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May 10, 20211 min read

How many vertical columns are there in the Modern Periodic Table?

How many vertical columns are there in the Modern Periodic Table? Answer - In the Modern Periodic Table, there are 18 vertical columns of...

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Vikas Yadav

May 10, 20211 min read

Define groups in periodic table.

Define groups. Answer - The vertical columns in the long form of the Periodic Table are called groups.

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Vikas Yadav

May 10, 20211 min read

What was the drawback of the Law of Octaves?

What was the drawback of the Law of Octaves? Answer - Law of Octaves failed to assign the position to the elements with large atomic...

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Vikas Yadav

May 10, 20211 min read

State Newlands' Law of Octaves.

State Newlands' Law of Octaves. Answer - Newlands' Law of Octaves states that "when elements are arranged in order of increasing atomic...

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Vikas Yadav

May 10, 20211 min read

State Mendeleev's Periodic Law. [CBSE 2019]

State Mendeleev's Periodic Law. [CBSE 2019] Answer - Mendeleev's Periodic Law states that, "The physical and chemical properties of the...

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Vikas Yadav

May 10, 20211 min read

What was Dobereiner's basis of classifying elements?

What was Dobereiner's basis of classifying elements? Answer - According to Dobereiner, elements having similar properties can be arranged...

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Vikas Yadav

Mar 19, 20211 min read

Most Important Questions from Surface Chemistry - CBSE XII

1. Differentiate between adsorption and absorption. 2. Physisorption is reversible while chemisorption is irreversible. Why ? 3. What is...

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Vikas Yadav

Mar 13, 20212 min read

Most important questions from Coordination Compounds - XII CBSE

1. Define Linkage Isomerism. Give an example of linkage isomerism. 2. Define Coordination Isomerism. Give an example of coordination...

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Vikas Yadav

Mar 11, 20212 min read

Most important questions from Alcohol, Phenol and Ethers - XII CBSE

Important questions from Alcohol, Phenol and Ethers 1. Write the structure of the molecule of a compound whose IUPAC name is...

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Vikas Yadav

Feb 11, 20212 min read

Top 10 Question for CBSE Board Exam - 01, Class XII CBSE Chapter – Solution

Top 10 Question for Board Exam - 01 Chapter – Solution 1. Define the following terms molarity, molality and mole fraction. What is the...

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Vikas Yadav

Feb 9, 20211 min read

Top 10 Question for CBSE Board Exam - 02 Chapter - Solid State

1. Which stoichiometric defect does not change the density of the crystal? 2. What type of stoichiometric defect is shown by AgCl? 3....

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Vikas Yadav

Feb 8, 20212 min read

Top 10 Question for Board Exam - 01 Chapter - Solid State

Top 10 Question for Board Exam - 01 Chapter - Solid State 1. “Crystalline solids are anisotropic in nature.” What does this statement...

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Vikas Yadav

Jan 25, 20210 min read

Best study material for Class X CBSE for Mathematics

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Vikas Yadav

Jan 25, 20211 min read

Best study material for Class X CBSE for Social Science

Get here the CBSE Study Material for Class 10 Social Science subject. This study material has been specially prepared for the upcoming...

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Vikas Yadav

Jan 25, 20211 min read

Best study material for Class X CBSE for Science

In CBSE Class 10, Science is one of the most important subjects especially for those students who want to pursue this subject in their...

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Vikas Yadav

Jan 23, 20211 min read

Class XII, CBSE, Chemistry Sample Paper 2021 - by Educart

https://t.me/gurucoolclasses/99 - Sample Paper https://t.me/gurucoolclasses/100 - Solution

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Class 12 Chemistry Standard XII 11 Years CBSE Champion Chapterwise Topicwise Questions and Solutions

Vikas Yadav

Jan 21, 20211 min read

Class 12 Chemistry Standard XII 11 Years CBSE Champion Chapterwise Topicwise Questions and Solutions

Class 12 Chemistry Standard XII 11 Years CBSE Champion Chapterwise Topicwise Questions and Solutions NCERT( 2007 to 2017 ) Useful for IIT...

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Vikas Yadav

Jan 5, 20211 min read

CBSE Board, Sample papers of Mathematics - https://t.me/gurucoolclasses/62

Oswaal Publications https://t.me/gurucoolclasses/62

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Vikas Yadav

Jan 5, 20211 min read

CBSE Board, Sample papers of Mathematics - https://t.me/gurucoolclasses/61

Oswaal Publications https://t.me/gurucoolclasses/61

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Vikas Yadav

Jan 5, 20211 min read

CBSE Board, Sample papers of Chemistry - https://t.me/gurucoolclasses/60

Oswaal Publications https://t.me/gurucoolclasses/60

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