crystal.

ANSWER

Alcohols r prepared only by reduction or by oxidation also

Posted by Isha Ahuja 7 years, 8 months ago

CBSE > Class 12 > Chemistry

1 answers

Rahul Poonia 7 years, 8 months ago

By reduction only

ANSWER

What are the coordination numbers of simple cubic,bcc, end centred and fcc

Posted by Shubham Rai 7 years, 8 months ago

CBSE > Class 12 > Chemistry

1 answers

Rochie Joshi 7 years, 8 months ago

.

ANSWER

Calculate the moles of methanol in 5 litres of its 2m solution if the density of the solution is 0.981 kg /l

Posted by Jatin Jund 7 years, 8 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Guys how was it JEE EXAM

Posted by Yashveer Yadav 7 years, 8 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

What is the chemical reaction of fe +hcl

Posted by Barsha Gupta 7 years, 8 months ago

CBSE > Class 12 > Chemistry

1 answers

Abhaydeep Singh 7 years, 8 months ago

It is a single replacement reaction ...and fe+hcl gives fecl3 and h2 ,...

ANSWER

Lead2 sulphide crystals has NACL structure . What is density?the edge length of unit cell of pb5 is 500 picometer ( atomic mass of pb 2072 and s 32

Posted by Amrinder Singh 7 years, 8 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Write the structure and I.U.P.A.C. name of all possible isomers of C5H11Br

Posted by Vikash Jat 7 years, 8 months ago

CBSE > Class 12 > Chemistry

2 answers

Priyansh Gairola 7 years, 8 months ago

Brother possible isomer is 1st name 1-bromo 2-methyl -butane. 2nd name - . 1bromo 2.2 dimethyl propane they are plso example of position isomer

Anjali Kumari 7 years, 8 months ago

Not sure but i think postion isomers...!!

ANSWER

All the run of alcohol, phenol, ether

Posted by Jacqueline Mary Martin 7 years, 8 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

We know that similar charge repel each other but what happened in nucleus there are no. Of positive charges

Posted by Parwez Alam 7 years, 8 months ago

CBSE > Class 12 > Chemistry

1 answers

Sanjeev Prajapati 7 years, 8 months ago

Because protons are bounded by a strong nuclear forces.

ANSWER

What is anealing

Posted by Nikhil Kumar 7 years, 8 months ago

CBSE > Class 12 > Chemistry

1 answers

Unknown Student 7 years, 8 months ago

Heating a body and then cooling it slowly is called annealing.

ANSWER

How metals have low melting point are separted folrom their impurties

Posted by Jaspreet Kaur 7 years, 8 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Write enzymes work

Posted by Ankit Jaiswal 7 years, 8 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

What is the method of white washing of the wall

Posted by Krrish Kumar 7 years, 8 months ago

CBSE > Class 12 > Chemistry

0 answers

ANSWER

Z of CCP

Posted by Dhruuv Dodia 7 years, 8 months ago

CBSE > Class 12 > Chemistry

1 answers

Qwerty Board 7 years, 8 months ago

4 .

ANSWER

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