Entrance Exam > NEET-UG > Chemistry | CBSE Board | Homework Help

Ask questions which are clear, concise and easy to understand.

Ask Question

An element forms two oxides having percentage of Eis 50% and 40% if formula of I oxide is EO, then find formula of IInd oxide.

Posted by Abhishek Sahu 4 years, 11 months ago

Entrance Exam > NEET-UG > Chemistry

1 answers

Anusha Malasani 4 years, 10 months ago

E2O3

1Thank You

ANSWER

How to study cemistry?(some tricks or solutions in easy way)

Posted by Samina Khan 4 years, 11 months ago

Entrance Exam > NEET-UG > Chemistry

1 answers

Aditya Chauhan 4 years, 9 months ago

First finish phusical portion with short summary and learning formulas Then finish organic Than inorganic after completing the theory portions go on numericals objective one with the book you are doing for neet preperation

1Thank You

ANSWER

What is mole

Posted by Bodapati Ramesh 4 years, 11 months ago

Entrance Exam > NEET-UG > Chemistry

2 answers

Yogita Ingle 4 years, 11 months ago

Atoms and molecules are too small to count. To solve this problem their numbers are expressed in terms of Avogadro’s number (N_A = 6.023 10²³). Mole is the number equal to Avogadro’s number just like a dozen is equal to 12, a century means 100, a score means = 20.

Mole can be defined as a unit which represents 6.023 x10²³ particles of same matter.

1Thank You

Bodapati Ramesh 4 years, 11 months ago

6.022×10"23

0Thank You

ANSWER

Chelate ligand and ambidendate ligand

Posted by Ghanshyam Singh Rawat 4 years, 11 months ago

Entrance Exam > NEET-UG > Chemistry

1 answers

Ankur Sonar 4 years, 11 months ago

Chelate ligand= forming chelating complexes Ambidentate ligand=which act as ambidient in nature

0Thank You

ANSWER

What is primary valency in coordination compounds

Posted by Ghanshyam Singh Rawat 4 years, 11 months ago

Entrance Exam > NEET-UG > Chemistry

2 answers

Ankur Sonar 4 years, 11 months ago

Oxidation state of the compound

0Thank You

Himanshu Bansal 4 years, 11 months ago

The central metal or the metal atoms in coordination compounds show two types of valency. They are the primary and secondary valency. The primary valency relates to the oxidation state and the secondary valency relates to the coordinate number. The number of secondary valences is fixed for every metal atom.

1Thank You

ANSWER

Oxidation number of sulphur in KAl(SO4)2.12H2O

Posted by Amit Ranjan 5 years ago

Entrance Exam > NEET-UG > Chemistry

0 answers

ANSWER

what is the configuration sodium and potassium

Posted by Aasir Naved 5 years ago

Entrance Exam > NEET-UG > Chemistry

1 answers

Sanju Gm 4 years, 3 months ago

Sodium- [Ne] 3s¹ Potassium- [Ar] 4s¹

0Thank You

ANSWER

Ncert all question solution

Posted by Mohammed Salamuddin 5 years ago

Entrance Exam > NEET-UG > Chemistry

0 answers

ANSWER

Define polymers

Posted by Rohit Holiday 5 years ago

Entrance Exam > NEET-UG > Chemistry

1 answers

Himanshu Kumar 4 years ago

Polymer is long chain which are made of a small part monomer

1Thank You

ANSWER

Ethen_2_ol and ethanal are which type of isomers

Posted by Areesha Rizwan 5 years, 1 month ago

Entrance Exam > NEET-UG > Chemistry

0 answers

ANSWER

Potash alum is double salt of?

Posted by Himanshu Sharma 5 years, 1 month ago

Entrance Exam > NEET-UG > Chemistry

2 answers

Himanshu Kumar 4 years ago

Al2(So4)3 K2 (So4).24H2O

1Thank You

Areesha Rizwan 5 years, 1 month ago

Aluminium sulphate and potassium sulphate

2Thank You

ANSWER

How to find shape of the compounds

Posted by Shraddha Deshmukh 5 years, 1 month ago

Entrance Exam > NEET-UG > Chemistry

1 answers

Aditya Chauhan 4 years, 9 months ago

On the bases of no. Of lone pair and bond pair It is Only applicable for covalent bonded compounds For example 3,2 is T shaped

0Thank You

ANSWER

state the law of multiple proportion

Posted by Rais Ahmed 5 years, 2 months ago

Entrance Exam > NEET-UG > Chemistry

1 answers

Sanju Gm 4 years, 3 months ago

the law of multiple proportions states that if two elements form more than one compound between them, then the ratios of the masses of the second element which combine with a fixed mass of the first element will always be ratios of small whole numbers.

