Manish Mehta(MRM)

The  most astonishing thing about chemistry is it's practical approach, one can support the theoretical structure of the reaction via experimental proofs.  One such very beautiful reaction is Tollen’s reagent test or  silver mirror test which give confirmation for the aldehydes and distinguish them from other carbonyl compounds like ketone and acids.  Ammonical silver nitrate solution is termed as Tollen’s reagent which in the basic medium reacts with Free H of aldehydes gp and gives beautiful Ag (Silver) deposit across the test tube. Here in the picture beautiful description of the Ag formed is given via comparing normal test tube with Ag coated tubes.

WHY MBBS & MEDICAL STUDIES IN INDIA HAVE BECOME MORE THAN A DIFFICULT TASK?   These days the #NEET2024 Results creating a lot of buzz in the news specially after the supreme court of INDIA and NTA explanation regarding the results it become more and more proactive conversational part between the medical aspirants and the professionals. The hot topic is not new to the medical aspirants but it eventually take lime light after the result declaration and the score of 720 by the aspirants unanimously from the same exam Centre.  Options are limited and the seats too for the medical aspirants to pursue the MBBS degree specially in the country like INDIA total no. of NEET aspirants appeared this year were 23.5 lakhs where as previously the number was 20.2 lakhs.  The total number of seats are 1.30 lakhs (private and Govt) which directly increases the huge competition between the aspirants. Among the total aspirants not all can go for the Govt. aided colleges and universities...

Three  years almost on the roll ever since the world's biggest disaster of the century took place. We all across the globe are on the mode of recovery and guess what  somehow recovered from all kind of inflation.  It's always a good thing to remember "tough time teaches you best lessons" Same with that time too, well to begin with the blog utilizing that time many people among us across the globe from every continent almost achieved the best version of themselves. That was seriously the best of the time when you can really explore yourself in terms of new skills, hobbies, activities, blogs, vlogs, podcasts and so many other platforms. Sometimes we always think that whatever they have achieved we can't or we are too late for it now, coz it's really difficult for us to cope up with the pace of life and also to start from the scratch #level 0.0  Keeping yourself busy with the hobby is one of the best way to channelise the energy in u. Its just the matter of righ...

Ever since I have started about my journey as a teacher or educationist or academician wow so amazing adverbs to describe what I'm doing, so funny... But let's focus what i have been observing since the little journey of my teaching experience since 2010, the education and it's most important factor study becomes so much from fizz to hitz over the decade. I'm pretty much sure we all have been through the technological transformation era due to COVID-19 , We all had suffered a lot in terms of emotional as well as mental health trauma, not only we had suffered but students also suffered alot. It's the hell of the task we all had been through the level of stress been at peak and there is no hope whatsoever, the exams trauma and the result scenario already plays the havoc situation in the life of students already all over the globe ,  the situation of India after back to back 2 waves of COVID is slightly off track but we all are managing hard to make it look...

Ending uncertainty for engineering and medical college aspirants, the government today announced dates for holding of Joint Entrance Exams (JEE) and National Eligibility cum Entrance Test (NEET). While interacting with students in a webinar, HRD Minister Ramesh Pokhriyal said the JEE-Mains exams will be held from July 18-23 while JEE-Advanced exams will be held in August. He also announced that the medical entrance exam NEET will be conducted on July 26. IIT-JEE (Main) examination, 2020, will be held on 18, 20, 21, 22, and 23 July. The minister said IIT-JEE Advanced exam will be held in August but the exact dates will be announced later on.  JEE was earlier scheduled to be held on May 17 while JEE-Mains were earlier scheduled from April 5-11 but all exams were postponed due to nationwide lockdown announced to contain the  COVID-19  spread. The government is yet to take any decision on dates for the pending CBSE Class 10, 12 board exams, Pokhriyal said. CBSE exam dates...

