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7 months ago

0 Follower 2 Views

S
Syed Aquib Ur Rahman

Contributor-Level 10

Bohr’s model played an important role in the development of quantum theory. It introduced the idea of quantised electron orbits. It disproved claims of classical mechanics, which predicted that electrons would spiral into the nucleus. Bohr proposed that electrons can exist only in specific, stable energy levels called stationary states. There would be transitions between these levels that would help Bohr explain the line spectra of hydrogen. That together linked the atomic structure with the concept of energy quantisation. Even though the model could not explain multi-electron atoms, it laid the foundation for modern quantum mech

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7 months ago

0 Follower 9 Views

A
alok kumar singh

Contributor-Level 10

Metal of group 7, 8, & 9 dose not form interstitial hydride this is called hydride gap.
Mn → group - 7
Fe → group - 8
Co → group - 9
So, Cr will forms interstitial hydride.

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7 months ago

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K
Kartik Sharma

Contributor-Level 10

For admission to the IHM Hajipur BSc course, applicants must meet the minimum eligibility criteria set by the institution for their desired course. The table below lists the IHM Hajipur courses along with their corresponding eligibility criteria:

CoursesEligibilitySelection
BSc
Class 12
NCHMCT JEE

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7 months ago

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A
alok kumar singh

Contributor-Level 10

Conjugate base is highly stable.
Acidic strength ∝ stability of conjugate base.
So,  cyclopentadiene is most acidic.

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7 months ago

0 Follower 2 Views

V
Vishakha

Contributor-Level 10

Yes, IHM Hajipur does offer a BSc course for the duration of three years, divided into six semesters. Further, it is offered in full-time mode. The minimum eligibility requirement to get admission into the BSc course at IHM Hajipur is that candidates must complete their Class 12 with English as one of the subjects. 

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7 months ago

0 Follower 7 Views

A
alok kumar singh

Contributor-Level 10

[Chemical reaction showing formation of an acetal from a bromoaldehyde, followed by elimination to form an enol ether]

 

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7 months ago

0 Follower 3 Views

S
Syed Aquib Ur Rahman

Contributor-Level 10

The existence of atomic spectra tells us that energy levels in atoms are quantised. When atoms absorb or emit light, they do so at specific wavelengths. They lead to line spectra instead of a continuous spectrum. Now, every line corresponds to an electron that transitions between fixed energy levels. This is to make the photon's energy equal to the difference between them. If energy levels were not discrete, the spectra would be continuous. So, the line spectra provide direct evidence that electrons in atoms occupy quantised energy states.

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7 months ago

0 Follower 3 Views

A
alok kumar singh

Contributor-Level 10

  Phase |            Medium |          Colloid Type |
| (1) Cheese |            liquid | solid |    Gel |
| (2) Pumice stone |  gas | solid |        Solid sol |
| (3) Hair cream |      liquid | liquid |    Emulsion |
| (4) Cloud | liquid |  gas | Aerosol |

New Question

7 months ago

0 Follower 4 Views

A
alok kumar singh

Contributor-Level 10

O? = σ1s² σ1s² σ2s² σ2s² σ2pz² π2px² = π2py² π2px¹ = π2py¹
O? = σ1s² σ1s² σ2s² σ2s² σ2pz² π2px² = π2py² π2px¹
O
? = σ1s² σ1s² σ2s² σ2s² σ2pz² π2px² = π2py² π2px² = π2py¹
O
? ²? = σ1s² σ1s² σ2s² σ2s² σ2pz² π2px² = π2py² π2px² = π*2py²
B.O = (Bonding e? - Antibonding e? )/2
B.O of O? = (10 - 6)/2 = 2
B.O of

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7 months ago

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A
alok kumar singh

Contributor-Level 10

Li? CO? decomposes easily on heating as;
Li? CO? - (Δ)-> Li? O + CO? ↑
NaHCO? is used in dry fire extinguishers.
K is most abundant element in cell fluid.
CsI is least soluble due to smaller hydration energy of Cs? & I?

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7 months ago

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A
alok kumar singh

Contributor-Level 10

Chelation increases stability of complex. Also more the chelation more the stability. Here, [Co (en)? (NH? )? ]Cl? , [Co (en)? ]Cl? and [Co (en) (NH? )? ]Cl? have chelation due to ethylenediamine. Therefore [Co (en)? ]Cl? has the highest chelation so the highest stability.

New Question

7 months ago

0 Follower 3 Views

A
alok kumar singh

Contributor-Level 10

Using, µ = √n (n+2) B.M, n = number of unpaired electrons.
? Ti? ³ = 4s? 3d¹, unpaired electron = 1
µ = 1.73 B.M
? V? ² = 4s? 3d³, unpaired electron = 3
µ = 3.87 B.M
? Sc? ³ = 4s? 3d? , unpaired electron = 0
µ = 0 B.M

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7 months ago

0 Follower 5 Views

A
alok kumar singh

Contributor-Level 10

Anions have larger radii than atoms. Also, higher the e/p ratio higher the ionic radii. So, N? ³ > O? ² > F?

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7 months ago

0 Follower 4 Views

D
Diya Nihalani

Contributor-Level 10

BSc Computer Science core subjects are mentioned in the table below:

BSc Computer Science Core Subjects

Programming in C

Linux Operating System

Fundamentals of Information Technology

SQL AND PL/SQL

Object Oriented Programming using 'C+'

Compiler Construction

System Analysis and Design

Database Management System

java Programming

Visual Basic Programming

Operating SystemsRobotics & Perception

Note: The above information is sourced from external sites and may vary

 

New Question

7 months ago

0 Follower 9 Views

A
alok kumar singh

Contributor-Level 10

Heating of cis-but-2-enedioic acid gives maleic anhydride as shown.
[Chemical reaction showing conversion of cis-but-2-enedioic acid to maleic anhydride upon heating]

 

New Question

7 months ago

0 Follower 2 Views

A
alok kumar singh

Contributor-Level 10

CFC breakdown by visible light to give Cl radical which react with stratospheric ozone.
CFC, CF? Cl? - (hv)-> Cl• + •CF? Cl
Cl• (g) + O? → ClO• + O?
ClO• + O → Cl• + O?
Atmospheric ozone reacts with NO to give NO? and O?
O? + NO → NO? + O?

New Question

7 months ago

0 Follower 3 Views

C
Chandra Sharma

Contributor-Level 10

Admission decisions at SNU are based on a number of factors, such as academic achievement like GPA, personal statements, letters of recommendation, study plan, as well as other equivalent records and / or descriptions of specific qualifications. The admissions committee considers the level of studies completed, the quality of achievement, aptness of goals, suitability for the preparation of the proposed programme of studies, and characteristics of the last institution attended. Also, proficiency in Korean and other languages are also considered.

New Question

7 months ago

0 Follower 5 Views

A
Anya Aggarwal

Contributor-Level 10

SNU Global Scholarship falls in the category of scholarship for international students in enrolled in Graduate programs. The number of recipients of this university is 160 approximately It covers the tuition fee, living expenses, housing cost, and airfare. Also, language support can be offered for those who seek to master Korean language. Additional funding can be offered to those who require academic support.

New Question

7 months ago

0 Follower 6 Views

B
Bhumika Kaur

Contributor-Level 10

SNU South Korea is a public research university in Seoul, South Korea. As a result of the university's commitment to fostering productive research environment, many of this university's departments and research institutes, especially in Engineering and Natural Sciences fields are globally recognised for its cutting-edge research. They are placed within the Top 20 in terms of citations and publications of the Scientific Citation Index.

New Question

7 months ago

0 Follower 4 Views

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