Chirag

Hello! I am Chirag, author of CG's Chemistry Solutions. I am a Chemistry Teacher, for JEE and NEET, worked with some of the reputed Ed-Tech companies, having 5+ years of experience in online and offline teaching and doubt solving.

How can you determine limiting molar conductivity for strong and weak electrolyte?

Physical Chemistry, Class 11 and 12 / /

Molar conductivity increases with increase in volume and when volume increases the concentration of solution decreases (because no.of ions in the solution decrease) which makes the solution dilute.   On dilution when concentration approaches zero, the molar conductivity is known as limiting molar conductivity.   In case of strong electrolytes the ionisation is easy and […]

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Equal weights of ethane and hydrogen are mixed in an empty vessel at 25 degree celsius. Calculate the fraction of the total pressure exerted by hydrogen.

Physical Chemistry, Class 11 and 12 / /

Let x g of each gas is mixed.   Molar mass of ethane = 30 g/mol   Molar mass of hydrogen = 2 g/mol   Mole = Given mass/Molar mass   Moles of ethane = (x/30) mol   Moles of hydrogen = (x/2) mol     So, the fraction of total pressure exerted by hydrogen

Equal weights of ethane and hydrogen are mixed in an empty vessel at 25 degree celsius. Calculate the fraction of the total pressure exerted by hydrogen. Read More »

Distinguish b/w ethyl amine and diethyl amine?

Organic Chemistry, Class 11 and 12 / /

Amine is a type of compound that is derived from ammonia, i.e., NH3. We can simply say, that amines are derivatives of ammonia. We study about amines in Organic Chemistry, and they are basically classified as functional groups or organic nitrogen compounds that contain a nitrogen atom with a lone pair. Generally, in amines, hydrogen

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Thermodynamics: A Basic Introduction

Physical Chemistry, Class 11 and 12 / /

Thermodynamics is the study of flow of heat between system and surrounding. It deals with  energy changes accompanying all types of physical and chemical processes. Thermodynamics  helps to lay down the criteria for predicting feasibility or spontaneity of a process, including a chemical reaction, under a given set of conditions. It also helps to determine

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What is the correct order of bond angle for O-P-X in the given molecules?

Inorganic Chemistry, Class 11 and 12 / /

  Solution: Bond angle is inversely proportional to electronegativity of substituents.   i.e., Electronegativity of side atom increase then the bond angle (X-P-X) decreases.   So, X-P-X or F-P-F bond angle is least in POF3. That’s why the O-P-F is maximum.     Hence, the correct order of bond angle for O-P-X in the given molecules

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Arrange the following in acidic character

Organic Chemistry, Class 11 and 12 / /

What is acidic character? Acidic character is the ability to or a tendency to lose a proton. Carboxylic acid is highly acidic in nature. Factors responsible for acidic character (acidity) Inductive effect Mesomeric effect Hyperconjugation effect Ortho effect (especially for benzoic acid) Dependency of acidity on the above effects Acidity is directly proportional to -I, -M,

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Benzamide is less easily hydrolysed than methyl benzoate. Why?

Organic Chemistry, Class 11 and 12 / /

Pro Tip! Benzamide is less easily hydrolysed because of difference of positive charge density on carbonyl carbon. In hydrolysis reaction, hydroxyl ion (OH–) attacks on the carbonyl carbon, so we need to check out the positive charge density on carbonyl carbon. Solution We know that the nitrogen is less electronegative as compared to oxygen. So,

Benzamide is less easily hydrolysed than methyl benzoate. Why? Read More »

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