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The reaction,

Cr₂O₃ + 2 Al → Al₂ O₃ + 2 Cr (ΔG⁰ = – 421 kJ)

Is thermodynamically feasible as is apparent from Gibbs energy value. The change in Gibbs free energy is

related to the equilibrium constant, k as

ΔG = - RT ln K

A certain amount of energy activation is required even for such reactions which are thermodynamically feasible, therefore heating is required.

ΔG = ΔH + S

Increasing the temperature increases the value of TΔS, making the value of ΔG more and more negative.

Therefore, the reaction becomes more and more feasible as the temperature is increased.

With increasing awareness regarding cybercrime, courses such as the TalentSprint Hyderabad Cyber Security and Cyber Defence Certificate course provide graduates with a broad career scope. Upon completion of the course, students can pursue different career paths, each with the potential for attractive earnings. Listed below are some of the job titles pursued by students completing an Energy Management course:

• Information Security Analyst
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7.45

Nitrogen has a smaller size than Bismuth, because on going down the group the atomic size increases

i.e. N

Due to smaller size, there is very high electron density around Nitrogen as compared to Bismuth. Therefore, nitrogen atom can easily release electrons. And, we know higher the electron donating tendency, higher is the basic strength. Due to which NH₃ is more basic than BiH₃.

Note: The basic strength in group 15 is in the following pattern:

NH₃ > PH₃ > AsH₃ > SbH₃ > BiH₃

Chettinad Institute of Technology offers seats to candidates based on their merit in the last qualifying exam. The institute considers the Class 12 marks of the aspirants for admission. Once selected, aspirants have to pay the programme fee to confirm their seat. Chettinad Institute of Technology informs the candidates about the admission decision via email or SMS. 

The method of leaching consists of treating the powdered ore with a suitable reagent which can selectively dissolve the ore but not the impurities. The impurities are filtered out and are recovered from the solution. For example, bauxite ore containing SiO₂, iron oxide, and titanium oxides impurities are concentrated by this method. Leaching is significant as it helps in removing the impurities like SiO₂, FeO₂, TiO₂, etc. from the bauxite ore.

The ore can be concentrated by the process of magnetic separation, only if either the ore or the gangue can be attracted in presence of magnetic field. In table 6.1, the ores of iron such as haematite (Fe₂O₃), magnetite (Fe₃O₄), siderite (FeCO₃), and iron pyrite (FeS₂) can be separated by the process of magnetic separation.

7.44 

Nitrogen does not have d-orbital to expand its octet. So, it cannot have coordination number greater than 4. But, phosphorous has d-orbital and can extend its octet and form R₃P = O. Therefore, R₃P = O exist but R₃N = O does not.

The university offers MBA through its campus and an iMBA course through Abdul Ahad Azad Memorial College. For the iMBA programme, the number of seats available is 40. Candidates are admitted as per the sanctioned intake and based on merit in the accepted exam. This seat count is as per the official website/ sanctioning body. It is still subject to changes and hence, is indicative.

No, candidates do not require passing an entrance exam for admission at Chettinad Institute of Technology. The institute selects candidates for admission based on their merit in the last qualifying exam. Selected candidates have to only confirm their seat by paying the course fee at the institute. 

The total tuition fee for the BSc Agriculture programme at Nagaland University – Medziphema Campus for 2025 is INR 4,720. This figure is based on official data and includes tuition only. Additional charges such as hostel fees and exam fees may apply. Students are advised to refer to the university's official sources for complete fee details.

7.43

Among the group 15 elements, N has the highest electronegativity, because of which there is high electron density around N. This causes repulsion between the electron pairs around causing high HNH angle value.

As we go down the group, the electronegativity of the elements decease and the bond angle also decreases due to lesser repulsion.

Nagaland University – Medziphema Campus offers a BSc programme with a specialisation in Agriculture. The course aims to develop scientific and practical expertise in crop production, soil science, agricultural technology, and farm economics. This specialised curriculum equips students with the knowledge needed for careers in agricultural research, agribusiness, and rural development.

The CUET UG entrance exam is conducted by NTA (National Testing Agency), which is a national-level entrance exam and requires students to pass Class 12. Inaddition to this, students are required to secure at least 50% marks in Class 12 from a recognised board of India. 

CUET UG is one of the most popular entrance exams in India for admission to undergraduate courses in many popular colleges. There is no age limit criteria for appearing to CUET UG entrance exam. 

To apply for the BSc Agriculture programme at Nagaland University – Medziphema Campus, students must have passed Class 12 with at least 50% aggregate marks. The required subject combination includes Physics, Chemistry, and Biology/Mathematics/Agriculture or an equivalent. Applicants must ensure they meet these academic qualifications before submitting their applications.