Gchem Classes
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This channel is to discuss the IIT-JAM Test Series problems.
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CSIR Exam 03 will be live at 9 AM today
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Gchem CSIR Test Series_syllabus.pdf
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Gchem CSIR Test Series_syllabus.pdf
Rank IIT-JAM test-04
I will upload only question paper for Gchem IIT-JAM test 04 on Tuesday, for solution download the Gchem Classes app and subscribe the test series.
Coming sunday (9th August) we have 1st mini test, Syllabus: 1. Atomic and Molecular structure, 2. The gaseous state, 3. Periodic properties, 4. Chemical bonding.
IIT JAM official Notification Released
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http://jam.iisc.ac.in/
Guys your exam is scheduled at 9AM today
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Heat of formation can be

I) Positive Ii) Negative Iii)Zero
Anonymous Poll
22%
Only option 2 is correct
16%
option 2 & 3 are correct
55%
All are correct
6%
None are correct
Heat of formation in general can be positive negative and zero

✔️ According to IUPAC heat of formation of elements in it's stable form(standard state) is zero.
✔️ Generally heat of formation is negative but for a unstable product the heat of formation is positive
Trick:
🔥 ∆Hf for stable product is negative
🔥∆Hf for unstable product is positive
🔥∆Hf for elements in its standard state is zero



✔️For the second question its mentioned heat of formation of compounds
So answer will be positive and negative
Did you understand it ??
Anonymous Poll
73%
Yes
27%
No needs more explanation
Grab the discount on all our test series and enroll yourself for Scholarship test. Few hours left
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Dear JAM Aspirants
Today you have a test at 9AM
Syllabus: basic organic chemistry and stereochemistry

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Congratulations, Test 07, solid state
Congratulations...
Gchem Classes is announcing Scholarship cum admission test for JAM and GATE 2021.

Take the first step towards success and appear in GSAT on 11April 10 AM.

Grab great offers by appearing in GSAT 2021.


How to enroll for GSAT 2021?

Go to the link and download the app
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Sign up yourself by giving email id and mobile number.

Then enter to the batch with the batch code GSAT2021

Exam will be conducted on Gchemclasses App
Co-ordination Compounds

Class 1
https://youtu.be/zBCovzXn7o4

class 2 with DPP

https://youtu.be/Lu68K5EJCdg
Hurry offer ends by Sunday...