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Indian Certificate of Secondary Education (ICSE), New Delhi
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Does Chlorine have more electron affinity than Fluorine, if so then why?
asked by Sahaj Shah (eternityseeker) 5 years ago
2
Are uses of hydrochloric acid,sulphuric acid and nitric acid in syllabus?
I just want to confirm.
asked by Ssm (ssm2020) 5 years ago
2
Give reason for the basic nature of ammonia.
asked by Vindhya Badal (_itsme_) 5 years ago
3
Why are lead salts not tested for flame test?
asked by Anvaya Juvekar (anvaya) 5 years ago
1
The message icon at the top of my page shows "8" but I've read all the messages. What's more, the number has been increasing (from 1 to 8 now). Anyone else having the same issue?

P.S. I haven't even blocked anyone...
asked by ... (sam307) 5 years ago
6
To all potterheads and hungerheads! I just found this, enjoy!
https://www.youtube.com/watch?v=D9Mv6gXqADM
asked by Mr. Mathematics (aditya_bandaru) 5 years ago
2
Ooooh, idk why I have to say this but...
PW has 1M subs now!!
asked by Aryan Gupta (xprince) 5 years ago
4
Happy Holi Resmates(my virtual friends) and to your family 

[actually today in our state Holi is being celebrated]
asked by SODA The Ultimate comedy (aniruddha_1) 5 years ago
8
What is the difference in case of metals-
Chemical reactivity and ability to discharge at cathode?
asked by Bitthal Maheshwari (bitthal04) 5 years ago
3
1. Is Sodium hydrogen carbonate(NaHCO3) a basic salt or an acidic salt? According to defn, since it has a hydrogen atom, it should be acidic, but in reality, NaHCO3(Baking soda) is used to neutralize acids right?

2. Do basic soluions too have H+(aq.) ions? Explain why they are basic by taking an example. 

3. Why is "Contact" Process called so? I was just curious.

4. Why is Ammonium "Chloride" used in Lab. Prep. of Ammonia?

5. Are Deliquescence, Efflorescence, etc. in syllabus? They aren't mentioned...

6. Why is it "Basicity of Acids" and "Acidity of Bases" ? Why not "Basicity of Bases" and "Acidity of Acids" ?(Again, curiosity)

7. Colour changes in which indicators should we remember ? Is Litmus, Methyl Orange & Phenolphthalein enough?

8. Syllabus of Metallurgy starts from Minerals and Ores, right? I assume general properties of metals and non-metals aren't in syllabus?

9. Is Na2CO3 a basic salt, or a normal salt? Since it's made of a strong base & weak acid, but at the same time, doesn't have OH- ions to make it basic...

10. Are numericals on pH value required?

Sorry if it's a bit too long(I know it is). But I'd appreciate anyone taking out time to answer these.
asked by Prateek Pradhan (prateek235) 5 years ago
3

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