0Thank You

ANSWER

Significance of coordination Compounds

Posted by Hanmant Bajgire 5 years, 2 months ago

Entrance Exam > NEET-UG > Chemistry

0 answers

ANSWER

How many halogen group

Posted by S A A 5 years, 2 months ago

Entrance Exam > NEET-UG > Chemistry

4 answers

Karan Deka 5 years, 1 month ago

In group no 17 . This are all halogen element

0Thank You

Juvairiya Jalwa 5 years, 1 month ago

17 group

1Thank You

Mohammed Sameer Sameer 5 years, 1 month ago

0Thank You

Harsh Pratap Singh 5 years, 2 months ago

0Thank You

ANSWER

Maximum no.of liner atoms in propyne molecule

Posted by Shaik Sadiya 5 years, 2 months ago

Entrance Exam > NEET-UG > Chemistry

1 answers

Shaik Sadiya 5 years, 2 months ago

1Thank You

ANSWER

Mechanism of hoffmann's ammonolysis

Posted by Ayushi Piparsaniya 5 years, 3 months ago

Entrance Exam > NEET-UG > Chemistry

0 answers

ANSWER

What is peptization

Posted by Tushar Gupta 5 years, 3 months ago

Entrance Exam > NEET-UG > Chemistry

2 answers

Mehta Khushal 5 years, 2 months ago

The settling down of colloidal particles is known as peptization

1Thank You

Nihal Ahmad Chaudhary 5 years, 3 months ago

peptization is a process of making colloidal sol

0Thank You

ANSWER

Calculate the welvelength ..where 100 v

Posted by Afsana Afrin 5 years, 3 months ago

Entrance Exam > NEET-UG > Chemistry

0 answers

ANSWER

(i) calculate the number of electrons which will together weight one gram. (ii) calculate the mass and charge of one mole of electron

Posted by Kevin Shah 5 years, 3 months ago

Entrance Exam > NEET-UG > Chemistry

1 answers

Himanshu Kumar 4 years ago

(1)no.of electron =1g/9.1×10 ka power 28

1Thank You

ANSWER

What is matter

Posted by Aryan Satpute 5 years, 3 months ago

Entrance Exam > NEET-UG > Chemistry

2 answers

Amaan Ansari 5 years, 1 month ago

Anything which have mass and occupie some space is known as matter

1Thank You

Aryan Satpute 5 years, 3 months ago

Matter is anything that occupy by space and has mass

3Thank You

ANSWER

Can we store clorine in nickel Vessel

Posted by Indu Thakur 5 years, 3 months ago

Entrance Exam > NEET-UG > Chemistry

0 answers

ANSWER

What are alkali metas

Posted by Aryan Satpute 5 years, 4 months ago

Entrance Exam > NEET-UG > Chemistry

1 answers

Yogender Sharma 5 years, 4 months ago

the metals which contains 1 electron in their outermost cell

2Thank You

ANSWER

Why is francium is radioactive?

Posted by Aryan Satpute 5 years, 4 months ago

Entrance Exam > NEET-UG > Chemistry

2 answers

Aryan Satpute 5 years, 3 months ago

Thanks

0Thank You

Yogender Sharma 5 years, 4 months ago

because it emit radioactive rays

0Thank You

ANSWER

is emf is intensive property ? if yes ,how

Posted by Yogender Sharma 5 years, 4 months ago

Entrance Exam > NEET-UG > Chemistry

0 answers

ANSWER

Sir kindly inform me whether solid state has been included in the neet syllabus 2020???

Posted by Brock Lesnar 5 years, 4 months ago

Entrance Exam > NEET-UG > Chemistry

2 answers

Sarthak Tripathi 5 years, 4 months ago

https://drive.google.com/file/d/1yDAiepOQWqULKPZeVFhpa2K-eEtViWDB/view?usp=drivesdk

1Thank You

Divyank Darshi 5 years, 4 months ago

Yes

5Thank You

ANSWER

What chemical bonding

Posted by Narendra Singh 5 years, 4 months ago

Entrance Exam > NEET-UG > Chemistry

1 answers

Dr. Rahul 5 years, 4 months ago

Bond between chemical substances

1Thank You

ANSWER

The atomic number of Na is 11 and Cl is,17 Na and Cl combine together forming Nacl in the reaction

Posted by Sakshi Gera 5 years, 4 months ago

Entrance Exam > NEET-UG > Chemistry

2 answers

Bharti Hooda 5 years, 2 months ago

Bcoz they form ionic bond in which Na(2,8,1) give 1 electron to Cl(2,8,7) and complete its octate and after gaining 1 electron Cl octate also completed

1Thank You

Mehta Khushal 5 years, 2 months ago

Question is incomplete

1Thank You

ANSWER

Write the possible isomers of monochloroderivatives of 2, 3-dimethylbutane and write their IUPAC names

Posted by Shakil Afreen 5 years, 5 months ago

Entrance Exam > NEET-UG > Chemistry