Preposition Basic to Advance PART - 1 English Grammar For All Competitive Exams By Nikhil sir

Sentence : Type & Parts || Day 1 || Class 10 English Grammar || UP Board Exam 2022

In the descending order of a group in the periodic table which of the following would be true 1) All the atoms have the same number of valence electrons 2) Gram atomic volume increases 3) Electronegativity decreases 4) Metallic character decrease and basic nature of their oxides decreases Select the correct answer using the codes

Amines are derivatives of ammonia and are classified as 1^(@), 2^(@) , and 3^(@) , Primary and secondary (but not teritiary amines) form intermolecular hydrogen bonds and thus they boil at highter temperatures than expected. Like ammonia, all amines are basic, although they differ in their basic nature. As amines are considered as derivatives of ammonia, quaternary ammonium salts are considered as derivatives of ammonium salts. Only the quaternary ammonium salts can shown optical activity. When nitrogen is bounded to three different groups