The reactions in which a reagent completely adds to a reactant without the removal of small molecules are called additions. E.g. addition of hydrogen (hydrogenation) in the presence of catalysts like palladium or nickel, to unsaturated hydrocarbons yields saturated hydrocarbons. The reaction shown is commonly used in the hydrogenation of vegetable oils(that are unsaturated compounds) using a nickel catalyst.
In some molecules the reaction of addition occur rapidly. For eg; adding either chlorine or bromine to alkene. Likewise HCl, HBr etc. also add rapidly across the double bond.
Some Facts:
Which of the following are correct : (a) Saturated fatty acids which are generally present in animal fats are harmful for health. (b) The reactions in which a reagent completely adds to a reactant without the removal of small molecules are called additions. | |||
Right Option : C | |||
View Explanation |
A ____________________________ is that substance which alters the rate of a reaction without being consumed in the reaction. | |||
Right Option : B | |||
View Explanation |
Addition of ________________________ in the presence of catalysts like palladium or nickel, to unsaturated hydrocarbons yields saturated hydrocarbons. | |||
Right Option : B | |||
View Explanation |
Abhyas Methodology is very good. It is based on according to student and each child manages accordingly to its properly. Methodology has improved the abilities of students to shine them in future.
It was good as the experience because as we had come here we had been improved in a such envirnment created here.Extra is taught which is beneficial for future.
It was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
A marvelous experience with Abhyas. I am glad to share that my ward has achieved more than enough at the Ambala ABHYAS centre. Years have passed on and more and more he has gained. May the centre flourish and develop day by day by the grace of God.
My experience with Abhyas is very good. I have learnt many things here like vedic maths and reasoning also. Teachers here first take our doubts and then there are assignments to verify our weak points.
It has a great methodology. Students here can get analysis to their test quickly.We can learn easily through PPTs and the testing methods are good. We know that where we have to practice
My experience with Abhyas academy is very good. I did not think that my every subject coming here will be so strong. The main thing is that the online tests had made me learn here more things.
About Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.
Being a parent, I saw my daughter improvement in her studies by seeing a good result in all day to day compititive exam TMO, NSO, IEO etc and as well as studies. I have got a fruitful result from my daughter.
My experience was very good with Abhyas academy. I am studying here from 6th class and I am satisfied by its results in my life. I improved a lot here ahead of school syllabus.