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This is a Multiple Choice Questions as classified in NCERT Exemplar

Ans: Option (iv)

The electrons involved in the formation of any chemical bond are the valence shell electrons. In the given electronic configuration,1s² 2s² 2p⁶ 3s² 3d² 4s² the valence shell electrons are in d-orbital and s-orbital. So, the four electrons involved in the chemical bond formation will be 3d² 4s².

Rajagiri College of Social Sciences (RCSS) offers BSc under two specialisations. The selection process for BSc admission at the college is primarily merit-based. Prospective candidates are shortlisted based on their merit in the qualifying exam. Bonus marks are awarded to NCC, NSS, & Ex-servicemen applicants, and widows & children of Jawans & Ex-servicemen. The next step in the selection process is for shortlisted candidates to appear for a Personal Interview (PI) conducted by the college. To be considered for the selection process, candidates are required to fulfil the course-specific eligibility criteria.

Institute of Hotel Management, Catering Technology & Applied Nutrition, Bhubaneswar BSc admission is based on candidates' performance in the NCHMCT JEE entrance exam, followed by the NCHMCT JEE counselling process. IHM Bhubaneswar NCHMCT JEE cutoff 2025 has been released for the first round, wherein the closing rank stood at 7808 for the students belonging to the General All India quota. Aspirants seeking admission can refer to the table below to view the three years of NCHMCT JEE first-round closing ranks for the general category students:

This is a Multiple Choice Questions as classified in NCERT Exemplar

Ans: Option (ii)

Hydrogen bond is the strongest in that molecules have a higher difference in electronegativity. Due to the small size of the oxygen atom, it has the highest electronegative character. So, H₂O molecules will have the strongest hydrogen bonding

HCl, HI and H₂Sdo not have hydrogen bonding between their atoms. So, H₂O will have the strongest hydrogen bonding.

This is a Multiple Choice Questions as classified in NCERT Exemplar

Ans: Option (iii)

(i) The molecule XeF₄ has a square planar geometry and the bond lengths of all the fluoride atoms attached to xenon atoms are equal.

(ii) The molecule BF₄ ^- has a tetrahedral geometry and the bond lengths of all the fluoride bonds attached to boron are equal.

(iii) In the molecule C₂H₄ all the bonds are not equal. The bond length of the double bond between the carbon atoms is 134 pm and the bond length of CH- is 110 pm.

(iv) The molecule SiF₄ has a tetrahedral geometry and the bond lengths of all the fluoride atoms attached to silicon atoms are equal.

This is a Multiple Choice Questions as classified in NCERT Exemplar

Ans: Option (iii)

The molecular orbital diagram of O₂^2-,   π^∗2Px and π^∗2Py molecular orbitals are completely filled, which are partially filled in O2. These are no unpaired electrons. So,  O₂^2-does not contain unpaired electrons.

The fee across specialisations for the NIFT Raebareli Certificate courses is INR 47,500. 
Candidates can fill out the application form present on the official website of NIFT Raebareli to get a seat in the programme. The course duration is 3 months for various specialisations offered in the Certification programme. Candidates can get admission on the basis of their academic performance uptil Class 12. 

If you want to do B.Tech in CSE in Bangalore, top colleges include RV College of Engineering, MS Ramaiah Institute of Technology, BMS College of Engineering, PES University (Ring Road), and UVCE. To get in, you'll need a good KCET or COMEDK rank—ideally under 4,000 for the top ones, and even better for CSE.

This is a Multiple Choice Questions as classified in NCERT Exemplar

Ans: Option (iii)

A double bond has one s bond and one π bond. In the above given structure 5π bonds are present. The s bonds are the additions of all the single bonds in the structure. There are 19s bonds in the above given structure.

This is a Multiple Choice Questions as classified in NCERT Exemplar

Ans: Option (i)

(i) The molecule of BH₄ ^- has four bond pairs and zero lone pair of electrons, so it will be a tetrahedral molecule.

(ii) NH₂ ^- has two bond pairs and two lone pairs of electrons on the nitrogen atom. So, it will have a bent geometry.

(iii) CO₃ ^2- has three bond pairs and no lone pairs of electrons on carbon atoms. So, it will have a trigonal planar geometry.

(iv) H₃O⁺ has three bond pairs and one lone pair of electrons on oxygen atoms. So, it has a pyramidal geometry.

Yes, you can change TOEFL test center, but only if another center has available seats. You may need to pay a reschedule fee. Make sure to check the new center and book early so you don’t miss your test date.

This is a Multiple Choice Questions as classified in NCERT Exemplar

Ans: Option (iv)

The number of bond pairs on the nitrogen atom of NO₃^-  are 4 and the structure of - NO₃ does not have any lone pairs of electrons. The structure of  NO₃^- molecule is:

IISER Pune accepts various national-based/ in-house entrance test scores for admissions to MSc courses. Moreover, which entrance exam is accepted by the institution depends on the specialisation candidates have selected. Check out the name of the specialisation and its accepted entrance exam in the table below:

You need a valid ID (mostly a passport) and an ETS account. You must enter correct name and ID details while booking.

This is a Multiple Choice Questions as classified in NCERT Exemplar

Ans: Option (ii)

In a polyatomic molecule or an ion, the formal charge of an atom is defined as the difference between the valence electrons present in that atom and the number of electrons assigned to that atom in the Lewis structure.

Formal charge = No. of valence electrons - (No. of lone pair $+\frac{1}{2}Nbelectrons)$

Formal Charge = 6 - $\left(6+\frac{1}{2}*2\right)$

Formal Charge = -1

It is better to book TOEFL exam at least 1 or 2 months early, because seats get full very fast, specially in popular TOEFL centers or busy exam season. Early booking give you enough time for TOEFL preparation and avoid last minute problem.

Punctuations which are commonly put around Interjections include comma (, ), semicolon (;), and exclamation marks (!). Some of the other punctuations are hyphen (-) or full stop (.).

Yes, candidates can obtain a seat in the BPharm at VMSB UTU by meeting certain eligibility criteria. The selection of candidates is based on the scores obtained in the entrance exam and performance in academics. The university accepted UKSEE for BPharm admission. The university offers approximately 1,400 seats for its BPharm programmes. However, it must be noted that the mentioned seat intake is as per the official website. Hence, it may vary.