रासायनिक आबन्ध और आणविक सरंचना Class 11 Chemistry L4 | CHEMICAL BONDING AND MOLECULAR STRUCTURE

Chemical Bonding - L4

9th Chemistry रासायनिक सूत्र कैसे बनाएं ? Chemical Formula Class 9 Tricks | Writing Chemical Formula

Class 12 Chemistry | Chapter 4 | Chemical Kinetics | Important Questions | CBSE Boards Revision | Part 1

Class 12 Chemistry | Chapter 4 | Chemical Kinetics | Important Questions | CBSE Boards Revision | Part 2

NEET 2020 - Revision In 60 Days | Class 11 Chemical Equilibrium | Quick Revision | NEET Chemistry

These questions are based on the following diagram: In the above figure, the Triangle represents the students who passed in Physics, the Rectangle represents the students who passed in Chemistry and the Circle represents the students who passed in Mathematics in a class. How many students passed in Chemistry but not in Mathematics? 1) 22 2) 11 3) 18 4) 17 5)23

These questions are based on the following diagram: In the above figure, the Triangle represents the students who passed in Physics, the Rectangle represents the students who passed in Chemistry and the Circle represents the students who passed in Mathematics in a class. How many students passed in Mathematics only ? 1)3 2) 5 3) 4 4) 11 5)23

Class 11 NEET 2020 - Revision In 60 Days | Chemical Bonding -Quick Revision | NEET Chemistry | Important Questions

Resonance || Resonating Structures || Resonance hybrid || Drawing OF Resonating Structure For C6H6, O3, CO3-2, CH3COO-, NO2-, NO3-, SO3-2, SO4-2, PO4-3 || Determination OF Bond Order in Compounds showing Resonance || Short trick with Class Illustrations

An organic compound A contains 69.77% carbon, 11.63% hydrogen and the rest is oxygen. The molecular mass of the compounds is 86. It does not reduce Tollen's reagent but forms an addition product with sodium hydrogen sulphite and gives positive idoform test. On vigorous oxidation it gives ethanoic and propanoic acids. Write the possible structure of the compound A (b) Write the chemical tests to distinguish between the following pairs of compounds : (i) Acetophenone and Benzophenone (ii) Ethanal and Propanal