ICSE − Q & A

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.

https://www.respaper.com/

+ 3 more questions by mumpi_1989  

I'm talking about this website!
asked by Sujata Kundu (mumpi_1989) 47 days ago
1

There is membership access right... I want to do that... In order to be a member I must pay... How will I do that? Is there any UPI option for payment??
asked by Sujata Kundu (mumpi_1989) 47 days ago
1

Is there any UPI option for payment??? Please help????
asked by Sujata Kundu (mumpi_1989) 47 days ago
1

i'm unable to download papers

Class 9 final question paper

How to contact respaper

+ 2 more questions by sarahmeh  

How to contact
asked by Insha Naz Fatima (sarahmeh) 184 days ago
1

Hii I have uploaded my school paper yet I have not gotten access to any other paper...why??? Did it happen with someone else too??🙃
asked by Insha Naz Fatima (sarahmeh) 184 days ago
1

8th Icse question papers

What's up people? Does anyone I know ever visit this place? If yes please just hit me up with a "hi" I would love to chat haha... Take care everyone :))

What is the difference between steam turbines and gas turbines?

+ 2 more questions by yogesh  

who is jessica's father in merchant of venice?
asked by Yogesh (yogesh) 1 year ago
1

What is "how are you" in French?
asked by Yogesh (yogesh) 1 year ago
1

I've got an endsem exam in an hour but all I am doing is reading old threads on res. 🥲

Hlooo..itzz been longgg...ICSE 2018 batch anybody??