In order to study the fundamental basics of Compound formation scientists had collected some laws , which stood the basic part and foundation of Chemical compound formation... The main laws are . Law of conservation of mass  . Law of Definite Proportions . Law of Multiple Proportion  . Law of Reciprocal Proportion  Let's have a look what they have to say  1st Law " According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants." 2nd Law "In chemistry, the law of definite proportion, sometimes called Proust's law or the law of definite proportion, or law of constant composition states that a given chemical compound always contains its component elements in fixed ratio (by mass) and does not depend on its source and method of preparation." Example 👇 3rd Law "The law of multiple proportions, states that when two elements combine to form more than on...

As the CBSE syllabus has been slightly changed for classes 9-12 due to the school closure because of the Coronavirus lockdown, we got talking to a CBSE board examiner about the kind of changes seen in the Class 11-12 Physics syllabus for 2020-21. The Central Board of Secondary Education (CBSE) has slightly changed the 2020-2021 syllabus for classes 9 to 12 because of the long period that schools need to remain shut due to the Coronavirus lockdown till May 3, causing problems with the time required by teachers to complete their syllabus in class. NCERT has come up with a new academic calendar as well as per the HRD Ministry's orders. The changed CBSE syllabus has fewer activities and practical work since this is something that cannot be carried out via the online classes that CBSE schools are holding to make sure studies don't come to a standstill with the Coronavirus pandemic. We have for you here the changes in the Physics syllabus of classes 11 and 12 as explained...

JEE (Main) 2020: Candidates Can Change Exam Centre Due to Covid-19 Situation, Says NTA The NTA will make efforts to allot city of examination to the candidates in order of the choices now opted by them in their application form, subject to the availability of capacity in the desired city. New Delhi:  Human Resource Development minister Ramesh Pokhriyal ‘Nishank’ announced on Thursday that in view of the inconvenience caused by Covid-19, the students appearing for JEE (Main) this year can make corrections in the application forms to include the choice of cities for centers. “JEE (MAIN) 2020 applicants, in the view of current #COVID19 situation, I have advised @DG_NTA to further expand the scope of making corrections in application forms allowing students to include the choice of cities for centres,” he posted on Twitter. The National Testing Agency (NTA), an autonomous and self-sustained testing organisation that conducts entrance examinations for admission/fellowship in...

Ukraine officials have noted a spike in radiation levels in the area surrounding Chernobyl after a forest within the exclusion zone caught fire. Firefighters continue to fight the fire that originated in the Chernobyl zone. The situation is difficult. The fire spread to the Chernobyl zone of 20 hectares, but m than 100 hectares are burning in total. The State Emergency Service said on Saturday that increased radiation in some areas had led to 'difficulties' in fighting the fire, but they were eventually able to localise part of it with the fire no longer visibly burning on Sunday morning, The Guardian reports. The Chernobyl nuclear disaster in 1986 killed countless people and harmed many more, with the true number of casualties still not known. People are banned from living within 30 kilometres (18 miles) of the power station, although some have remained in the exclusion zone despite orders to leave. Yegor Firsov, head of Ukraine's state ecological i...

Decision on reopening schools, colleges on April 14 after reviewing Covid-19 situation: HRD minister Union HRD Minister Ramesh Pokhriyal said that the government will take a decision on reopening of schools and colleges on April 14 after reviewing the coronavirus situation in the country. HRD minister Ramesh Pokhriyal ‘Nishank’  The government will take a decision on reopening of schools and colleges on April 14 after reviewing the coronavirus situation in the country, Union HRD Minister Ramesh Pokhriyal 'Nishank' said on Sunday. In an interview to PTI, Ramesh Pokhriyal said the safety of students and teachers is of utmost importance to the government and that his ministry is prepared to ensure there is no academic loss to students if educational institutions needed to remain shut beyond April 14, when the ongoing 21-day lockdown is slated to end. "It is difficult to take a decision at the moment. We will review the situation on April 14 and depending upon the ...

