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explain why rusting of iron objects is faster in coastal areas than in desert

ADITYA KUMAR Student Expert 3rd Apr, 2020
Hi

Rusting of iron only takes place when it comes in touch with the moist air.

Now, Coastal areas has oceans and seas. Because of this, high percentage of moist and cold air is always present in the atmosphere. So rusting of iron takes place very easily in coastal areas

48 Views

important chapter for physics and chemistry that I can study to get 180+ in jee main 2020

Harsha Sinha 3rd Apr, 2020

Hi there,

Since you want to score more than 180 then the scoring topics are

1) Physics- optics, waves, modern physics. And most easy and high scoring is electrophysics.

2) Chemistry- p block, atomic structure, thermodynamics. Organic chemistry.

If you complete these topics then easily you can score more than

53 Views

please provide me with the important chapters in physics and chemistry so that I can score 180+ in jee 2020

Sarthak Dhiman 3rd Apr, 2020

Hello Aspirant.

First of the the thing to be noted is that the JEE main paper doesn't comes with same marks distribution to each chapter each year. The weightage of each topic changes every year. For example- A topic which might constitute 20 marks to paper in previous years might

54 Views

please provide me with the important chapters in physics and chemistry so that I can score 180+ in jee 2020 and can you also send me the most weigthage chapter according to latest news in jee 2020

Aditi amrendra Student Expert 3rd Apr, 2020
Hello,

These are important topics from JEE mains/examination point of view.
But as you have mentioned you are aiming for 180+ you need to cover all topics and give equal importance to each topic.

Physics :
Work, Energy and Power
Electrostatics
Current Electricity
Wave Optics
Ray Optics
Centre of Mass,
48 Views

sir important chapters in physics and chemistry according to the no of questions asked in jee main 2020 and what all chapters can be neglected for the jee

Hrisheekesh Singh 3rd Apr, 2020

Hi Anandv,

I will not advice to neglect any chapter for JEE Examination, but I have listed out some topics with the highest weightage in JEE Main 2020:-

@Physics

  • Modern Physics - 20 marks
  • Heat and Thermodynamics - 12 marks
  • Optics - 12 marks
  • Current Electricity - 12 marks
  • Electrostatics
62 Views

what are the choices after Msc chemistry?

Prakarsh Kaushik 2nd Apr, 2020

Hello,

There are many good career options after doing M.Sc in Chemistry. Some of them are -

  1. You can join Narcotics department in Law enforcement Agencies
  2. You can go for PhD
  3. You can get a job at pharmaceutical companies
  4. You can join industry related to production, manufacturing, processing and testing
86 Views

how many % paper come from ncert in chemistry in jee main

iammohdshareef 2nd Apr, 2020
Hello,
.
The core syllabus for JEE Main is taken from NCERT books. More than 95% of the questions are asked from NCERT. For remaining 4-5% you will need few books. Before we recommend you some best books for JEE Mains, we also have JEE preparation material https://learn.careers360.com/engineering/jee-main/

Physics best
114 Views

please suggest me which is the best book for neet except ncert of physics, chemistry and biology???

Aakansha david 2nd Apr, 2020

Hello Aditi,

Some of the best books for NEET preparation -

For Physics -

- Concepts of Physics by H. C. Verma

- Objective Physics By DC Pandey

- Fundamentals of Physics by Halliday, Resnick and Walker

- Fundamental Physics by Pradeep

- Problems in General Physics by IE Irodov

1007 Views

a student having PCB is eligible for taking admission in BSc chemistry Hons in St Stephens College or Du

Manidipa Kundu Student Expert 11th May, 2020

hi,

the eligibility criteria for admission in delhi university or its affiliated colleges for bsc in chemistry is candidates must have studied physics, chemistry and mathematics as a subject in 10+2 course,

The overall percentage in Physics, Chemistry and Mathematics should be 55% and one compulsory language should be 50%.

554 Views

student having PCB is eligible for BSc chemistry Hons in St Stephens College or Du.

Rachit Bansal 11th May, 2020

Eligibility Criteria for B.Sc Chemistry Hons. in St Stephen's College DU:

  1. Qualified class 12th with Maths, Physics and Chemistry as mandatory subjects
  2. Candidate should have secured minimum 55% aggregate in PCM (mandatory subjects) and must have qualified in any of the language papers with minimum 50% marks.

So if you

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