CBSE - Neutron Classes

Assertion-Reason Questions on Chemical Kinetics – Chapter 4 CBSE Class 12 Chemistry

Leave a Comment / CBSE, Chemistry, Class 12 / By manishmavi

Assertion-Reason Questions on Chemical Kinetics Questions : In the following questions, two statements are given—one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below: (a) Both Assertion (A) and Reason (R) are correct statements, and Reason (R) …

Assertion-Reason Questions on Chemical Kinetics – Chapter 4 CBSE Class 12 Chemistry Read More »

Assertion-Reason Questions on Amines – Chapter 13 CBSE Class 12 Chemistry

Leave a Comment / CBSE, Chemistry, Class 12 / By manishmavi

Assertion-Reason Questions on Amines Questions : In the following questions, two statements are given—one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below: (a) Both Assertion (A) and Reason (R) are correct statements, and Reason (R) is …

Assertion-Reason Questions on Amines – Chapter 13 CBSE Class 12 Chemistry Read More »

Case Study Question 3 on Amines – Chapter 13 CBSE Class 12 Chemistry

Leave a Comment / CBSE, Chemistry, Class 12 / By manishmavi

Question : Amines have a lone pair of electrons on nitrogen atom due to which they behave as Lewis base. Larger the value of Kbor smaller the value of pKbstronger is the base. Amines are more basic than alcohols, ethers, esters, etc. The basic character of aliphatic amines should increase with the increase of alkyl …

Case Study Question 3 on Amines – Chapter 13 CBSE Class 12 Chemistry Read More »

Case Study Question 2 on Amines – Chapter 13 CBSE Class 12 Chemistry

1 Comment / CBSE, Chemistry, Class 12 / By manishmavi

Case Study Question on Amines – Chapter 13 CBSE Class 12 Chemistry Question : The conversion of primary amines into diazonium salts is known as diazotization. Arene diazonium salts are generally colourless crystalline solids highly soluble in water. These salts are more stable than aliphatic diazonium salts and undergo a number of substitution reactions due …

Case Study Question 2 on Amines – Chapter 13 CBSE Class 12 Chemistry Read More »

Case Study Question 3 on d & f Block – Chapter 8 CBSE Class 12 Chemistry

Leave a Comment / CBSE, Chemistry, Class 12 / By manishmavi

Case Study Question 3 on d & f Block Read the passage given below and answer the following questions: The d block elements are the 40 elements contained in the four rows of ten columns (3-12) in the periodic table. As all the d block elements are metallic, the term d-block metals is synonymous. This …

Case Study Question 3 on d & f Block – Chapter 8 CBSE Class 12 Chemistry Read More »

Case Study Question 2 on d & f Block – Chapter 8 CBSE Class 12 Chemistry

Leave a Comment / CBSE, Chemistry, Class 12 / By manishmavi

Case Study Question 2 on d & f Block Read the passage given below and answer the following questions: The transition metals when exposed to oxygen at low and intermediate temperatures form thin, protective oxide films of up to some thousands of Angstroms in thickness. Transition metal oxides lie between the extremes of ionic and …

Case Study Question 2 on d & f Block – Chapter 8 CBSE Class 12 Chemistry Read More »

Case Study Question 1 on d & f Block – Chapter 8 CBSE Class 12 Chemistry

Leave a Comment / CBSE, Chemistry, Class 12 / By manishmavi

Case Study Question on d & f Block Read the passage given below and answer the following questions: Within the 3d series, manganese exhibits oxidation states in aqueous solution from +2 to +7, ranging from Mn2+(aq) to MnO−4 (aq). Likewise, iron forms both Fe2+(aq) and Fe3+(aq) as well as the FeO2−4 ion. Cr and Mn …

Case Study Question 1 on d & f Block – Chapter 8 CBSE Class 12 Chemistry Read More »