HALOALKANES The compounds of hydrocarbons (saturated) containing Halogen (X) attach with them in SP 3 Hybridisation state is known as “ HALOALKANES ”  They are considered to be ionic in nature because of the presence of Halogen gp attached.  They can be categorised into following three types depending upon the number of #Alkyl gps attached with the Carbon bonded to Halogen directly. Chemistry of HALOALKANES in terms of their physical properties is not much complex, their Physical properties are; • Melting and Boiling points • Density  • Solubility , etc... Boiling point of HALOALKANES is higher , if the molecules mass of the compound is high. Usually the increase in branching decreases the surface area and thus decrease the boiling point too.

#JEE NEWS (2017) The Ministry of Human Resource Development, Government of India has notified following two changes in the JEE pattern for 2017: ■ There shall be no weightage for the 12th class marks in calculating the ranks in the JEE (Main) examination , ■ For the candidates to qualify for the admission in the IITs/NITs/IIITs and such other CFTIs whose admissions are based on the JEE (Advanced)/JEE(Main) ranks, they should have secured at least 75% marks in the 12th class examination, or be in the top 20 percentile in the 12th class examination conducted by the respective Boards. For SC/ST students the qualifying marks would be 65% in the 12th class examination. The States of Madhya Pradesh, Haryana, Uttrakhand, Nagaland, Odisha & some other institutions have joined JEE (Main) system, however, their admission criteria will be notified by the concerned authorities. Therefore, the candidates seeking admission to the institutions in these states, which were...

Students appearing for Class X board exams from next year will have to study six subjects instead of five with the Central Board of Secondary Education (CBSE) remodelling its assessment scheme. Class X students have to presently study five subjects—two languages, social science, mathematics and science. Students also have a choice of studying a vocational subject as an “additional” course. However, from the 2017-18 academic year, it will be compulsory to study a vocational subject.

The term nuclear_charge is use to define the effective force over the outermost electron present in the valence shell of an atom. The consideration of #Nuclea r_charge is just as an imaginary line if force which tends to hold up the electrons more effectively so that the magnitude of # Atomic_size decrease and this in turn affects the other # periodic_properties of the elements. With the increasing value of #Nuclear_charge the inward pull💪 to the electrons increases and thus size decreases.👇👇

A chemical reaction is said to Nucleophilic type if the attack of a positive charge loving specie takes place over it. There are generally two types of reactions for this category ; ● SN1 reaction ● SN2 reaction # SN1 》a reaction is said to be SN1 type if it does involves the nucleophilic substitution by unimolecular type. In SN1 reactions the generation of carbocation takes place in the very first step then the attack of nucleophile takes place. They involves the complete retention of symmetry. Although inversion of symmetry also occur but the major product is always with the retention of symmetry... It involves the presence of Base in the first step. The order of reactivity is 3°>2°1 ° since the carbocation generation occur. # SN2 》a reaction is said to be of SN2 type if it does involves the nucleophilic substitution of bimolecular type. This reaction is of 1 step only since the attack of nucleophile as well as the removal of le...

Nucleic Acids are defined as the biomolecules, polymers present in the living system. They are also called #polynucleotides since the repeating unit of nucleic Acids is nucleotide. Each nucleotide is made up of three parts ● a sugar molecule           ●  a heterocyclic nitrogenous Base           ●   a phosphoric acid group Thus in general a nucleotide may be represented by the figure below  #MRM

Photoelectric effect ; when light of certain frequency strikes the surface of a metal, electrons are ejected from the metal surface. This phenomena is called photoelectric effect.  Cesium, which amongst the alkali metals has the lowest ionisation energy is metal from which electrons are ejected most easily by light. This metal is used in making electric cells.  Observation regarding photoelectric effect are;  1) for each metal, a certain minimum frequency of incident light is needed to eject electrons. This is known as threshold frequency.  2) The no.of ejected electrons from metal surface depends upon the intensity of incident radiations.

Isomers are define as the the chemical compounds having same molecular formula but different structural formula. On the basis of various types of arrangement we have the following classification of isomers...

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Organic Analysis of salts... One of the qualitative technique by which we can identify the given mixture of salts(inorganic or organic). The basic tool of identification is the step by step analysis of given mixture. It may involve prelim test and then some chemical tests... However we may get the best results by confirmatory tests...  Here we have some basic trends about how to get analyse given mixture of salt.