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RBSE sometimes updates its class 10 syllabus to match current educational standards. For the academic year 2025-26, the board has not made any changes in the syllabus. However, students should always check the official RBSE website or ask their teachers to confirm the latest RBSE 10th syllabus 2025-26. Even small changes, like a few removed or added topics, can impact exam preparation. Knowing these changes early helps avoid wasting time on outdated topics. Always study from updated textbooks and official materials.

This is a short answer type question as classified in NCERT Exemplar

Resonance effect: Because the C – X bond has the characteristics of a partial double bond, it is extremely difficult to break.

(i) The C - X bond in haloarenes is extremely less reactive to nucleophilic groups 

(ii) The C atom linked to the halogen is sp² hybridised in the C – X bond. Carbon that has been sp² hybridised with a higher s-character is more electronegative in nature and can retain the electron pair of the C - X bond more tightly than carbon that has been sp³ hybridised with a lower s -character in haloalkanes.

Students need not worry about the accuracy of the UK 10th result released online. UK 10th result 2026 will be released after various checking process. There is very less chance for the UK 10th result released online to be incorrect. Students are advised to collect the mark list from the school after the UK 10th result is announced.

This is a short answer type question as classified in NCERT Exemplar

The reaction of HCl and isobutylene is given as:

Steps in reaction involves are:

Follow the tips below to manage stress level during UK 10th board exams.

• Prepare a time table
• Study daily as per syllabus
• Practice sample papers and previous question papers.
• Revise important notes
• Take enough breaks
• Stay healthy
• Practice yoga

A Linguistics course can be pursued at the degree, certificate, and Diploma levels. The course duration of a linguistics degree depends on the level at which it is being pursued. Some of the popular Linguistics courses and their course duration have been mentioned in the table below:

This is a short answer type question as classified in NCERT Exemplar

Tert-butyl bromide is substituted via the S_N¹ process because it may produce a stable carbocation in the first step after the halide group is cleaved. The nucleophile OH -  interacts with the carbocation next. The primary halide n-butylbromide, on the other hand, is unable to create a stable carbocation, thus it undergoes the S_N² process, which is a one-step substitution involving OH -  attack and concomitant X -  leaving to generate n-butyl alcohol.

Once you finish learning according to UK 10th syllabus, you can start solving the UK 10th sample papers and previous year question papers. You can solve the question papers and understand your weaknesses. Thus you can concentrate more on the topics on which you are weak.

There are different factors that determine the seat intake of the BBA at SICSR, Pune. Additionally, there are more than 100 seats for the BBA programme provided by the institute. The following is a list of the main factors that candidates can consider for the SICSR Pune BBA seat intake:

• Availability of Seats
• Number of students who applied
• Number of shortlisted students
• Academic record
• Scores obtained in the entrance exam
• Performance in the PI and GE round

This is a short answer type question as classified in NCERT Exemplar

Because of resonance stabilisation, aryl halides are less reactive to nucleophilic substitution. The inclusion of a -NO₂, an electron-withdrawing group in the ortho or para position, enhances the aryl halide's sensitivity to substitution. The more electron withdrawing groups there are in the aryl halide, the more reactive it is. The decreasing sequence of reactivity, according to this theory, is III > II > I.

Students are advised to correct the errors even if it as a minor mistake. They must inform the school authorities about the error in the UK 10th hall ticket. School authorities will help you in getting the new hall ticket without any mistakes.

This is a short answer type question as classified in NCERT Exemplar

Nucleophilic substitution and elimination (β-elimination) reactions are both possible with alkyl halides.

Although, with the appropriate reaction conditions and reagent selection, a specific product can be produced. In most cases, the elimination reaction is best suited to strong and bigger bases, as well as high temperatures. The substitution reaction, on the other hand, is best for weaker and smaller bases at lower temperatures.

CH₃CH₂Br+alc.KOH KCH₂=CH₂ + HBr

CH₃CH₂Br + aqKOH→CH₃CH₂OH + KBr

The students should divide the topics and set daily study hours for each subject. They can give more sessions to difficult subjects and less time to easy papers.  

This is a short answer type question as classified in NCERT Exemplar

The IUPAC names for DDT and benzene hexachloride are 2, 2-bis (4-chlorophenyl)-1, 1-trichloroethane and 1, 2, 3, 4, 5, 6-hexachlorocyclohexane, respectively.

They are poisonous and non-bio digestible at the same time. They are fat soluble, and their concentration in the food chain continues to rise. As a result, they are prohibited in India and other nations.

It is mandatory to have 75% attendance to get hall ticket for the board examinations. However, you may submit a medical certificate in case you were not well or due to any other medical condition to get a waiver.